Machine Design Board Review part1.pdf

MODULE 1 - ELEMENTS IN MACHINE DESIGN
•••
MODULE 1
1. The function of clutch in the machine
tool is:
A. lowering of drive speed
B. alignment of drive shaft
C. to disconnect or connect at will the
drive (ANS)
D. to insure that two shafts line up at high
speed
2. Height of tooth above pitch circle or the
radial distance between pitch circle and top
land of the tooth.
A. top root
B. addendum {ANS)
C. land
D. hunting tooth
3. In involute teeth, the pressure angle is
often defined as the angle between the line
of action and the line tangent to the pitch
circle. It is termed as:
A. helix angle
B. angle of recess
C. angle of obliquity {ANS)
D. arc of action
4. In the selection of wire rope, regular lay
means wires and strands are arranged in
the following manner:
A. twisted in same direction
B. twisted in any direction
C. twisted in opposite direction (ANS)
D. twisted in along direction
5. Also called eccentrically loaded bearing
is ___ _ _
A. full bearings
B. offset bearing (ANS)
C. partial bearing
D. fitted bearing
6. The property of material that relates the
lateral strain to longitudinal strain.
A. stress
B. strain
C. Poisson's ratio (ANS)
D. endurance limit
7. The angle included between the side of
the thread measured in an axial plane in a
screw thread:
A. angle of thread (ANS)
B. angle between thread or 40"
C. helix angle thread
D. half angle thread or 20°
8. Flat leather belting not recommended
for use in an excess of fpm.
A. 3600
B. 4800
C. 6000 (ANS)
D. all of these
9. Ability to resist deformation under
stress:
A. plasticity
B. all of these
C. stiffness (ANS)
D. toughness
10. The reciprocal of a diametral pitch or
the ratio of pitch or the ratio of pitch
diameter to the number of teeth.
A. lead
B. m~dule (ANS)
C. involute
D. clearance
11. For an evenly distributed and uniform
wear on each meshing gear tooth, the ideal
design practice is to consider a ____
'A. wear resistance alloy addition to tooth
gear
B. heat treatment of gears
C. hardening of each tooth
D. hunting tooth addition (ANS)
12. The changes in shape or geometry of
the body due to action of a force on it is
called deformation or _ ____
A. shear stresses
B. stresses
C. compressive stress
D. strain (ANS)

ORDILLO
'° for high speed
,·mum number of
uld be:
e ratio of pitch
- mber of teeth:
n of the profile
rn of the tooth
• which is equa
endum:
dent of loaos
. ouiry mo· C" ·:
•••
C. 5 times
D. 6 times
27. The motion of an object
diminished/decreased speed:
A. deceleration
B. all of the above
C. retarded motion (ANS)
D. negative impulse
28. Most popular soldering material:
A. 10/80
B. 45/ 55
C. 50/50 (ANS)
D. 60/40
29. The following pertain to joining of
metals except:
A. welding
B. soldering
C. casting (ANS)
D. brazing
30. Killed steel is always associated with:
A. silicon (ANS)
B. manganese
C. phosphorous
0. sulfur
31. The usual ratio of water to soluble oil
used as cutting fluid:
A. 50% water to 500A. oil
B. 2 water to 1 oil
C. 3 water to 1 oil
D. 4 to 80 water to 1 oil (ANS)
32. The good deoxidizer in steel melting:
A. manganese
B. silicon
C. all of these (ANS)
D. aluminum
33. Good stabilizer in stainless steel:
A. columbium
B. titanium
D. tantalium
34. What is/are the common cutting fluids
used for cutting metals?
A. all of these (ANS)
B. water with soda or borax
C. light mineral oil
D. soluble oil
35. It is considered semi-solid lubricant:
A. all of these
B. lube oil
C. graphite
D. grease (ANS)
36. Metals are conductive because:
A. the electrons are loosely bound to the
nuclei and therefore mobile (ANS)
B. having a characteristics metallic luster
C. they are on the left side of the periodic
table
D. they have extra electrons as exhibited by
normally possible balance state
37. The purpose of these parts in
application are to have better bearings to
seal the guard against marring, etc.
A. bearing journal
B. metallic seal
C. washer (ANS)
D. shaft seal
38. The yield strength of a regular yellow
brass (65 to 70% Cu, 30 to 35% Zn) can ··be
increased/improved by:
A. cold working (ANS)
B. tempering
C. chill casting
D. heat treatment
39. Used in as cast condition steel casting
with carbon content less than % C.
A. 0.26
B. 0.15 to 0.18
C. 0.20 (ANS)
D. 0.25
40. Liners normally are made of:
A. cast iron (ANS)
B. alloyed bronze
C. alloyed steel
D. alloyed aluminum

••• MACHINE DESIGN REVIEWER BY J AS TORDILLO
13. Could be defined as simply push or pull.
A. work
B. force (ANS)
C. inertia
D. power
14. The differential of the shear equation is
which one of the following:
A. bending moment of the beam
B. tensile strength of the beam
C. slope of the elastic curve
D. load of the beam (ANS)
lS. Gear used to transmit power at high
velocity ratios between non-intersecting
shafts that are usually but not necessarily at
right angle.
A. helical gear
B. bevel gear
C. worm gear (ANS)
D. spiral gear
16. The ratio of the moment of inertia of
the cross section of the beam to the section
modulus:
A. equal to the radius of gyration
B. equal to the area of the cross section
C. measure of a distance (ANS)
D. dependent on the modulus of elasticity
of beam measure
17. Opposite direction parallel forces:
A. concurrent
B. coplanar
C. couple (ANS)
D. non-coplanar
18. Which of the following is the structural
class of steel?
A. high speed steel
B. tool and die (ANS)
C. low carbon
D. high carbon
19. Continuous stretching under load even
if the stress is less than the yield point:
A. plasticity
B. elasticity
C. creep (ANS)
0. ductility
20. It is recommended for high speed
application that the minimum number of
teeth in small sprocket should be:
A. 26 to 30
B. 12 to16
C. 26 to 28
D. 18 to 24 (ANS)
21. In gear design, the ratio of pitch
diameter in inches to the number of teeth:
A. module
B. diametral pitch
C. English module (ANS)
D. circular
22. The concave portion of the profile
where it joins the bottom of the tooth
space:
A. fillet curve (ANS)
B. fillet radius
C. bottom curve
o. fillet
23. The distance of the tooth which is equal
to the addendum and dedendum:
A. full
B. whole depth (ANS)
C. working depth
D. dedendum
24. Stresses that are independent of loads:
A. working stress
B. operating stress
C. residual stress (ANS)
D. shear stress
25. It is used to change rotary motion to
reciprocating motion:
A. helical gear
B. rack gear (ANS)
C. worm gear
D. spur gear
26. it is recommended not to have a direct
drive and sprockets if the ratio of their
teeth exceeds use two or more
step combination.
A. lOtimes
B. 8 times (ANS)
MODULE 1 - E
C. S times
D. 6 times
27. The motion of an
diminished/decreased speed:
A. deceleration
B. all of the above
0. negative impulse
28: Most popular soldering materi<
A. 10/80
B. 45/55
C. 50/50 (ANS)
0. 60/40
29. The following pertain to j<
metals except:
A. welding
B. soldering
C. casting (ANS)
D. brazing
30. Killed steel is always associate1
A. silicon (ANS)
B. manganese
C. phosphorous
0. sulfur
31. The usual ratio of water to s.i
used as cutting fluid:
A. 50% water to 50% oil
8. 2 water to 1 oil
C. 3 water to 1 oil
D. 4 to 80 water to 1 oil (ANS)
32. The good deoxidizer in steel m1
A. manganese
B. silicon
D. aluminum
33. Good stabilizer in stainless ste
A. columbium
B. titanium
0. tantalium
34. What is/are the common cut1
used for cutting metals?

41. Endurance strength is nearly
proportional to the ultimate strength but
not with ______
A. yield strength (ANS)
B. design stress
C. shear stress
D. all of the above
42. A furnace used in melting non-ferrous
metals:
A. cupola furnace
B. crucible furnace
C. induction furnace (ANS)
D. normalizing furnace
43. Alloy that improves strength of steel at
high temperature application:
A. tungsten
B. molybdenum
D. chromium
44. In a gear design, the total work load
must be equally shared by its arms. Rim
must be rigid to support these arms and
also the bead is recommended for its
stiffening value. The assumption in the
detailed design of rim thickness and depth
of bead is ___ circular pitch.
A. 0.65
B. 0.50
C. 0.56 (ANS)
D. 0.44
45. Tooth width measured along the chord
at the pitch circle:
A. flank
B. face width
C. width of space
D. chordal thickness {ANS)
46. The best instrument for measuring a
thousand of an inch:
A. Micrometer (ANS)
B. Tachometer
C. Caliper
D. Pyrometer
47. All are associated with standard
material specification, EXCEPT:
A. American Iron and Steel Institute
B. Society of Automotive Engineers
C. Southeast Asia Iron and Steel Institute
(ANS)
D. American Society for Testing Materials
48. The allowable stresses that are
generally used in practice are 4 ksi for main
power transmitting shaft, 6 ksi for lineshaft
carrying pulleys and 8.5 ksi for small, short
shaft/countershaft, etc. With these
allowable stresses what will be simplified
formula to determine transmitted HP
diameter of the shaft or even the rpm(N)?
A. HP =D
3
N/80
B. HP = D
3
N/53.S
D. HP = D
3
N/38
49. Machine tool used for laying straight
lines on metal surfaces made of sharp tool
steel is called:
A. plain scriber (ANS)
B. a trammel
C. hermaphrodite
D. divider
SO. It is the difference of addendum and
dedendum which is equivalent to the whole
depth less working depth.
A. fillet space
B. fillet radius
C. clearance (ANS)
D. backlash
51. A lathe machine threading mechanism:
A. reverse gear and lever
B. spindle gear (ANS)
C. all of these
D. change stud gear
52. Separate forces which can be so
combined are called:
A. non-concurrent forces
B. couple
C. combined forces
D. concurrent forces (ANS)
MODULE 1
53. That property of matter w
resist any change in its motit
est:
- brake
:; friction
:. inertia (ANS)
;J. impulse
54. Negative allowance is also 1
~ interference of metal (ANS)
3 clearance
:::.. advance
:J. allowance of positive fit
55. Which of the following is
·esemble the shape of tool bit?
"'" round nose
6. center cut (ANS)
C square nose
9. thread cutting
56. A kind of thread in which
he thread is approximately e
depth of the thread and the sp;
threads are approximately equa
A. square thread (ANS)
B. acme thread
C. buttress thread
D. whitworth thread
57. A shaft is to be c
concentricity. A suitable
performing the check is:
A. bench centers and dial indic
B. bench bottom and caliper
C. bench top and tachometer
D. bench vise and planer
58. For moderate speed of m
the ideal ratio of contact is:
A. 1.25 - 4 {ANS)
B. 1.2 -1.45
c. 1.0-1.3
D. 1.35 -1.45
59. Nominal diameter of bolts i!
A. major diameter (ANS)
B. minor diameter
C. mean diameter
D. average diameter
60. A lathe wit h multiple cuttin!

TORDILLO
'lStitute
~ gineers
d Steel Institute
:sting Materials
tresses that are
are 4 ksi for main
6 ksi for linesha"-
;s or small, shor:
With these
,; be simplifiea
ansmitted HP
en the rpm(N)?
r aying straig· :
aee of sharp too
c' addendum a c
ra" to the wh e
ea g mechan.s
ch can be ~
S3. That property of matter which causes it
to resist any change in its motion or state of
rest:
A. brake
B. friction
C. inertia (ANS)
0. impulse
54. Negative allowance is also called:
A. interference of metal (ANS)
B. clearance
C. advance
0. allowance of positive fit
SS. Which of the following is not used to
resemble the shape of tool bit?
A. round nose
B. center cut (ANS)
C. square nose
D. thread cutting
S6. A kind of thread in which the width of
the thread is approximately equal to the
depth of the thread and the space between
threads are approximately equal.
A. square thread (ANS)
B. acme thread
C. buttress thread
D. whitworth thread
57. A shaft is to be checked for
concentricity. A suitable method of
performing the check is:
A. bench centers and dial indicator (ANS)
B. bench bottom and caliper
C. bench top and tachometer
D. bench vise and planer
58. For moderate speed of mating gears,
the ideal ratio of contact is:
A. 1.25 - 4 (ANS)
B. 1.2 -1.4S
c. 1.0-1.3
D. 1.35 -1.4S
59. Nominal diameter of bolts is the:
A. major diameter (ANS)
B. minor diameter
C. mean diameter
D. average diameter
60. A lathe with multiple cutting stations:
A. turret lathe (ANS)
B. lathe machine
C. milling machine
D. grinding machine
61. Major and minor diameters are
commonly used in:
A. screw thread (ANS)
B. bolts
C. gear
0. all of these
62. The distance a helical gear or worm
would thread along its axis in one
revolution if it were free to move axially is
called:
A. length of action
B. line of action
C. land
D. lead (ANS)
63. Length of contact between two mating
parts in a screw and nut threads meas1,1red
axially is called:
A. arc of contact
B. depth of engagement (ANS)
C. length of engagement
D. axis of contact
64. If the velocity of a mass is the same all
the time during which motion takes place is
called:
A. deceleration
B. uniform motion (ANS)
C. acceleration
D. none of these
65. Device used to measure accurately
speed:
A. speedometer
B. dial indicator
C. tachometer (ANS)
D. dial gauge
66. When the hole is smaller than the shaft,
it will take pressure to put the parts
together. The allowance is said to be
negative and is termed as:
A. negative tolerance
B. negative allowance

RDILLO
s.;ally do the
e ed and the
excessive or
e point of
c 1
ded by the
a (ANS)
IS ltant of all
time that
g is not a
'of.
e strain
~strain
I limit (ANS)
imit
e grade of
•••
80. The property of material which relates
the lateral strain to the longitudinal strain:
A. stress
B. strain
C. Poisson's ratio {ANS)
D. strength
81. The maximum stress to which a
material may be subjected before failure
occurs:
A. ultimate strength
B. ultimate stress (ANS)
C. endurance limit
D. tensile stress
82. Hypoid gear is a special type of gear
like:
A. worm gear
B. spur gear
C. herringbone gear
D. bevel gear (ANS)
83. Considered a maximum safe center
distance of sprockets should be __
pitches. Very long center distance cause
catenary tension in the chain.
A. 70
B. 80 (ANS)
c. 60
D. 50
84. Cold working of steel plates makes the
metal:
A. tougher
B. more ductile
C. harder (ANS)
D. more malleable
85. Recommended best cutting angle of
drill for work on steel or cast iron is
____ degrees.
A. 48
B. 63
C. 59 (ANS)
D. 50
86. In shear pin or breaking pin design, we
may use the data experienced by link-belt
for 1/8 inch to 1 pin and the breaking stress
is ksi.
A. 40
B. 55
C. 50 (ANS)
D. 48
87. Deals only with the motion of bodies
without reference to the forces that causes
them:
A. dynamics
B. kinetics
C. statics
D. kinematics (ANS)
88. the property that characterizes a
material ability to be drawn into a wire:
A. ductility (ANS)
B. thermal conductivity
C. tensile strength
D. endurance limit
89. The three-moment equation may be
used to analyze:
A. tapered column
B. continuous beam (ANS)
C. composite beam
D. axially end loaded beam
90. What is the common shop practice to
prevent solder from running away from its
surface to be joined?
A. all of these (ANS)
B. surround the work with clay
C. introduce around the work rolled with
cloth
D. put asbestos sheeting around the work
91. Non-ferrous filler metal is melted into
grooves or as fillet on the mother metal;
the base metal is not melted. This
commonly used for joining iron based
machine parts or in repair works of some
materials. It is called:
A. spot welding
B. braze welding (ANS)
C. brazing
D. gas welding
92. It is advised that in rubber belts
application/mounting, it should have an
initial tension of inch/ply.

••• MACHINE DESIGN REVIEWER BY JAS TORDILLO
C. negative fits
D. interference of metal (ANS)
67. When two elastic bodies collide, which
of the following laws can be used to solve
for the resulting velocity?
A. Dalton's law
B. Avogradro
C. Conservation of energy
D. Conservation of momentum and
Conservation of energy (ANS)
68. The ability of a metal to be deformed
considerably without rupture is called:
A. Plasticity (ANS)
B. all of these
C. Ductility
D. Malleability
69. Permanent deformation or strain may
occur without fracture:
A. malleability
B. elasticity
C. ductility
D. plasticity (ANS)
70. It is the science of motion that can be
solved in terms of scalar or vector algebra:
A. Kinematics (ANS)
B. curvilinear translation
C. projectiles
D. acceleration
71. A system of forces in space is in
equilibrium. If two equal and opposite
collinear forces are added, which of the
following if any is true?
A. equilibrium is destroyed
B. equilibrium is maintained (ANS)
C. none of these is true
D. an unbalance of moment exist
72. Metal that assists lubrication or
lubricant itself:
A. zinc
B. antimony
C. Babbitt (ANS)
D. lead
73. A mechanism which is usually do the
indexing in a machine tool:
A. universal chuck
B. slotter
C. dividing head (ANS)
D. indexing
74. It equalizes the energy exerted and the
work done thus preventing excessive or
sudden changes of speed:
A. flywheel
B. balance wheel
D. flywheel pulley
75. The smallest area at the point of
rupture of a tensile specimen divided by the
original area is called:
A. percentage elongation
B. lzod test
C. Charpy test
D. Percentage reduction of area (ANS)
76. The product of the resultant of all
forces acting on a body and the time that
the resultant acts:
A. angular impulse
B. angular momentum
C. linear impulse (ANS)
D. linear momentum
77. Which of the following is not a ·
structural class of steel?
A. low carbon steel
B. tool and die steel (ANS)
C. high chrome alloy steel
D. high strength low alloy steel
78. Poisson's ratio is the ratio of:
A. shear strain to compressive strain
B. elastic limit to compressive strain
C. lateral strain to longitudinal limit (ANS)
D. elastic limit to proportional limit
79. All are associated with the grade of
steel, EXCEPT:
A. SAE 43XX
B. SAE 13XX
C. SAE lOXX
D. SAE 74XX (ANS)
MODULE 1 - ELEME
. The property of material which relat
:. e lateral strain to the longitudinal strain
"' stress
3. strain
:. Poisson's ratio (ANS)
) . strength
31. The maximum stress to whic
material may be subjected before fa
occurs:
"- ultimate strength
3. ultimate stress (ANS)
C. endurance limit
;). tensile stress
82. Hypoid gear is a special type of ge
ike:
A. worm gear
B. spur gear
C. herringbone gear
D. bevel gear (ANS)
83. Considered a maximum safe cen
distance of sprockets should be __
pitches. Very long center distance caU!
catenary tension in the chain.
A. 70
B. 80 (ANS)
c. 60
D. 50
84. Cold working of steel plates makes
metal:
A. tougher
B. more ductile
C. harder (ANS)
D. more malleable
85. Recommended best cutting angle c
drill for work on steel or cast iron
____ degrees.
A. 48
B. 63
C. 59 (ANS)
D. 50
86. In shear pin or breaking pin design,
may use the data experienced by link-be
for 1/8 inch to 1 pin and the breaking stres
is ksi.

MACHINE DESIGN REVIEWER BY J AS TORDILLO
A. 18 to 24
B. 15 to 20 (ANS)
c. 12 to 15
0. 10
93. Normal stress relieving temperature for
cast steel:
A. 200 to 350°F
B. 400 to 500, F
C. 300 to 400°F
0. 450 to 550°F (ANS)
94. Most effective alloying element for
reducing brittleness of steel at very low
temperature:
A. manganese
B. molybdenum
C. silicon
D. nickel (ANS)
95. Statement that a given body is in static
equilibrium means that the body cannot:
A. have any type of motion (ANS)
B. be acted upon by more than one force
C. undergo any displacement
D. have any acceleration
96. Ordinary steel begins to lose strength
and elasticity significantly at about
___ •F.
A. 900-1000
B. 800-900
c. 750 - 850
0. 600- 700 (ANS)
97. Clearance to a new boiler installation to
the existing or old plant building should
follow a minimum clearance of ___
between top of the boiler proper and the
ceiling as stated in the PSME Code.
A. 2000 mm (max)
B. 1000 mm (max)
C. 2130 mm (max) (ANS)
0. 2150 mm (max)
98. For a high corrosion resistant stainless
steel, what minimum chromium content is
required?
A. 8% (ANS)
B. 4.3%
c. 1.1%
0 . 5.8%
99. V-belts operate efficiently at speed of
about:
A. 4500 (ANS)
B. 4400
c. 4200
0. 3600
100. What type of gear is used for high
speed operation?
A. helical (ANS)
B. spur
C. bevel
D. worm
MODULE 2 - EL
MODULE
_ 'l a pair of gears, _____
- .a'le perpendicular to the axial pla
".:a"'gent to the pitch surface.
prtch
:. pitch plane (ANS)
- pitch circle
; pitch point
The phenomenon of cont
stretching under load even if the S'
ess than the yield point:
elasticity
3. ductility
c. plasticity
O. creep (ANS)
3. The machinery operation whereb•
with the work accurately fastened
reciprocating (forward and bad
motion and the tool head is stationa11
A. shaping
B. planing (ANS)
C. turning
0. reaming
4. Finding the resultant of two or
forces is called:
A. coplanar forces
B. non - coplanar
C. couple
O. composition (ANS)
5. The capacity of metal to withstam
without breaking is:
A. strength (ANS)
B. stress
C. elasticity
0. strain
6. Outstanding safety record contri
to:
A. High productivity and quality of wor
B. Outstanding performance that ex
reward from management

DRDILLO
a speed of
..sed for high
•••
MODULE 2
1. In a pair of gears, is the
plane perpendicular to the axial plane and
tangent to the pitch surface.
A. pitch
B. pitch plane (ANS)
C. pitch circle
0. pitch point
2. The phenomenon of continuous
stretching under load even if the stress is
less than the yield point:
A. elasticity
B. ductility
C. plasticity
D. creep (ANS)
3. The machinery operation whereby done
with the work accurately fastened has a
reciprocating (forward and backward)
motion and the tool head is stationary.
A. shaping
B. planing (ANS)
C. turning
D. reaming
4. Finding the resultant of two or more
forces is called:
A. coplanar forces
B. non - coplanar
C. couple
D. composition (ANS)
5. The capacity of metal to withstand load
without breaking is:
A. strength (ANS)
B. stress
C. elasticity
D. strain
6. Outstanding safety record contributes
to:
A. High productivity and quality of work
B. Outstanding performance that expects
reward from management
C. Confidence in foremen's ability to
perform well
D. Pride and enthusiasm to one-self (ANS)
7. A type of coupling that allows slight
amount of torsional/angular flexibility due
to introduction ~ith some elastic material
cylindrically wrapped around the bolts in
the flange.
A. simple elastic bonded coupling
B. elastic-material bushed coupling (ANS)
C. elastic material bonded coupling
D. all of these
8. In a uniformly loaded beam, the
maximum vertical shearing force occurs
A. at the center
B. at the section of maximum moment
C. at beam bottom fiber
D. at either end support (ANS)
9. Copper and most of Its alloys can be
hardened by:
A. patenting
B. cold working (ANS)
C. case hardening
D. soaking
10. What happens to a drill if the operating
speed is too fast?
A. drill will crack
B. drill will become overheated and will
bend
C. drill will become overheated and will be
drawn from the steel (ANS)
D. drill will become ~ery dull and wear dust
11. Which of the following is not a
structural steel class?
A. low carbon steel
B. stainless steel
C. medium carbon steel
D. tool and die steel (ANS)
12. The section modulus of a rectangle of
base "b" and height "h" about its base is:
A. bh
2
/6 (ANS)
B. bh
3
/3
c. bh
2
/12

••• MACHINE DESIGN REVIEWER BY J AS TORDI LLO
D. bh
3
/12
13. A material that should be avoided in
constructing wood pattern:
A. sap wood (ANS)
B. kiln dried wood
C. heart wood
D. core portion of wood
14. The gradual chemical reaction by other
substance such that metal is converted to
an oxide or other compounds:
A. corrosion (ANS)
B. Cheaping
C. Rusting
D. Weathering
15. The center of gravity of a solid pyramid
or cone with a total height of H is:
A. X H (ANS)
B. 3/5 H
C. 1/3 H
D. Y, H
16. Which do not belong to foundry or
metal casting shop?
A. shake-out machine
B. molding machine
C. coremaking
D. forging machine (ANS)
17. What is the property of a material
which resists forces acting to pull the
material apart?
A. shear strength
B. tensile strength (ANS)
C. torsional strength
D. compressive strength
18. The reciprocal of diametral pitch
equivalent to the ratio of pitch diameter to
the number of teeth:
A. lead
B. clearance
C. module (ANS)
D. involute
19. What is the difference between brass
and bronze?
A. Brass is composed of copper and zinc
while bronze is composed of copper and
tin (ANS)
B. Brass is composed of copper and zinc
while bronze is basically copper and tin plus
non-ferrous alloy such as manganese
aluminum and chromium.
C. Bronze is reddish in color while brass is a
mixture of copper and antimony
D. Bronze is mostly an alloy of copper and
tin while brass is a mixture of copper ano
antimony.
20. The first derivative with respect to
velocity of kinetic energy is:
A. power
B. energy
C. momentum (ANS)
D. none of these
21. The arbitrary modification by removing
a small portion of a tooth material at the tip
of the gear tooth is called:
A. tip removal
B. tip undercut
C. tip relief (ANS)
D. pressure angle cut
22. Types of v-belts to use in a driving
pulley with speed of 360 rpm and
transmitting 5 hp:
A. Type Cbelts
B. Type B belts (ANS)
C. Type A belts
D. Type D belts
23. What type of gears that can transmit
power at an angle?
A. helical gear
B. worm gear
C. bevel gear (ANS)
D. herringbone gear
24. A liquid metal:
A. Mercury (ANS)
B. Lead
C. Zinc
D. Aluminum
MODULE 2 - E
-~- An object thrown upward wil
!2rth with the magnitude of thE
~ ocity equal to:
zero
= one-half of the initial velocity
::. twice the initial velocity
::>. the initial velocity (ANS)
:s. Used in conjunction with ciri
sectional members to retain oil ar
::lit, foreign particles, moistur
:iermit pressure differential
exterior and interior of the applie
A. Seal (ANS)
B. Gasket
C. Safety shield
D. Packing
27. Commonly used in pa
transmission especially when ,
continuous section is essential
speed drives up to 12,000 fpm:
A. bevel gear
B. herringbone gear (ANS)
C. spur gear
D. helical gear
28. The hardness of h1
herringbone gear teeth a·
treatment is 210 to 300 Brinell
for gear and pinion is at:
A. 360 Brinell min
B. 400 Brinell max
C. 340 - 360 normally (ANS)
D. all of the above
29. The path of contact in inv
where the force/power
transmitted. It is a straight im
passing through the pitch point ;
to the base circle.
A. principle reference plane
B. pitch point
C. front angle
D. line of action (ANS)
30. What is the difference
shaper and a planer?

a c
.. :: ....s
~s s a
;: ::
a -
•••
25. An object thrown upward will return to
earth with the magnitude of the terminal
velocity equal to:
A. zero
B. one-half of the initial velocity
C. twice the initial velocity
D. the initial velocity (ANS)
26. Used in conjunction with circular cross
sectional members to retain oil and prevent
dirt, foreign particles, moisture and to
permit pressure differential between
exterior and interior of the applied part:
A. Seal (ANS)
B. Gasket
C. Safety shield
D. Packing
27. Commonly used in parallel-shaft
transmission especially when a smooth,
continuous section is essential as in high
speed drives up to 12,000 fpm:
A. bevel gear
B. herringbone gear (ANS)
C. spur gear
D. helical gear
28. The hardness of helical and
herringbone gear teeth after heat
treatment is 210 to 300 Brinell Hardness,
for gear and pinion is at:
A. 360 Brinell min
B. 400 Brinell max
C. 340 - 360 normally (ANS)
D. all of the above
29. The path of contact in involute gears
where the force/power is actually
transmitted. It is a straight imaginary line
passing through the pitch point and tangent
to the base circle.
A. principle reference plane
B. pitch point
C. front angle
D. line of action (ANS)
30. What is the difference between a
shaper and a planer?
A. the tool of the shaper moves while on
the planer is stationary (ANS)
B. the shaper can perform slotting
operation while the planer cannot
C. the shaper handles large pieces while
the planar handles only small pieces
D. the tool of the shaper moves in
reciprocating motion while the tool in the
planar moves in rotary motion
31. What is the metal characteristics to
withstand forces that cause twisting?
A. torsional strength (ANS)
B. modulus of elasticity
C. twisting moment
D. elasticity
32. In greater quantity this element is
harmful to the ferrous metal:
A. Sulfur (ANS)
B. Silicon
C. Zinc
D. Aluminum
33. To prevent leakage in dynamic seal:
A. gaskets
B. seals
C. felts
D. packings (ANS)
34. It has molybdenum alloy except:
A. SAE 43xx
B. SAE 41xx
C. SAE 6xxx (ANS)
D. SAE 2xxx
35. A type of gear tooth cut inside a
cylinder or ring:
A. rack gear
B. ring gear
C. miter gear
D. internal gear (ANS)
36. Flexible material used to seal
pressurized fluids, normally under dynamic
condition:
A. nylon
B. seal
C. teflon

D. packing (ANS)
37. Cast alloy steel for very high
temperature application:
A. manganese-nickel steel castings
B. high chrome steel casting
C. chrome-nickel steel castings (ANS)
D. high manganese casting
38. What heat treatment process can cast
steel materials of high chrome, high
manganese, etc. type of stele be subjected
for the purpose of machining process?
A. Annealing (ANS)
B. Tempering
C. Normalizing
D. Quenching
39. Galvanized steel plate is a plate coated
with:
. A. Aluminum
B. nn
C. Zinc (ANS)
0. Manganese
40. Major component of bronze casting:
A. Copper (ANS)
B. Manganese
C. Zinc
0. Lead
41. Split pulley or pulley made of separate
sections bolted together at the rim, the
maximum speed should be limited to about
% of the maximum speed of solid
pulley.
A. 65 to 75%
B. 45 to 50%
C. SS to 60% (ANS)
0. 80to 90%
42. Fillet radius in machine parts is usually
introduced to:
A. improve the look of the parts
B. reduce concentration of stress and
extend life of the parts (ANS)
C. to avoid obstruction
D. necessary to lessen casting weights
43. Type of bolt commonly used in the
construction that is threaded in both ends:
A. stud bolts (ANS)
B. acme threaded bolts
C. square threaded bolts
D. hex bolts
44. Heating of the metal to a temperature
above the critical temperature and then
cooling slowly usually in the furnace to
reduce the hardness and improve the
machinability is called:
A. Annealing (ANS)
B. Tempering
C. Normalizing
0. Quenching
45. A hydrostatic bearing is one which:
A. the lube oil Is supplied under pressure
(ANS)
B. lube oil is not pressurized
C. there is no lube oil
0. bearing is lightly loaded
46. One of the following materials is
unsuitable as a bearing:
A.Teflon
B. Low carbon steel (ANS)
C. Cast iron
D. Nylon
47. Safety features that must be placed and
maintained at machine, blacksmith, welding
and foundry shop:
A. safety goggle
B. walkaway guide
C. safety notices in markings (ANS)
D. all of these
48. The angle, at the base cylinder of an
involute gear, that the tooth makes with
the gear axis:
A. base helix angle (ANS)
B. pressure angle
C. arc of recess
D. arc of approach
49. A kind of thread that is generally used:
A. UNEC
B. UNC (ANS)
C. UNF
0. UNEF
MODULE 2 - ELEMEN1
SO. Which is not the generally used
standard:
A. ASTM
B. SAE
C. IPS (ANS)
0. AISI
51. Alloy steel known for its resistance to
corrosion, abrasion and wear that is usually
ideal for mill grinding of ore in cement and
concentrator application. It is usually
combined with molybdenum to increase
the depth hardening:
A. manganese chromium steel
B. chromium molybdenum steel (ANS)
C. chrome-nickel-moly steel
D. manganese-moly steel
52. Commonly utilized/cheapest shaft
material available in the market w·
carbon content of 0.28 to 0.34%C.
A. SAE 4132
B. SAE 4320
C. SAE 1030 (ANS)
0. SAE 4130
53. In a pair of gears it is the plane tha
contains the two axis, in single gear, it ma
be any plane containing the axis and the
given point.
A. axial plane (ANS)
B. pitch plane
C. normal plane
D. all of the above
54. Accident prevention is:
A. an association of employers,
organization and individuals
B. a job of a safety director
C. the foreman's responsibility just ii!
much as production (ANS)
D. the responsibility of top management

MODULE 2 - ELEMENTS IN MACHINE DESIGN ..,
A. UNEC
B. UNC (ANS)
C. UNF
D. UNEF
SO. Which is not the generally used
standard:
A. ASTM
B. SAE
C. IPS (ANS)
D. AISI
Sl. Alloy steel known for its resistance to
corrosion, abrasion and wear that is usually
ideal for mill grinding of ore in cement and
concentrator application. It is usually
combined with molybdenum to increase
the depth hardening:
A. manganese chromium steel
B. chromium molybdenum steel (ANS)
C. chrome-nickel-moly steel
D. manganese-moly steel
52. Commonly utilized/cheapest shaft
material available in the market with
carbon content of 0.28 to 0.34%C.
A. SAE 4132
B. SAE 4320
C. SAE 1030 (ANS)
D. SAE 4130
53. In a pair of gears it is the plane that
contains the two axis, in single gear, it may
be any plane containing the axis and the
given point.
A. axial plane (ANS)
B. pitch plane
C. normal plane
D. all of the above
S4. Accident prevention is:
A. an association of employers,
organization and individuals
B. a job of a safety director
C. the foreman's responsibility just as
much as production (ANS)
D. the responsibility of top management
55. Heating of metal above the critical
temperature and then cooling slowly
usually in the furnace to reduce the
hardness and improve the machinability is
called:
A. normalizing
B. annealing (ANS)
C. tempering
D. quenching
56. A type of welding whereby a wire or
powder from the nozzle of a spray gun is
fused by a gas flame, arc or plasma jet and
the molten particles are projected in a form
of a spray by means of compressed air or
gas.
A. electro-slug welding
B. electro-beam welding
C. plasma-arc welding
D. metal spray welding (ANS)
57. Killed steel is very much associated
with:
A. manganese
8. sulphur
C. phosphorous
D. silicon (ANS}
S8. The concave portion of the tooth
profile where it joins the bottom of the
tooth space.
A. fillet curve (ANS)
B. fillet
C. undercut
D. plane
59. The length of arc between the two
sides of a gear tooth on the pitch circle:
A. circular thickness (ANS}
B. axial plane
C. helix angle
D. chordal angle
60. It is hardening treatment whereby a
cast metal is being heated to a very high
temperature then suddenly subjected to
rapid cooling to improve hardenability or
wear resistance is called:
A. normalizing

B. tempering
C. quenching (ANS)
D. annealing
61. To reduce cost in the manufacturing of
large worm gears the materials to utilize:
A. alloyed aluminum rim with cast iron
spider
B. bronze rim with cast steel spider (ANS)
C. all of these
D. cast iron rim with bronze spider
which one of the following:
A. bending moment of the beam
B. load of the beam (ANS)
C. tensile strength of the beam
D. slope of the elastic curve
63. SAE steel that responds to heat
treatment:
A. SAE 1060
B. SAE 1117 (ANS)
C. SAE 1030
D. SAE 1020
64. A circle bounding the bottoms of the
teeth:
A. addendum circle
B. addendum cylinder
C. pitch circle
D. dedendum circle {ANS)
65. A unit deformation is called:
A. torsion
B. strain (ANS)
C. stress
D. shear
66. An oil storage roof formed to
approximately a spherical surface,
supported only at its periphery:
A. self-supporting umbrella roof {ANS)
B. self-supporting cone roof
C. self-supporting
D. supporting cone roof
67. Test sometimes referred to as an
upsetting test:
A. bend (ANS)
B. flaring
C. flange
D. crush
68. An oil storage roof formed to
approximately the surface of a right cone,
supported only at its periphery:
A. self-supporting umbrella roof
B. self-supporting doem roof
C. supported cone roof
D. self-supporting cone roof (ANS)
69. Have the same thermal and minimum
film thickness limitation as sleeve bearing:
A. ball bearing
B. roller bearing
C. thrust bearing (ANS)
D. oil whip
70. Test is designed primarily for
application to electric-welded tubing for
detection of lack of penetration or overlaps
resulting from flash removal in the weld:
A. butt weld
B. paste
C. lap weld (ANS)
D. double butt weld
71. Is a form of correction that develop on
a highly localized areas on a metal surfac~:
A. crevice
B. erosion
C. galvanic
D. apltting (ANS)
72. The deterioration of organic coating
characterized as completely:
A. chalking (ANS)
B. rusting
C. checking
D. fritting
73. A gear is one which is 90 deg that is the
pitch cone has become a plane:
A. angular gear
B. crown gear (ANS)
C. miter gear
D. spiral bevel gear
MODULE 2 - ELEMEN:l
74. A machine used for the testing of ve
thin steel or surface layers:
A. Charpy test
B. lzod test
C. Description
D. Rockwell superficial {ANS)
75. A cone formed by elements which are
perpendicular to the elements of the p·
cone at the large end:
A. cone distance
B. back cone (ANS)
C. root cone
D. cone center
76. The temperature above which the all
is liquid and will run:
A. melting point {ANS)
B. flow point
C. pour point
D. liquidus
77. A weld made to hold the parts of a
weldment in proper alignment until e
final welds are made:
A. butt weld
B. tack weld (ANS)
C. fillet weld
D. full fillet weld
78. Is used to enable milling machine to
take climb milling cuts:
A. helical driving mechanism (ANS)
B. spindle
C. read out
D. backlash eliminator
79. The total amount of permanent
extension of the gage length measured
after the specimen has fractured and is
expressed as percentage increase of the
original gage length:
A. elongation (ANS)
B. strain
C. stress
D. elastic limit

0
ed :o
p on
ce:
is the
--
74. A machine used for the testing of very
thin steel or surface layers:
A. Charpy test
B. lzod test
C. Description
0. Rockwell superficial (ANS)
75. A cone formed by elements which are
perpendicular to the elements of the pitch
cone at the large end:
A. cone distance
B. back cone (ANS)
C. root cone
0. cone center
76. The temperature above which the alloy
is liquid and will run:
A. melting point (ANS)
B. flow point
C. pour point
D. liquidus
77. A weld made to hold the parts of a
weldment in proper alignment until the
final welds are made:
A. buttweld
B. tack weld (ANS)
C. fillet weld
0. full fillet weld
78. Is used to enable milling machine to
take climb milling cuts:
A. helical driving mechanism (ANS)
B. spindle
C. read out
D. backlash eliminator
79. The total amount of permanent
extension of the gage length measured
after the specimen has fractured and is
expressed as percentage increase of the
original gage length:
A. elongation {ANS)
B. strain
C. stress
D. elastic limit
80. It refers to any layer or deposit of
extraneous material on a heat-transfer
surface:
A. low line
B. pressure drop
C. fouling (ANS)
D. scaling
81. Steels containing large amounts of mild
nickel and chromium:
A. carbon steel
B. stainless steel {ANS)
C. alloy steel
D. cast steel
82. The corrosion of iron or iron-base-
alloys:
A. rusting (ANS)
B. crazing
C. chalking
D. fritting
83. The ratio of stress to the corresponding
strain below the proportional limit
A. stress-strain diagram
B. gage method
C. modulus of elasticity (ANS)
D. tensile st rength
84. A fillet weld whose size is equal to the
thickness of the thinner joint member:
A. butt weld
B. tack weld
C. lapweld
D. full-fillet weld (ANS)
85. A bevel gear of the same size mounted
on a shafts at 90 deg:
A. crown gear
B. spur gear
C. angular gears
D. miter gears {ANS)
86. Gearing in which the motion or power
that is transmitted depenqs upon the
friction between the surface in contact:
A. bevel cones
B. spur friction wheels

MACHINE DESIGN REVIEWER BY JAS TORDILLO
C. evans friction cones
0 . friction gearing (ANS)
87. Wheels are sometimes used for the
transmission of high power when an
approximately constant velocity ratio is
desired:
A. bevel cones
B. friction gearing
C. spur friction wheels (ANS)
D. evans friction cones
88. A corrosion occurs within the or
adjacent to a crevice formed by contact
with another piece of the same or another
metal:
A. pitting
B. galvanic (ANS)
C. erosion
D. crevice
89. A weld of approximately triangular
cross-section that join two surface at
approximately right angles as in lap joint,
tee-joint, corner joint:
A. single welded lap joint
B. fillet weld (ANS)
C. tack weld
D. buttweld
90. An alloy of tin, copper, antimony, or
sometimes lead:
A. gold
B. babbitt (ANS)
C. aluminum
D. cast iron
91. A weld place in a groove between two
abutting members:
A. full-fillet weld
B. tack weld
C. butt weld (ANS)
D. fillet weld
92. A test for pipe used for coiling in sizes 2
inches:
A. flaring
B. crush
C. flange
0. bend (ANS)
93. The follower reciprocates or oscillates
in a plane parallel to the axis of rotation:
A. cam curves
B. cylindrical cam (ANS)
C. tangential cam
D. radial cam
94. Strength of a material that is of a stress
intensity determined by considering the
maximum test load to act over the original
area of the test specimens:
A. yield point
B. ultimate strength (ANS)
C. breaking strength
D. elastic limit
95. The follower reciprocates or oscillates
in a plane perpendicular to the axis of
rotation of the cam:
A. cam curves
B. cylindrical cam
C. tangential cam
O. radial cam (ANS)
96. Impacts of reciprocating motion to a
single-point cutting tool:
A. dividing head
B. slotting attachment (ANS)
C. circular pitch
D. circular milling attachment
97. A joint between two overlapping
members in which the overlapped edge of
one member is welded with a fillet weld:
A. a single welded lap joint (ANS)
B. double-welded lap joint
C. a single-welded lap joint with backing
D. tack weld
98. Weld-metal impact specimen shall be
taken across the weld face substantially
parallel to and within:
A. Y. in
B. 1/32 in
C. Y. in (ANS)
D. 1/16 in
MODULE 2 - ELEMENTS
99. The maximum stress which is reached
during a tension test:
A. stress
B. elasticity
C. strain
0. tensile strength (ANS)
100. If gears cannot connect parallel shafts,
they are called:
A. cycloidal gears (ANS)
B. helical gears
C. spur gears
0 . toothed gears

99. The maximum stress which is reached
during a tension test:
A. stress
B. elasticity
C. strain
D. tensile strength (ANS)
100. If gears cannot connect parallel shafts,
they are called:
A. cycloidal gears (ANS)
B. helical gears
C. spur gears
D. toothed gears
•••

•••
MODULE 3
1. The size of an equal-leg length fillet weld
shall be based on the length of the largest:
A. Isosceles right triangle {ANS)
B. square
C. right triangle
D. rectangle
2. Milling machine accessories are used to
hold milling cutter in the milling machine:
A. spindle-nose tooling
B. milling machine vise
C. vertical milling attachment
O. milling machine arbors
3. The cheapest and the most abundant
engineering material:
A. steel
B. aluminum
C. cast iron (ANS)
D. babbitt
4. They are usually the steel or steel
casting:
A. mild steel
B. carbon steel {ANS)
C. firebox steel
D. drop-forge-dies
5. An important accessories of milling
machines:
A. milling machine vise
B. cutters {ANS)
C. ram
D. vertical milling attachment
6. Gears used to transmit power between
shafts axis of which intersect:
A. spur gear
B. bevel gear (ANS)
C. helical gear
D. straight gear
7. An Iron has physical properties closely
resembling those of mild steel:
A. malleable cast iron (ANS)
B. malleable iron
C. white iron
D. gray iron
8. The space between the adjacent teeth:
A. tooth
B. backlash
C. flank
D. width (ANS)
9. An iron in which most of the carbon is
chemically combined with the iron:
A. cast iron
B. gray iron
C. white iron (ANS)
D. malleable iron
10. A machine used in testing steel
generally strike the specimen with an
energy from 220 to 265 ft-lb:
A. lzod test
B. Charpy test (ANS)
C. Rockwell test
D. Test blocks
11. The area in the machine shop whose
metal is being melted to form a new shape
is the:
A. foundry area (ANS)
B. tool and die
C. welding area
D. mass production area
12. Which of the following is not the work
of the machinist:
A. reboring
B. overhauling (ANS)
C. grinding
D. boring
13. The machine which can flatten surface
on a horizontal, vertical or angular plane is:
A. drilling machine
B. shaper machine (ANS)
C. power saw
D. lathe machine
14. Which of the following is not part of a
lathe machine:
A. fan (ANS)
B. carriage

C. headstock
D. tailstock
15. One important skill that operators of
machine tools must have an understanding
of measurement which demands:
A. speed
B. neatness
C. precision (ANS)
D. sociability
16. Which of the following metals is non-
magnetic?
A. manganese steel (ANS)
B. cast steel
C. alloy steel
D. cast iron
17. Which tool does not belong to the
group?
A. vise grip
B. feeler gage (ANS)
C. torque wrench
D. adjustable wrench
18. What process does not belong to the
group?
A. brazing
B. soldering
C. hardening (ANS)
D. resistance welding
19. A machinery operation whereby the
tool rotates while the feed is stationary:
A. shaping
B. milling (ANS}
C. turning
D. reaming
20. Which of the following is not a kind of
cast iron?
A. gray iron
B. white iron
C. malleable iron
D. lead iron {ANS}
21. Which of the following is not used to
temper steel?
A. oil bath
B. brine/salt bath
C. steam bath (ANS)
D. water bath
22. Which of the following is not a part of a
headstock?
A. anvil (ANS)
B. spindle
C. motor
0. back gear
23. The ability of material or metal to resist
being crushed is:
A. fatigue strength
B. bending strength
C. torsional strength
D. compressive strength (ANS)
24. Which of the following metal is easy to
chisel?
A. alloy steel
B. manganese steel
C. stainless steel
D. cast iron (ANS)
25. Ferrous metals contain a relatively large
amount of:
A. manganese
B. carbon (ANS)
C. sulfur
D. phosphorous
26. Which of the following is not a
classification of iron ore:
A. siderite
B. hematite
c. sulfurite (ANS}
0. magnetite
27. The ability of metals to stand loads
without breaking down is:
A. strain
B. stress
C. elasticity
D. strength (ANS)
28. Herringbone gears are gears which:
A. do not operate on parallel shafts
B. have line of contact between the teeth
(ANS)
MODULE 3 - ELEME
C. tend to produce end thrust on the s a
D. consists of two left handed helical gea
29. In general, the design stress and fad
of safety are related as follows:
A. Design = ultimate stress divided
factor of safety (ANS)
B. Design =ultimate stress times fact '
safety
C. Ultimate = stress factor for sa'e
divided by design stress
D. factor of stress = design stress div'
by ultimate stress
30. The internals stresses existing i
welded connection are:
A. relieved by x-ray analysis
B. may be relieved when weld is peenec
C. not relieved when the weld is pe
(ANS)
D. not relieved by heat treatment
31. In the usual spur gearing the:
A. pitch circle and base circle are the sam
B. working depth includes the clearance
C. tooth outline are always cycloidal cu
D. tooth outline are usually invo
curves (ANS)
32. One of the following is not corn
terms relating to the classification of fits
A. tunking
B. snug
C. medium force fit
0. bound (ANS)
33. Galvanized iron is a term referring
iron coated with:
A. tin
B. zinc (ANS)
C. magnesium
D. aluminum
34. Stainless steel is obtained principally
the use of which alloying element:
A. chromium (ANS)
B. nickel
C. carbon
D. tungsten

n.LO
::iart of a
I ·o reslSt
•••
C. tend to produce end thrust on the shafts
D. consists of two left handed helical gears
29. In general, the design stress and factor
of safety are related as follows:
A. Design = ultimate stress divided by
factor of safety (ANS)
B. Design = ultimate stress times factor of
safety
C. Ultimate stress factor for safety
divided by design stress
D. factor of stress = design stress divided
by ultimate stress
30. The internals stresses existing in a
welded connection are:
A. relieved by x-ray analysis
B. may be relieved when weld is peened
C. not relieved when the weld is peened
(ANS)
D. not relieved by heat treatment
31. In the usual spur gearing the:
A. pitch circle and base circle are the same
B. working depth includes the clearance
C. tooth outline are always cycloidal curves
0. tooth outline are usually involute
curves (ANS}
32. One of the following is not common
terms relating to the classification of fits:
A. tunking
B. snug
C. medium force fit
D. bound (ANS}
33. Galvanized iron is a term referring to
iron coated with:
A. tin
B. zinc (ANS)
C. magnesium
0. aluminum
34. Stainless steel is obtained principally by
the use of which alloying element:
A. chromium (ANS)
B. nickel
C. carbon
O. tungsten
35. One of the following is not a tap used
for cutting threads in holes:
A. tapping tap (ANS)
B. plugtap
C. taper tap
0. bottoming tap
36. A machining operation whereby the
tool reciprocates and the feed is stationary,
is called:
A. planning
B. shaping (ANS)
C. turning
D. reaming
37. One of the following metals which
respond to heat treatment:
A. cast iron
B. wrought iron
C. medium carbon steel (ANS)
0. low carbon steel
38. Ferrous metals contain a relatively large
amount of: ·
A. carbon (ANS}
B. manganese
C. phosphorous
0. sulfur
39. Which of the following is not a strength
property of metals?
A. tensile
B. rocking strength (ANS)
C. fatigue
0. torsional strength
40. A machine used in shaping metal by
means of abrasive wheel or the removal of
metals with an abrasive is called:
A. planer machine
B. power saw
C. shaper machine
O. grinding machine (ANS}
41. Which of the following is not a kind of
mandrel?
A. expansion mandrel
B. taper mandrel
C. contraction mandrel (ANS)
0. gang mandrel

42. The kind of center which is being
attached and meshed to the tailstock
spindle which is also static while the work is
rotating is:
A. dead center (ANS)
B. live center
C. focal center
D. work center
43. Which of the following is not a part of
the headstock?
A. spindle
B. anvil (ANS)
C. back gear
D. motor
44. Which process does not belong to the
group?
A. resistance welding
B. soldering
C. hardening (ANS)
D. brazing
45. The ratio of the average shear to
maximum shear stress for a circular section
equal to:
A. 2
B. 2/3
(. 3/2
D. % (ANS)
46. When a solid cube is subjected to equal
normal forces of the same type on all its
faces. The ratio of volumetric strain/linear
strain along any of the three axes will be
equal to:
A. 1
B. 2
c. J3
D. 3 (ANS)
47. The ratio of Bulk modulus to shear
modulus for Poisson's ratio of 0.25 will be
equal to:
A. 3/2
B. 5/6
C. 1 (ANS)
D. 6/3
48. The stress strain curve for a glass rod
during tensile test is:
A. a straight line
B. a parabola
C. a sudden break
D. an irregular curve (ANS)
49. When shear force is zero along a
section, the bending moment at that
section will be:
A. zero
B. minimum (ANS)
C. maximum
D. minimum or maximum
50. Percentage reduction of area while
performing tensile test on cast iron may be
of the order of:
A. 50%
B. 25%
C. 0% (ANS)
D. 15%
51. The intensity of stress that causes unit
strain is known as:
A. Unit stress
B. Bulk modulus
C. Modulus of rigidity
D. Modulus of elasticity (ANS)
52. For steel, the ultimate strength in shear
as compared to in tension is nearly:
A. same
B. half (ANS)
C. one-third
D. two-third
53. Select the one that has no unit:
A. Kinematic viscosity
B. Surface tension
C. Bulk modulus
D. Strain (ANS)
54. When a part is constrained to move
and heated, it develops:
A. principal stress
B. tensile stress
C. compressive stress (ANS)
D. shear stress
MODULE 3 - ELEMENTS I
55. The tensile stress of a material is given
by:
A. Maximum load during test over Original
cross-sectional area (ANS)
B. Average load during test over Original
cross-sectional area
C. Maximum load during test over Area at
the time of fracture
D. Average load during the test over Area
at the time of fracture
56. The size of hole that is drilled in plates
for riveting is:
A. equal to the diameter of rivet shank
B. slightly smaller than the diameter of
rivet shank
C. 1.5 to 2 mm smaller than the diameter
of rivet for rivets of 25 mm and above size.
D. 1.S to 2 mm larger than the diameter of
the rivet for rivets 2S mm and above size.
(ANS)
57. The horsepower that can be
transmitted by a shaft 60 mm diameter at
180 rpm with permissible shear stress of
850 kg/cm2
shall be approximately:
A. 30-35
B. 35-50
C. 50 - 60 (ANS)
D. 60-85
58. A column is called short column when:
A. The length is more than 30 times the
diameter
B. Slenderness ratio is more than 120
C. The length is less than 8 times the
diameter (ANS)
D. The slenderness ratio is more than 32.
59. Which one is the correct statement
about true stress-strain method?
A. There Is no such phenomenon like true
stress or true strain (ANS)
B. True stress is load per unit area (actual)
and similarly true strain is determined
under actual conditions.
C. This method can be used for
compression test as well.
D. It is more sensitive to changes in
mechanical conditions.

MOCULE 3 - ELEMENTS IN MACHINE DESIGN
•••
SS. The tensile stress of a material is given
by:
A. Maximum load during test over Original
cross-sectional area (ANS)
B. Average load during test over Original
cross-sectional area
C. Maximum load during test over Area at
the time of fracture
D. Average load during the test over Area
at the time of fracture
S6. The size of hole that is drilled in plates
for riveting is:
A. equal to the diameter of rivet shank
B. slightly smaller than the diameter of
rivet shank
C. 1.S to 2 mm smaller than the diameter
of rivet for rivets of 2S mm and above size.
D. 1.5 to 2 mm larger than the diameter of
the rivet for rivets 2S mm and above size.
(ANS)
S7. The horsepower that can be
transmitted by a shaft 60 mm diameter at
180 rpm with permissible shear stress of
8SO kg/cm
2
shall be approximately:
A. 30-3S
B. 3S-SO
C. S0-60 (ANS)
D. 60-85
58. A column is called short column when:
A. The length is more than 30 times the
diameter
B. Slenderness ratio is more than 120
C. The length is less than 8 times the
diameter (ANS)
D. The slenderness ratio is more than 32.
S9. Which one is the correct statement
about true stress-strain method?
A. There is no such phenomenon like true
stress or true strain (ANS)
B. True stress is load per unit area (actual)
and similarly true strain is determined
under actual conditions.
C. This method can be used for
compression test as well.
D. It is more sensitive to changes in
mechanical conditions.
60. The total strain energy stored in a body
is called:
A. Resilience (ANS)
B. Proof resilience
C. Modulus of resilience
D. Toughness
61. A material that is capable of absorbing
a large quantity of energy before fracture is
called:
A. Ductility
B. Toughness (ANS)
C. Resilience
D. Shock proof
62. Coaxing increases the:
A. Strength by reversible cycling
B. Corro~ion resistance by spraying
C. Hardness by surface treatment
D. Fatigue resistance by over-stressing the
metal by successively increasing loadings
(ANS)
63. Two shafts made up of mild steel one
having circular cross section and the other
being hollow circular with inner diameter
half of the outer diameter. The ratio of the
torque that can be transmitted in two cases
give by:
A. 2
B. 17/16
c. 1
D. lS/16 (ANS)
64. For a circular shaft subjected to torque
the value of shear stress is equal to:
A. Is uniform throughout
B. Has maximum value at the axis
C. Has maximum value at the surface
D. Is zero at the axis and linearly increases
to a maximum value at the surface of the
shaft (ANS)
6S. In laminated spring the strips are
provided in different lengths for:
A. Economy
B. Reduction in weight
C. Improved appearance
D. Equal distribution stress (ANS)

66. Select the one for which diamond
riveted joint can be adopted:
A. Butt joint (ANS)
B. Lap joint
C. Double riveted lap joints
0. All types of joints
67. Hoop stress refers to:
A. Circumferential tensile stress
B. Compressive stress
C. Radial stress
D. Longitudinal stress (ANS)
68. Modulus of rigidity can be defined as
the ratio of:
A. linear stress to longitudinal strain
B. Stress to volumetric strain
C. Shear stress to shear strain (ANS)
0. Stress to strain
69. 1 Meganewton per square meter is
equal to:
A. 1000,000 N/mm
2
B. 10,000 N/mm
2
C. 100 N/mm
2
D. 1 N/mm
2
(ANS)
70. The value of shear stress changes is
induced in the shaft because of the applied
couple that:
A. From maximum at the center to zero at
the circumference
B. From zero at the center to maximum at
the circumference (ANS)
C. From maximum at the center to
minimum at the circumference
D. From minimum at the center to
maximum at the circumference
71. In the design of pulley, key and shaft:
A. All three are designed for same strength
B. Key is made weaker link (ANS)
C. Pulley is made weaker
0. Shaft is made weaker
72. The radial pressure and hoop tension
for a thick cylinder is:
A. Maximum at inner surface and
decreases towards outer surface (ANS)
B. Minimum at inner surface and increased
towards outer surface
C. Minimum at inner and outer surfaces
and maximum in middle
D. Maximum at inner and outer surfaces
and minimum in middle
73. Auto frottage is the method os:
A. Calculating stresses in thick cylinders
B. Relieving thick cylinders
C. Prestressing thick cylinders (ANS)
0. Increasing life of thick cylinders
74. Ties are load carrying members that
carry:
A. Torsional loads
B. Axial compressive loads
C. Axial tension loads (ANS)
0. Transverse loads
75. If the areas of cross sections of square
and circular beams are same and both are
put to equal bending moment, then .the
correct statement is:
A. The circular beam is more economical
B. The square beam is more economical
(ANS)
C. Both the beams are equally strong
D. Both the beams are equally economical
76. In actual machines:
A. Mechanical advantage is unity
B. Mechanical advantage is less than unity
C. Mechanical advantage is less than
velocity ratio (ANS)
D. Mechanical advantage is equal to
velocity ratio
77. The essential condition of equilibrium
of a body is:
A. The algebraic sum of horizontal
components of all forces must be zero
B. The algebraic sum of vertical component
of all forces must be zero
C. The algebraic sum o f forces about a
point must be zero.
D. All of the above (ANS)
MODULE 3 - ELEMENTS .
78. Coulomb friction is:
A. Friction between two electrically charge
bodies
B. Friction between two bodies having
relative motion
C. Friction between a solid and a liquid (ANS)
D. Friction between two dry surfaces
79. The coefficient of friction is equal to:
A. The angle between the normal reaction
and the resultant of normal reaction and
the limiting friction
B. The tangent of the angle between the
normal reaction and the resultant of the
normal reaction and the limiting friction
C. The tangent of the angle of the net
resultant force with the direction of motion.
D. The tangent of the angle between the
normal reaction and direction of limiting
friction. (ANS)
80. The limiting force of friction is equal to:
A. The value of friction force that stops the
movement of the body.
B. The value of friction force that cannot
exceed under a given situation.
C. The friction force when the body is just
about to move. (ANS)
D. The friction force acting on a body when
it is in motion.
81. Ice is slippery when a man walks on it
because:
A. It has a smooth surface.
B. It has no friction.
C. It is very chilly.
D. Increase of pressure causes it to melt.
(ANS)
82. One joule is the same as:
A. 10
8
ergs
B. 107
ergs (ANS)
C. 10
5
ergs
D. 10
5
ergs
83. Static friction is:
A. Always greater than the dynamic
friction (ANSI
B. Always less than the dynamic friction
C. Always equal to the dynamic friction

MODULE 3 - ELEMENTS IN MACHINE DESIGN ...
78. Coulomb friction is:
A. Friction between two electrically charge
bodies
B. Friction between two bodies having
relative motion
C. Friction between a solid and a liquid (ANS)
0. Friction between two dry surfaces
79. The coefficient of friction is equal to:
A. The angle between the normal reaction
and the resultant of normal reaction and
the limiting friction
B. The tangent of the angle between the
normal reaction and the resultant of the
normal reaction and the limiting friction
C. The tangent of the angle of the net
resultant force with the direction of motion.
D. The tangent of the angle between the
normal reaction and direction of limiting
friction. (ANS)
80. The limiting force of friction is equal to:
A. The value of friction force that stops the
movement of the body.
B. The value of friction force that cannot
exceed under a given situation.
C. The friction force when the body is just
about to move. (ANS)
0. The friction force acting on a body when
it is in motion.
81. Ice is slippery when a man walks on it
because:
A. It has a smooth surface.
B. It has no friction.
C. It is very chilly.
D. Increase of pressure causes it to melt.
(ANS)
82. One joule is the same as:
A. 10
8
ergs
B. 107
ergs (ANS)
C. 10
6
ergs
D. 10
5
ergs
83. Static friction is:
A. Always greater than the dynamic
friction (ANS)
B. Always less than the dynamic friction
C. Always equal to the dynamic friction
0. Either greater or more than the dynamic
friction
84. When two forces that act at a point are
such that if the direction of one is reversed,
the direction of the resultant is turned
through 90°, the forces must be:
A. Equal in magnitude (ANS)
B. Inclined at less than 90°
C. Inclined at more than 90°
D. Acting at 180°
85. The curve of a catenary by nature is.
A. Ellipse
B. Hyperbolic
C. Circular
D. Parabolic (ANS)
86. If the only force acting on two bodies is
their mutual interactions and if both bodies
start from rest, the distance traveled by
each will be a:
A. Proportional to the masses of the bodies
B. Inversely proportional to the masses of
the bodies (ANS)
C. Inversely proportional to the square of
the masses of the bodies
D. Directly proportional to the square of
the masses of the bodies
87. Which statement is correct?
A. A body cannot have any energy without
having momentum.
B. A body can have kinetic energy without
having momentum.
C. A body in motion will always have kinetic
energy more than the potential energy. (ANS)
0. None of the above
88. A man is standing near the edge of a
uniformly rotating platform about an axis
passing through its center. The speed of
rotation of the platform will decrease if he:
A. Moves towards the axis of rotation
B. Accepts a heavy bag form one of its
friends standing near by and hold it in his
hand. (ANS)
C. Extend his arms outwards.
D. Jumps out from the platform.

••=• MACHINE DESIGN REVIEWER BY JAS TORDILLO
89. A shaft revolving in a bearing forms a:
A. lower pair (ANS)
B. Sliding pair
C. Higher pair
D. Cylindrical pair
90. Select the one that is a higher pair:
A. Thomson indicator mechanism
B. Harts straight line mechanism
C. Crossby indicator mechanism
D. Tooth gearing mechanism (ANS)
91. The mechanism used to enlarge or
reduce moments for reproducing drawings
to different scales is called:
A. Clinograph
B. Trisquare
C. Graphometer
D. Pantograph (ANS)
92. When a ship is traveling in sea, which of
the effect is more dangerous?
A. Rolling
B. Pitching (ANS)
C. Steering
D. All of the above
93. Slip in belt drive is:
A. Loss of power
B. Difference between the angular
velocities of two pulleys
C. Difference between the velocities of two
pulleys
D. Difference between the linear speed of
the rim of pulley and the belt on it. (ANS)
94. In case of flat belt drive the length of
belt in case of:
A. Open belt depends on sum of the
diameters of pulleys
B. Open belts depends on difference of the
diameters of the pulleys
C. Cross belts depends on the sum of the
diameters of pulleys (ANS)
D. Cross belts depends on the difference of
the diameters of the pulleys.
95. Kinematic pairs are those parts that
have:
A. Point or line contact between the two
elements when in motion
B. Surface contact between the two
elements when in motion
C. Elements of pairs not held together
mechanically
D. Two elements that allow relative
motion (ANS)
96. A cam with a roller follower would
constitute, which type of pair?
A. Lower pair
B. Higher pair (ANS)
C. Open pair
D. Close pair
97. The pitch point on a cam is:
A. Any point on pitch curve
B. The point of cam pitch that has the
maximum pressure angle (ANS)
C. A point at a distance equal to pitch circle
radius from the center
D. None of the above
98. The cam angle is:
A. The angle of rotation of the cam for a
definite displacement of the follower (ANS)
B. Angle subtended by live portion of cam
at the cam center
C. The angle subtended at the cam center
by the portion of cam during which the
follower moves.
D. The angle subtended by the cam at the
cam center when the follower dwells.
99. Module can be expressed in:
A. mm (ANS)
B. mm/no. of teeth
C. dimensionless
D. none of the above
100. A reverted gear train is one in which:
A. The direction of rotation of first and last
gear is opposite
B. The direction of rotation of first and the
last gear is the same
C. The first and last gear are on the same
shaft (ANS)
D. The first and the last gear are essentially
on separate by parallel shafts.
MODULE 4 - ELEMENT
MODULE 4
1. In case of spur gears the flank of e
tooth is:
A. The part of the tooth surface lying
below the pitch surface (ANS)
B. The curve forming face and flank.
C. The width of the gear tooth measureo
axially along the pitch surface
D. The surface of the top of the tooth.
2. In case of cross helical worm the axes o'
two shafts are:
A. Parallel
B. Intersecting
C. Non-parallel
D. Non-parallel-non-intersecting (ANS)
3. In case of gears the addendum is give~
by:
A. One module (ANS)
B. 2.157 x module
C. 1.57 x module
D. 1.25/module
4. Gears for watches are genera.
manufactured by:
A. Die casting
B. Machining on hobber
C. Machining on a gear shape
D. Stamping (ANS)
5. In case of helical gears the axial plane ·,
given by:
A. Diametral pitch over the sine of heli>
angle
B. Diametral pitch over the cosine of he1i>
angle
C. Diametral pitch over cotangent of helb
angle
D. Diametral pitch over the tangent o
helix angle (ANS)
6. A cam wherein the follower reciprocate
or oscillates in a plane parallel to the axis o
the cam is called:
A. Cylindrical cam (ANS)
B. Reciprocating cam

0
0
••••
MODULE 4
1. In case of spur gears the flank of the
tooth is:
A. The part of the tooth surface lying
below the pitch surface (ANS)
B. The curve forming face and flank.
C. The width of the gear tooth measured
axially along the pitch surface
D. The surface of the top of the tooth.
2. In case of cross helical worm the axes of
two shafts are:
A. Parallel
B. Intersecting
C. Non-parallel
D. Non-parallel-non-intersecting (ANS)
3. In case of gears the addendum is given
by:
A. One module (ANS)
B. 2.157 x module
C. 1.57 x module
D. 1.25/module
4. Gears for watches are generally
manufactured by:
A. Die casting
B. Machining on hobber
C. Machining on a gear shape
D. Stamping (ANS)
5. In case of helical gears the axial plane is
given by:
A. Diametral pitch over the sine of helix
angle
B. Diametral pitch over the cosine of helix
angle
C. Diametral pitch over cotangent of helix
angle
D. Diametral pitch over the tangent of
helix angle (ANS)
6. A cam wherein the follower reciprocates
or oscillates in a plane parallel to the axis of
the cam is called:
A. Cylindrical cam (ANS)
B. Reciprocating cam
C. None of the above
0. Circular cam
7. Rope brake dynamometer uses:
A. Oil is lubricant
B. Water as lubricant
C. Grease as lubricant
D. No lubricant (ANS)
8. Which of the following dynamometer is
widely used for absorption of wide range of
powers at wide range of speeds?
A. Hydraulic (ANS)
B. Belt transmission
C. Rope brake
D. Electric generator
9. In a balancing machine the units for
unbalance measurements are:
A. cps
B. gram
C. gm-cm-cps
D. gm-cm (ANS)
10. The supply of working fluid to the
engine to suit the load conditions can be
controlled by:
A. Expansion valve
B. Slide valve
c. Flywheel
D. Governor (ANS)
11. The function of a governor is to:
A. Store energy and give up whenever
needed
B. Regulate the speed during one cycle of a
prime mover
C. Increase variation of speed
O. Adjust variation of speed by varying the
input to the engine (ANS)
12. According to law of gearing:
A. Teeth should be of involute type
B. Clearance between mating teeth should
be provided
c. Dedendum should be equal to 1.157 m
D. None of these (ANS)
13. Bevel gears are used to transmit rotary
motion between two shafts whose axes are:

A. Parallel
B. Non-coplanar
C. Non-intersecting
D. None of the above (ANS)
14. If D and T be the pitch circle diameter
and no. of teeth of a gear, then its circular
pitch:
A. OT
B. T - D
C. 0-T
D. D/T (ANS)
15. If D1 and T1 be the diameter and no. of
teeth of gear 1 and 0 2 and T2 the
corresponding values of other gear in mesh,
then speed ratio NJN2will be equal to:
A. DJD2
B. DJD2 xTi/T1
C. TJT1
D. DJD1 (ANS)
16. Cold working:
A. Increase the fatigue strength (ANS)
B. Decrease the fatigue strength
C. Has no influence on fatigue strength
17. Coaxing is the procedure of increasing:
A. Metal strength by cycling
B. Metal hardness by surface treatment
C. Metal resistance to corrosion by coating
D. Fatigue limit by overstressing the metal
by successively increasing loadings. (ANS)
18. The notch angle of the lzod impact test
specimen is"
A. 20°
B. 30°
c. 10•
D. 45° {ANS)
19. In Vickers hardness testing, the pyramid
indenter apex is:
A. 40° (ANS)
B. 136°
c. 161°
D. 122°
20. In testing a material for endurance
strength, it is subjected to:
A. Static load
B. Impact load
C. Dynamic
D. Completely reversed load (ANS)
21. Select the correct statement:
A. A member made of steel will generally
be more rigid than a member of equal load-
carrying ability made of cast iron.
B. A member made of cast iron will
generally be more rigid than a member of
equal load carrying ability made of steel.
(ANS)
C. Both will be equally rigid.
D. Which one is rigid will depend on several
other factors.
22. In majority of machine members, the
damping capacity of the material should be:
A. low
B. zero
C. high {ANS)
D. could be anything
23. The crest diameter of a screw thread is
same as:
A. Major diameter (ANS)
B. Pitch diameter
C. Minor diameter
24. Muntz metal contains:
A. copper-nickel
B. copper-zinc (ANS)
C. copper-tin
D. copper-aluminum
25. A Babbitt is:
A. a eutectoid of iron and iron phosphide
B. a gadget for measuring
C. a measure of magnetic induction
produced in a material
D. antimony bearing lead or tin alloy (ANS)
26. Steel balls for ball bearings are
manufactured by:
A. Turning
B. Rolling
MODULE 4 - aEMEl'I
C. Casting
D. Cold heading (ANS)
27. The blow of pressure of a safety va
is:
A. slightly more than atmospheric pressun
B. half of the boiler working pressure
C. equal to boiler working pressure
D. 106% of boiler working pressure (ANS)
28. In case of a knuckle joint the pin is m
likely to fail in:
A. compression
B. shear
C. tension
D. double shear (ANS)
29. Splines are used when:
A. the power to be transmitted is low
B. the power to be transmitted is high
C. the torque is high
0. axial relative motion between the shi
and hub ls necessary (ANS)
30. Splined shafts are generally used in:
A. machine tools
B. aircraft
C. bicycles
D. automobiles (ANS)
31. Which key normally used in
watch?
A. kennedy key
B. tangent key
C. sunk key
D. none of the above (ANS)
32. Universal coupling is:
A. used for non-collinear shafts (ANS)
B. rigid coupling
C. type of flange coupling
D. used for collinear shafts
33. A flange coupling is:
A. used for non-collinear shafts
B. used for collinear shafts (ANS)
C. flexible
D. used only on small shafts rotating at
speeds

nee
era y
d-
e
ti be
-o lS
C. Casting
D. Cold heading (ANS)
27. The blow of pressure of a safety valve
is:
A. slightly more than atmospheric pressure
B. half of the boiler working pressure
C. equal to boiler working pressure
D. 106% of boiler working pressure (ANS)
28. In case of a knuckle joint the pin is most
likely to fail in:
A. compression
B. shear
C. tension
D. double shear (ANS)
29. Splines are used when:
A. the power to be transmitted is low
B. the power to be transmitted is high
C. the torque is high
0. axial relative motion between the shaft
and hub is necessary (ANS)
30. Splined shafts are generally used in:
A. machine tools
B. aircraft
C. bicycles
D. automobiles (ANS)
31. Which key normally used in wrist
watch?
A. kennedy key
B. tangent key
C. sunk key
D. none of the above (ANS)
32. Universal coupling is:
A. used for non-collinear shafts (ANS)
B. rigid coupling
C. type of flange coupling
D. used for collinear shafts
33. A flange coupling is:
A. used for non-collinear shafts
B. used for collinear shafts (ANS)
C. flexible
D. used only on small shafts rotating at low
speeds
34. In flange coupling the weakest element
should be:
A. flange
B. shaft
C. bolt brush
D. key (ANS)
35. Turn buckle has:
A. Left hand threads on both ends
B. Right hand thread on both ends
C. Left hand threads on one end and right
hand threads on the other end (ANS)
D. No threads
36. Elastic nut is a locking device that has:
A. One small nut is tightened over main nut
B. A slot is cut partly in middle of nut
C. Hard fibre or nylon cotter is received in
the nut and becomes threaded as the nut
is screwed on the bolt causing tight grip
(ANS)
D. Through slots are made at top and a
cotter pin is passed through
37. Treating the welds as a line, the
moment of inertia about center of gravity of
a circular weld of diameter Q. would be:
A. itd
2
/36
B. itd/6
c. rtd
3
/36
D. 7td3
/4 (ANS)
38. A single ply leather belt running at a
velocity of 300 ft/min is likely to transmit
per inch width:
A. 2.5 HP
B. 5.0 HP
C. 4.0 HP (ANS)
D. 3.0 HP
39. For but welding of two plates each of
which is 25 mm thick, the best process
would be:
A. TIG welding
B. MIG welding
C. Gas welding
D. Electro slag welding (ANS)
40. The compression members tend to
buckle in the direction of:

A. Axis of load
B. Perpendicular to the axis of load
C. Minimum cross section
D. Least radius of gyration (ANS)
41. The diameter of a washer is generally:
A. Equal to the diameter of the bolt
B. Slightly more than the diameter of bolt
(ANS)
C. Slightly less than the diameter of the
bolt
D. Of any size that suits the application
42. If the lead angle of a worm is 22 1/2°
then the helix angle will be:
A. 4S
0
B. 67 Y,
0
c. go•
D. None of the above (ANS)
43. A reinforced concrete beam is
considered to be made up of:
A. Clad material
B. Composite material
C. Homogenous material
D. Heterogeneous material (ANS)
44. Rankine formula is valid up to
slenderness ratio of:
A. 80
B. lSO
c. 60
D. 120 (ANS)
4S. Slenderness ratio of a column is:
A. Shaft diameter/shaft length
B. Column height/Column cross section
C. Column height/least dimension of
column cross section
D. Length of strut/least radius of gyration
(ANS)
46. In hydrodynamic bearings:
A. The oil film pressure is generated only
by the rotation of the journal (ANS)
B. The oil film is maintained by supplying oil
under pressure
C. Do not need external supply of lubricant
D. Grease is used for lubrication.
47. The rated life of a bearing changes:
A. Directly as load
B. Inversely as fourth power of load
C. Inversely as cube of load (ANS)
D. Inversely as square of load
48. In oil less bearings:
A. The oil film pressure is produced only by
the rotation of the journal
B. The oil film is maintained by supplying oil
under pressure
C. Do not need external supply of
lubricant (ANS)
D. Grease is needed to be applied after
some intervals.
49. In cross or regular lay ropes:
A. Direction of twist of in strands is
opposite to the direction of twist of
strands (ANS)
B. Direction of twist of wires and strands
are same
C. Wires in two adjacent strands. are
twisted in opposite direction
D. Wires are not twisted.
SO. Gears for wrist watches are generally
manufactured by:
A. lead angle
B. pitch angle
C. helix angle (ANS)
D. pressure angle
Sl. The type of cam used for low and
moderate speed engines is generally:
A. Harmonic (ANS)
B. Tangent
C. Involute
D. Flat
S2. The form coefficient of a spring is:
A. The load/unit deflection
B. Load/spring area
C. Ratio of coil diameter to wire diameter
D. Its capability of store energy. (ANS)
S3. Coriolis component of acceleration is
found in:
A. Four bar mechanism
B. Mechanism of steam engine
MODULE 4 - ELEMENT;
C. Lower pair
D. Wit worth quick-return motion (ANS)
S4. Cold working of materials:
A. Increases the fatigue strength (ANS)
B. Decreases the fatigue strength
C. Does not change fatigue strength
SS. A babbitt is:
A. A eutectic of iron and iron phosphide
B. A gadget for measuring volume
C. Antimony bearing lead or tin alloy
(ANS)
D. A measure of magnetic induction
produced in a material.
S6. Addendum of a cycloidal gear tooth is·
A. Cycloid
B. Epicycloid (ANS)
C. Straight rack
D. Involute
S7. Spiral gears are suitable for
transmitting:
A. small power (ANS)
B. no power but motion only
C. any power
D. huge power
S8. As pump speed increases, its (NPS )
net positive suction head requirement:
A. Increases (ANS)
B. Remains
D. Decreases
S9. In pump NPSH requirements are not
satisfied:
A. It will not develop head
B. Efficiency will be low
C. It will consume excessive power
D. It will be cavitated (ANS)
60. Which type of chain is used in
motorcycle?
A. Bush roller (ANS)
B. Pintle
D. Silent

••••
C. Lower pair
D. Wit worth quick-return motion (ANS)
54. Cold working of materials:
A. Increases the fatigue strength (ANS)
s.. Decreases the fatigue strength
C. Does not change fatigue strength
S5. A babbitt is:
A. A eutectic of iron and iron phosphide
B. A gadget for measuring volume
C. Antimony bearing lead or tin alloy
(ANS)
D. A measure of magnetic induction
produced in a material.
S6. Addendum of a cycloidal gear tooth is:
A. Cycloid
B. Epicycloid (ANS)
C. Straight rack
D. Involute
S7. Spiral gears are suitable for
transmitting:
A. small power (ANS)
B. no power but motion only
C. any power
D. huge power
SS. As pump speed increases, its (NPSH)
net positive suction head requirement:
A. Increases (ANS)
B. Remains
D. Decreases
59. In pump NPSH requirements are not
satisfied:
A. It will not develop head
B. Efficiency will be low
C. It will consume excessive power
D. It will be cavitated (ANS)
60. Which type of chain is used in
motorcycle?
A. Bush roller (ANS)
B. Pintle
D. Silent
61. Which of the following ropes will be
most flexible?
A. 6 by 9
B. 6 by 7
c. 8 by 19
D. 6 by 37 (ANS)
62. The working load (P) for a chain for
crane application is expressed in terms of
diameter of link "d" in cm as follows:
A. P = l .Sd
2
s. P = sod'
c. P = sood2
(ANS)
D. P = 2Sd
2
63. If the square key and the shaft are to be
of the same material and of equal strength,
the length of key would be (d = shaft
diameter)
A. d
B. 1.5 d
c. 2d
D. 1.23d (ANS)
64. In a standard coarse thread bolt the
stress concentration is maxim um at:
A. root (ANS)
B. flank
C. all over the surface
D. top surface
6S. Fatigue strength of a surface may be
increased by:
A. Making surface rough
B. Filling the surface
C. Applying concentrated hydrochloric acid
on the surface
D. Polishing the surface (ANS)
66. The maximum deflection allowed in
gantry griders is:
A. L/200
B. L/SOO
C. L/300
D. L/1000 (ANS)
67. The maximum size of the fillet weld
that can be used at:
A. 2 mm
B. 3 mm (ANS)

C. 7 mm
D. Smm
68. The maximum size of the fillet weld
that can be made in single pass is:
A. 6 mm (ANS)
B. 12 mm
C. 8 mm
D. 3mm
69. A rolled steel flat designated as 50 ISF8
means:
A. The flat is 50 mm long and 8 mm thick.
B. The flat is 50 mm wide and 8 mm thick.
(ANS)
C. The flat has cross section 50 sq. mm and
width 8 mm
D. The flat has cross section 50 sq. mm and
depth 8 mm.
70. The column splice is used for
increasing:
A. Strength of the column
B. Cross-sectional area of the column
C. length of the column (ANS)
D. All of the above
71. Zero axial thrust is experienced in:
A. Helical gears
B. Spiral gears
C. Herringbone gears (ANS)
D. Bevel gears
72. In order to realize the advantage of
fluid friction, it is essential to have:
A. Parallel oil film in bearing (ANS)
B. Converging oil film
C. No oil film
D. Diverging oil film
73. A shaft rotating in anticlockwise
direction at slow speed inside a bearing will
be:
A. At bottom most of bearing
B. Towards left side of bearing making
metal to metal contact (ANS)
C. Towards left side of bearing and making
no metal to metal contact
74. Points of arrest of iron correspond to:
A. Stages at which allotropic forms change
(ANS)
B. Stages at which further heating does not
increase temperature for sometime
C. Stages at which properties do not
change with increase in temperature
D. There is nothing like points of arrest.
75. Delta iron occurs at temperature of:
A. Room temperature
B. Above melting point
C. Between 1400°C to 1539°C (ANS)
D. Between 1000°C to 1400°C
76. Gamma iron exists at following
temperature
A. Room temperature
B. Near melting point
C. Between 1400°C to 1539°C
0. Between 1000°C to 1400°C (ANS)
77. Ferromagnetic alpha iron exists- in
temperature range of:
A. Below 723°C (ANS)
B. 700 - 910°C
c. 1000 - 1440°C
D. 1400 - 1539°C
78. Paramagnetic alpha iron changes' to
gamma iron at:
A. 970°C
B. 910°C (ANS)
c. 440°(
D. 1639°(
79. Fatigue failure occurs when a part is
subjected to:
A. compressive stress (ANS)
B. tensile stress
C. torsion
D. fluctuating stress
80. A body having identical properties all
over it is called:
A. Homogeneous (ANS)
B. Elastic
C. Ductile
D. lsentropic
MODULE 4 - ELEMENTS
81. If a material recovers its original
dimensions, when the load is removed, it 1s
called:
A. Plastic
B. Elastlc (ANS)
C. Brittle
D. Annealed
82. A behavior of metals where in strength
of a metal is increased and the ductility s
decreased on heating at a relatively low
temperature after cold working, is called:
A. twinning
B. solid solution hardening
C. clustering
D. strain aging (ANS)
83. A ductile fracture is characterized by:
A. rapid rate for crank propagation
B. negligible deformation
C. fragmentation into more than two
pieces
D. appreciable plastic deformation prior to
propagation of crack (ANS)
84. The ability of a material to absorb
energy when deformed elastically and to
return to it when unloaded, is known as:
A. creep
B. fatigue strength
C. hardness
D. resilience (ANS)
85. Machining properties of steel can be
improved by adding:
A. sulfur, lead, phosphorous (ANS)
B. silicon, aluminum, titanium
C. vanadium, aluminum
D. chromium, nickel
86. Eutectoid steel the percentage of
carbon is:
A. 0.02%
B. 0.3%
c. 0.63%
D. 0.8% {ANS)
87. A cold chisel is made of:
A. Mild steel
B. HSS

81. If a material recovers its original
dimensions, when the load is removed, it is
called:
A. Plastic
B. Elastlc (ANS}
C. Brittle
D. Annealed
82. A behavior of metals where in strength
of a metal is increased and the ductility is
decreased on heating at a relatively low
temperature after cold working, is called:
A. twinning
B. solid solution hardening
C. clustering
0. strain aging (ANS}
83. A ductile fracture is characterized by:
A. rapid rate for crank propagation
B. negligible deformation
C. fragmentation into more than two
pieces
D. appreciable plastic deformation prior to
propagation of crack (ANS)
84. The ability of a material to absorb
energy when deformed elastically and to
return to it when unloaded, is known as:
A. creep
B. fatigue strength
C. hardness
D. resilience (ANS)
85. Machining properties of steel can be
improved by adding:
A. sulfur, lead, phosphorous (ANS)
B. silicon, aluminum, titanium
C. vanadium, aluminum
0. chromium, nickel
86. Eutectoid steel the percentage of
carbon is:
A. 0.02%
B. 0.3%
c. 0.63%
D. 0.8% {ANS}
87. A cold chisel is made of:
A. Mild steel
B. HSS
C. Cast iron
D. High carbon steel (ANS}
88. Cyaniding is the process of:
A. Dipping steel is cyanide bath
B. Reacting steel surface with cyanide salts
C. Adding carbon and nitrogen by heat
treatment of steel to Increase its surface
hardness (ANS)
0. Obtaining cyanide salts.
89. The constituent that has a powerful
softening effect on cast iron and its
presence in cast iron reduces the ability of
the iron to retain carbon in chemical
combination is:
A. silicon (ANS)
B. aluminum
C. carbon
0 . sulfur
90. Tensile strength of common varieties of
cast iron is in the range:
A. 40-60MPa
B. 150-180 MPa
C. 840-1500 MPa (ANS}
0. 1500 - 1650 MPa
91. In carbon steel castings:
A. The percentage of carbon Is less than
1.7% {ANS)
B. The percentage of carbon is between
1.7% to 2%
C. The percentage of alloying elements is
controlled
92. Aluminum alloys for pressure die
casting:
A. Must possess considerable fluidity
{ANS)
B. Must not be free from hot shortness
C. Must have iron as one of the
constituents
o. Must be light
93. electro-forming is especially valuable
for:
A. good conductors of electricity
B. decorative items

••=• MACHINE DESIGN REVIEWER BY J AS TORDILLO
C. thin walled parts requiring a high order
of accuracy and internal surface finish
(ANS)
0. non-ferrous components
94. 1n powder metallurgy the process of
heating the cold pressed metal powder is
called:
A. sintering (ANS)
8. granulation
c. deposition
0. precipitation
95. Which one is different from the
remaining:
A. cyaniding
8. nitriding
C. flame hardening
D. electroplating (ANS)
96. The hardness of steel increases if it
contains:
A. austenite
8. pearlite
C. all of the above
D. martensite (ANS)
97. The presence of sulfur in pig iron
makes:
A. It easily machinable
B. It hard
C. Increases the fluidity
D. The casting unsound (ANS)
98. Compressive strength of grey cast iron
in tones/cm
2
is of the order of:
A. 3-5
B. 7 - 10
c. 15 - 22
D. 5-7 (ANS)
99. The machinability of steel can be
increased by:
A. silicon and sulfur
B. phosphorous, lead and sulfur (ANS)
C. sulfur, graphite and aluminum
D. phosphorous and aluminum
100. Steel with 8% carbon and 100%
pearlite is known as:
A. eutectoid (ANS)
8. hyper-eutectoid
C. austenite
0 . solidus
MOt>VLE 5 - ELEMENT
MODULE 5
1. The property of material that relates "e
A. Stress
B. Strain
C. Poisson's circle (ANS)
0. Endurance !imit
2. Also called eccentrically loaded bear~5
is ___ ___
A. full bearings
B. offset bearings (ANS)
C. partial bearings
0. fitted bearings
3. In the selection of wire rope, regular ·..,,
means wires and strands are arranged
A. twisted in the same direction
8. twisted in any direction
0. twisted in along direction
4. In involute teeth, the pressure angle s
often defined as the angle between the ;.,e
of action and the line tangent to the pitcr
circle. It is also termed as:
A. helix angle
B. angle of recess
C. angle of obliquity (ANS)
D. arc of action
land of the tooth.
A. top root
B. addendum (ANS)
C. land
D. hunting tooth
6. The function of clutch in the machine .s
C. to disconnect or connect at will the drive
(ANS)
speed

MOC>VLE 5 - ELEMENTS IN MACHINE t>ESIGN
•••
MODULE 5
1. The property of material that relates the
A. Stress
B. Strain
C. Poisson's circle {ANS)
D. Endurance limit
2. Also called eccentrically loaded bearing
is _ _____
A. full bearings
B. offset bearings (ANS)
C. partial bearings
D. fitted bearings
3. In the selection of wire rope, regular lay
means wires and strands are arranged in
A. twisted in the same direction
B. twisted in any direction
0. twisted in along direction
4. In involute teeth, the pressure angle is
often defined as the angle between the line
of action and the line tangent to the pitch
circle. It is also termed as:
A. helix angle
B. angle of recess
C. angle of obliquity {ANS)
D. arc of action
land of the tooth.
A. top root
B. addendum {ANS)
C. land
D. hunting tooth
6. The function of clutch in the machine is:
C. to disconnect or connect at will the drive
(ANS)
speed
7. It is generally recommended and normal
for a designer to add a hunting tooth to
evenly distribute the wear on meshing
teeth like a 53 teeth gears mesh with 30
teeth pinion. Find the rotation of pinion to
mesh with same pair of teeth again.
A. 120
8. 81
c. 61
D. 53 (ANS)
8. The angle made by the helix of the
thread (in a straight thread) at the pitch
diameter with a plain perpendicular to the
axis is called ____
A. lead angle {ANS)
B. truncation
C. lead
D. angle of thread
9. The rule of thumb in journal bearing
design, the clearance ratio/clearance should
be:
A. 0.0090
B. 0.0042
C. 0.0010 {ANS)
D. 0.0012
10. The moment of inertia of a rectangle
whose base ub" and height "h" about·its
base is:
A. bh
3
/4
B. bh
3
/12
c. bh3
/24
D. bh3
/3 {ANS)
11. Cold rolled shafting is not available in
diameter larger than _____
A. 6 inches
B. S inches (ANS)
C. 6 Y, inches
D. 5 Y, inches
12. The cast iron flywheels are commonly
designed with a factor of safety of
A. 14 to 15
B. 10 to 13 (ANS)
C. 8 to 9
D. 6to12

13. A pair of equal and opposite (not
collinear) forces that tend to cause a
rotation of a body.
A. couple (ANS)
B. centroids
C. equilibrium
D. vector
14. The ratio of the pitch diameter in
inches to the number of teeth.
A. Pitch circle
B. English module (ANS)
C. Module
D. Pitch
15. When the motion is
diminished/decreasing instead of increasing
is called:
A. deceleration
B. uniform negative impulse
D. all of these
16. - - - - - is a unit of energy.
A. ft-lb (ANS)
B. hp
C. Btu/hr
D. Watt
17. When high strength and durability are a
requirements for choosing ear materials it is
preferable to use material.
A. hardened bronze
B. steel (ANS)
C. phenolic laminated
D. white iron
18.
parallel.
A. couple
B. non collinear
C. resultant
forces when actions are
D. non concurrent (ANS)
19. The product of the mass and the
velocity of the center of gravity of the body
is called:
A. linear momentum (ANS)
B. angular impulse
C. linear impulse
D. angular momentum
20. The distance between similar, equally-
spaced tooth surfaces in a given direction
and along a given line.
A. pitch circle
B. pitch plane
C. pitch (ANS)
D. pitch diameter
21. Could be defined as simply push or pull.
A. power
B. inertia
C. work
D. force (ANS)
22. Opposite directional forces equal in
magnitude and parallel is called ____
A. non coplanar
B. centro
C. couple (ANS)
D. coplanar
23. Quantities such as time, volume and
density are completely specified when their
magnitude is known is also called :
A. couple
B. resultant
C. components
D. scalar (ANS)
24. The use of hardened steel for the
mating metal gear appears to give the best
results and longer operational life. The
usual hardness is in the range of:
A. over 600 BHN (ANS)
B. 300 to 400 BHN
C. below 350 BHN
D. below 400 BHN
25. is the product of the
resultant of all forces acting on a body and
the time.
A. linear momentum
B. linear Impulse (ANS)
C. angular momentum
0. angular impulse
MODULE 5 - ELEMENTS
26. The separate forces which can be so
A. concurrent forces
B. non concurrent forces
C. couple
D. component (ANS)
if the stress is less than the yield point.
A. plasticity
B. elasticity
C. creep (ANS)
D. ductility
28. The most known lubricants being
utilized in whatever category of load and
speed are oil, air, grease and dry lubricants
like:
A. bronze
B. lead
C. silicon
D. graphite (ANS)
29. A coupling that allows axia
flexibility/movement in the operation.
Made of alternate bolting steel, leather
fabric and/or plastic material into the two
flanges:
A. Flexible disc coupling (ANS)
B. Flexible toroidal spring coupling
C. Flexible Oldham coupling
0. Elastic-material bonded coupling
30. It consist of two cranks, a stationary
piece called the line of centers and the
connecting rod is a:
A. five-bar linkage
B. four-crank braces
C. three-crank linkage
D. four-bar linkage (ANS)
31. Used to change rotary motion to
reciprocating motion __.
A. rack gears (ANS)
B. hypoid gears
C. helical gears
D. herringbone gears
32. The effective face width of a helica
gear divided by gear pitch.

•••
26. The separate forces which can be so
A. concurrent forces
B. non concurrent forces
C. couple
D. component (ANS)
if the stress is less than the yield point.
A. plasticity
B. elasticity
C. creep (ANS)
D. ductility
28. The most known lubricants being
utilized in whatever category of load and
speed are oil, air, grease and dry lubricants
like:
A. bronze
B. lead
C. silicon
D. graphite (ANS)
29. A coupling that allows axial
flexibility/movement in the operation.
Made of alternate bolting steel, leather,
fabric and/or plastic material into the two
flanges:
A. Flexible disc coupling (ANS)
B. Flexible toroidal spring coupling
C. Flexible Oldham coupling
0. Elastic-material bonded coupling
30. It consist of two cranks, a stationary
piece called the line of centers and the
connecting rod is a:
A. five-bar linkage
B. four-crank braces
C. three-crank linkage
D. four-bar linkage (ANS)
31. Used to change rotary motion to
reciprocating motion __.
A. rack gears (ANS)
B. hypoid gears
C. helical gears
0. herringbone gears
32. The effective face width of a helical
gear divided by gear pitch.
A. Approach ratio (ANS)
B. Arc of action
C. Arc of recess
D. Face overlap
33. Pitch diameter less the diameter of the
roller chain is equal to :
A. top land
B. bottom diameter (ANS)
C. addendum
0. inside diameter
34. Generally applied on speed reducer due
to large speed ratio.
A. bevel gears
B. helical gears
C. worm gears (ANS)
D. hypoid gears
35. If shaft is specified as - diameter 2.00"
max and 1.99" min in diameter then the
0.010" could be defined as _____
A. allowance
B. fit
C. variance
D. tolerance (ANS)
36. A material plane was subjected to a
load. When the load was removed, the
strain disappeared. From the structural
change, which of the following can be
considered about this material?
A. it has high modulus of elasticity
B. it does not follow Hooke's Law
C. it is plastic
D. it is elastic (ANS)
37. Helix angle in the range of ____
degrees is recommended for wide face
helical gears.
A. less than lS (ANS)
B. less than 20
C. 20 to 35
D. 20 to 22
38. Difference between maximum material
limits of mating parts. Or it is minimum
clearance or maximum interference
between parts.
A. tolerance

••• MACHINE DESIGN REVIEWER BY J'AS TORDILLO
B. fits
C. variance
D. allowance (ANS)
39. The concave portion of the tooth
profile where it joins the bottom of the
tooth.
A. root circle
B. fillet radius
C. fillet curves (ANS)
D. fillet
40. The changes in shape or geometry of
the body due to action of a force on it is
called deformation or. _____
A. shear stresses
B. stresses
C. compressive stress
D. strain (ANS)
41. For an evenly distributed and uniform
wear on each meshing gear tooth, the ideal
design practice is to consider a ___.
A. wear resistance alloy addition to tooth
gears
B. heat treatment of the gears
C. hardening of each tooth
D. hunting tooth addition (ANS)
42. The reciprocal of a diametral pitch
or the ratio of the pitch diameter to the no.
of teeth.
A. lead
B. module (ANS)
C. involute
D. clearance
43. Ability to resist deformation under
stress.
A. plasticity
B. all of these
C. stiffness (ANS)
D. toughness
44. Flat leather belting not recommended
for used in a speed in excess of ____
fpm.
A. 3600
B. 4800
C. 6000 (ANS)
D. all of these
4S. The angle included between the sides
of the thread measured in an axial plane in
a screw thread.
A. Angle of Thread (ANS)
B. Angle between thread or 40°
C. Helix angle thread
D. Half angle thread or 20°
46. An elastic body whose primary function
is to deflect under load.
A. clutch
B. stopper
C. brake
D. spring (ANS}
47. Steel plates allowable tensile strength.
A. 396.41 N/m
2
(ANS)
B. 296.12 N/m2
C. 379.31 N/m2
D. 310.11 N/m
2
48. Poisson's ratio is the ratio of:
A. elastic limit to yield strength
B. lateral deformation to the longitudinal
deformation (ANS}
C. shear strain to unit strength
D. elastic limit to shear strength
49. Manganese Steel standard designation,
SAE ____
A. 13xx (ANS}
B. lOxx
C. llxx
D. 8xxx
SO. One of these materials is not a
structural steel?
A. low carob steel
B. tool and die steel (ANS}
C. stainless steel
0. medium carbon steel
51. The ratio of moment of inertia on a
cross-section of a beam to this section
modulus is:
A. a measure of distance (ANS}
MODULE 5 - ELEMENTS :l
B. equal to the radius of gyration and
compression
C. multiplied by the bending moment
D. equal to the area of the cross-section
and tension
S2. The SAE 2340 shafting contain ___
Nickel.
A. 3.8S% Ni
B. 4% Ni
C. 3.25 to 3.75% Ni (ANS)
D. 3.84% Ni
S3. Chromium steel standard designation,
SAE
----
A. 92xx
B. Sxxx (ANS)
C. 3xxx
D. llxx
S4. Alloy that improves strength of steel a
high temperature application.
A. aluminum
B. manganese
C. silicon
D. chromium (ANS}
SS. When an air entrainment agent is put
into a concrete mix.
A. the water/cement ratio must be reduced
B. the strength will decrease (ANS}
C. minimal effect
0. the strength will suffer up to SO%
56. In general, alloys with high nicke
content retain toughness to quite low
temperature up to ___°F.
A. -380
B. -400
c. -260
D. -320 (ANS)
the ____
A. deflection of the beam
B. compressive strength of the beam
C. tensile strength of beam
D. load on the beam (ANS)

•••
B. equal to the radius of gyration and
compression
C. multiplied by the bending moment
D. equal to the area of the cross-section
and tension
52. The SAE 2340 shafting contain ___
Nickel.
A. 3.85% Ni
B. 4%Ni
C. 3.25 to 3.75% Ni (ANS)
D. 3.84% Ni
53. Chromium steel standard designation,
SAE ___
A. 92xx
B. Sxxx (ANS}
C. 3xxx
D. llxx
54. Alloy that improves strength of steel at
high temperature application.
A. aluminum
B. manganese
C. silicon
D. chromium (ANS)
55. When an air entrainment agent is put
into a concrete mix.
A. the water/cement ratio must be reduced
B. the strength will decrease (ANS)
C. minimal effect
D. the strength will suffer up to 50%
56. In general, alloys with high nickel
content retain toughness to quite low
temperature up to ___°F.
A. -380
6. -400
c. -260
D. -320 (ANS)
the ____
A. deflection of the beam
B. compressive strength of the beam
C. tensile strength of beam
O. load on the beam (ANS)
58. It is recommended not to have a direct
drive between driven and drive sprockets if
the ratio of their teeth exceeds
Use 2 or more step combinations.
A. 10 times (ANS)
B. 8 times
C. 5 times
D. 6 times
59. The length of the hub should not be
made lesser than the face width of the gear.
Hub lengths usually vary from 1.250 to 2D,
where D is the shaft diameter. The
reasonable diameter of steel hub should be:
A. 20
B. 1.80 (ANS)
c. 1.550
D. 1.200
60. Length of contact between two mating
parts in a screw and nut threads measured
axially is termed ____
A. length of engagement (ANS)
B. Axis of contact
C. Arc of contact
D. Depth of engagement
61. The sum of their addendums and
dedendums.
A. whole depth (ANS)
B. full depth
C. width of space
D. working depth
62. It is recommended for high speed
application that the minimum number of
teeth in small sprocket should be:
A. 26 to 30
B. 12 to 16
C. 26 to 28
D. 18 to 24 (ANS)
63. Stresses that are independent of loads
is called ___
A. working stress
B. residual stress (ANS)
C. simple stress
D. combined stress

Machine Design Board Review part1.pdf

Machine Design Board Review part1.pdf

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Machine Design Board Review part1.pdf