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WINGSSS COLLEGE OF AVIATION TECHNOLOGY
(Approved by Director General Of Civil Aviation, Govt. Of India)
140/6,NEAR WARJE CHOWK,N.D.A. ROAD, WARJE MALWADI, PUNE -411058 (M.S.)
Exam: SemII Batch: Stream: Date:
Name:_________________________________________________ Roll No.: M-__________________
Subject: WORKSHOP PRACTICE – II Time:1000 Hrs. to 1300 Hrs.
OBJECTIVE: 60 MARKS SUBJECTIVE: 40 MARKS TOTAL: 100 MARKS
Signature of Student: __________________________Signature of Invigilator:_____________________
OBJECTIVE QUESTIONS Marks-60
Q.1) Right hand thread nut or bolt tightenif
it rotates in…..
1. Anticlockwise
2. Clockwise
3. Counter-clockwise
4. None of above
Q.2) what is followingstatementtrue for
triple start thread?
1. P = L
2. L = P/3
3. P = L/3
4. P = 3L
Q.3) Identifythe buttressthread from given
figure.
Q.4) Allowance is
1. Amountof variationpermittedinsize of
part
2. Relationbetweentwomatingpartswith
reference toconditionof assembly.
3. The Standardsize of part
4. Difference betweenmin.andmax.
Dimensionsof parts.
Q.5) what material used for taps and dies?
1. Copper
2. Steel
3. High speedsteel
4. Gun metal
Q.6) which is followingtap usedfor
threadingin deephole?
1. Extensiontap
2. Serial tap
3. Spiral pointtap
4. Nut tap

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Q.7) which statementis true for gear drives
A) They have zero slip
B) Gear drivesare compact
C) Low power onlytransmitted.
1. A, B, C are right
2. A is true but B and C are wrong
3. A and B true butC is wrong
4. A is wrongbut B and C are true
Q.8) Identifytype ofgear type of gear
1. Hypoid
2. Sun and planet
3. Helical
4. Spur
Q.9) Speedreductionup to 300:1 possible in..
1. Bevel gear
2. Rack andpinion
3. Worm and worm wheel
4. Helix gear
Q.10) whichpart of gear hold planetgears
togetherand equallyspaced?
1. Sungear
2. Career
3. Ring gear
4. None of above.
Q.11) ……isan imaginary circle which by pure
rollingaction would give the same motion as
the actual gear.
1. Addendum
2. Dedendum
3. Pitch circle
4. Module
Q.12) whichgear cutting processis usedfor
high productionof spur gears?
1. Hobbing
2. Broaching
3. Parallel shaping
4. Rack cutter
Q.13) whichtype of chain is generallyused
for quietand smoothoperation?
1. Pintle chain
2. Silentchain
3. Leaf chain
4. Laminatedmetal chain
Q.14) Cross beltdrive is usedfor
1. Rotate drivenpulleyinthe same direction
of drivingpulley.
2. Rotate drivenpulleyinthe opposite
directionof drivingpulley.
3. Higherpowertransmissionthanopenbelt
drive
4. Option2 and3 are true
Q.15) what are the fibersusedin V belt
1. Rubber
2. Polymer
3. Carbon steel
4. Kevlar
Q.16) Flat beltmax speedrange is
1. 25 m/s
2. 50 m/s
3. 75 m/s
4. 100 m/s
Q.17) Typesof load on bearings are
1. Thrust
2. Radial

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3. Thrust and Radial
4. All of above
Q.18) Ball bearingmainly takes….
1. Radial loads
2. Axial load
3. Tangential load
4. None of above
Q.19) Bearing liningis
1. Bronze
2. Duralumin
3. Babbitt
4. Copper
Q.20) Important propertiesof bearing
lubricants are
1. Unstable viscosity
2. Corrosiveness
3. Good filmstrength
4. Weak structure
Q.21) while usinghacksaw applythe force
only on………..Strokes
1. Backward
2. Forward
3. Both side
4. No needtoapplyforce
Q.22) whichside issafe to stand for operator
while usingshaper machine?
1. on the going-awayside
2. on the comingtool side
3. on the leftside
4. on the right side
Q.23) whichis followingnot a type of lathe
center?
1. Live Centre
2. Dead Centre
3. Half Centre
4. Full Centre
Q.24) whichis followingoperationcannot
performedby drillingmachine?
1. Hobbing
2. Rimming
3. Boring
4. Spot facing
Q.25) Grindingwheel specificationsare
following
51 A 36 L 5 V 40
What is for ‘V’stand for?
1. Grain size
2. Grade
3. Bond
4. Structures
Q.26) Buffingmachine main application is
1. Mirror finishing
2. Parting
3. Smoothing
4. Grooving
Q.27) what type of mechanismis usedin
shaper machine?
1. Crank and slider
2. Quick return
3. Pistonand cylinder
4. Double slotted
Q.28) whichtype of gas used ingas welding?
1. Hydrogen
2. Acetylene

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3. Natural gas
4. All of above
Q.29) what is color usedfor hoses carrying
oxygenin gas welding?
1. Green
2. Black
3. Red
4. Blue
Q.30) Neutral type flame has temperature
around
1. 300000C
2. 320000C
3. 340000C
4. 360000C
Q.31) Fluxcoating on the electrode isdone
for
1. Increase arc temperature
2. To reduce powerconsumption
3. To produce shielding gas
4. To act as dialecticconductor
Q.32) In electricarc welding,generally
positive terminal is connectedto
1. Work
2. Electrode
3. Both are connectedtopositive terminal
4. Both are connectedtonegative terminal
Q.33) To weldcarbon steel following
electrode isused
1. Brass
2. Copper
3. Tungsten
4. Stainlesssteel
Q.34) whichis followingbestwelding
methodfor fabrication of pipesand tubes?
1. Electricarc welding
2. Electricresistance welding
3. Oxy-acetylene welding
4. TIG welding
Q.35) Identifythe type of weldingjoint
1. Butt Joint
2. Corner joint
3. Edge joint
4. Filletjoint
Q.36) Identifythe weldingdefects
1. Incomplete
penetration
2. Undercutting
3. Slaginclusion
4. Incomplete
fusion
Q.37) Solderis alloyof
1. Tin & Zink
2. Tin & brass
3. Tin & copper
4. Tin & lead
Q.38) whichis followingmetal cannot joined
by brazing
1. Copper
2. Brass
3. Steel
4. Magnesium
Q.39) what is sequence forapplyingtesting
liquidsinDye penetrationtesting?
1. Cleaner Penetrant Developer
2. Cleaner Developer Penetrant

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3. Penetrant Cleaner Developer
4. Penetrant Developer Cleaner
Q.40) In ultrasonic testingsoundfrequencyis
usedaround
1. 0-20 KHz
2. 20 kHz-1GHz
3. 20MHz-1GHz
4. 1GHz- 10 GHz
Q.41) Ultrasonictestingcan test Material
thickness& lengthup to
1. 10 feet
2. 20 Feet
3. 30 feet
4. 40 feet
Q.42) whichtype of rays are usedin
radiography testing?
A- X ray, B- Alpha, C- Gamma, D- Beta.
1. OnlyA
2. A and B
3. A and C
4. A and D
Q.43) Eddy current testinglimitationis
1. It is notportable
2. Complex shape andsize material cannotbe
inspected
3. It doesnot give immediateresult
4. Onlyconductive materialsare inspected
Q.44) Purpose of couplant in ultrasonic
testingis
1. Displace the air andtransmitmore sound
energy
2. Enhance soundfrequency
3. Reduce powerconsumption
4. All of above
Q.45) whichis followinga forging defect?
1. Wavy edges
2. Alligatoring
3. Coldshut
4. Zippercrack
Q.46) Identifythe type of surface crack
1. Flakes
2. Zippercrack
3. Wavy edge crack
4. Alligatoring
Q.47) Main advantage of Dye penetration
testingis
1. Internal structurescan be tested
2. Large area and volume canbe inspected
3. Permanentrecordgenerated
4. All of above
Q.48) Flakescaused by
1. Miss alignmentof the die halve.
2. Causedby the impropercoolingof the large
forging.
3. Irregularimpuritiesonthe surface of the
forging.
4. The unevendistributionof stress.
Q.49) Flutesare introducedin drill bits for
1. To carry away the chipsof metal.
2. To increase the cuttingstrength
3. To cool drill bit
4. To mountthe drill bit
Q.50) In givenfigureddrill bit, For what ‘A’
stand for?

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1. Chisel edge
2. Lip
3. Heal
4. Margin
Q.51) what is suitable helixand pointangle
for steel or cast iron?
1. 45 & 130
2. 30 & 118
3. 45 & 118
4. 30 & 130
Q.52) whichis followingstatementfalse for
reaming?
1. Reamingprocessenlarge the diameterof
hole.
2. Reamingtool ismulti-pointed.
3. Reamingprocessoftenperformedafter
drilling.
4. Reamingtool issingle-pointed.
Q.53) Identifythe drillingprocess
1. Counter-slinking
2. Counterboring
3. Spot facing
4. Countersinking
Q.54) Spot facing isperformedfor
1. To produce flatsurface.
2. To drill countersinkinghole.
3. To increase the size of hole
4. To smoothenthe internal hole surface.
Q.55) whichwork holdingdevice isused for
drill round bar?
1. Hand vice
2. Angle plate
3. V blockand clamp
4. Machine vice
Q.56) in givenfigure oflathe machine tool,
what ‘A’ is stand for?
1. End Relief angle.
2. Side relief angle.
3. Side rack angle.
4. Side cuttingedge angle.
Q.57) whichis the followingoperation
cannot performedon lathe machine?
1. Forming
2. Reaming
3. Boring
4. None of these.
Q.58) Material of drill bit is
1. Carbide
2. Molybdenum
3. Nickel
4. Tungsten
Q.59) Boring tool is
1. Single pointed
2. Two pointed
3. Three pointed
4. Multi pointed
Q.60) minimumpitch diameterof nut is
0.4500 cm and maximum pitch diameterof
screw is 0.4478 cm.
What is the Allowance?(Note- cm for
centimeter,mmfor millimeter,mfor meter)
1. 0.022 cm
2. 0.022 m
3. 0.022 mm
4. 0.022 inch
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Subjective Questions Marks 40
Solve any FOUR each carry 10 marks
Q.1) Explain different types of drilling machines?
Q.2) Write the short note on different type threads with figure.
Q.3) What are the different types of gear cutting methods? Explain one of them with neat Figure.
Q.4) what are the different defects in bearings?
Q.5) What are the safety precautions should have taken in workshop for different machines?
Q.6) What are the types of welding? Explain one of them briefly with neat figure.
Q.7) Write the applications for following machines
A. Lathe
B. Drilling
C. Buffing
D. Grinding
E. Shaping
Q.8) What are the different types of NDT methods? Explain one of them briefly.
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