This document contains 50 multiple choice questions related to mechanisms and kinematics. The questions cover topics like types of kinematic pairs, degrees of freedom calculations, inversions of mechanisms, motion generation using different mechanisms, and spatial mechanisms. Sample questions ask about the mobility of double parallelogram mechanisms, inversions of slider crank chains, and the mechanism used in a shaping machine.

1. 01
T.O.M. C – 1
SIMPLE
MECHANISM

2. 02
T.O.M. QUESTION
SHEET
1A

3. 03
T.O.M. 1A – Q1
Inversion of a mechanism is
(a) changing of a higher pair to lower pair
(b) obtained by fixing different links in a
kinematic chain
(c) turning it upside down
(d) obtained by reversing the input and
output motion.

4. 04
T.O.M. 1A – Q2
The number of degrees of freedom of a
five link plane mechanism with five
revolute pairs as shown in Figure is :
(a) 3
(b) 4
(c) 2
(d) 1.

5. 05
T.O.M.
1A – Q3
Which of the following are the inversions
of double slider crank mechanism ?
1. old ham’s coupling
2. whitworth quick return motion
3. beam engine mechanism
4. elliptical trammels
(a) 1 and 2 (b) 1 and 4
(c) 1, 2 and 3 (d) 2, 3 and 4

6. 06
T.O.M. 1A – Q4
Which of the following is a higher pair ?
(a) belt and pulley
(b) turning pair
(c) screw pair
(d) sliding pair

7. 07
T.O.M.
1A – Q5
The mechanism forms a structure, when
the number of degrees of freedom (n) is
equal to :
(a) 0 (b) 1
(c) 2 (d) – 1

8. 08
T.O.M. 1A – Q6
In a kinematic chain, a quaternary joint
is equivalent to how many number of
binary joints :
(a) 1 (b) 2
(c) 3 (d) 4

9. 09
T.O.M. 1A – Q7
The lead screw of a lathe nut forms a :
(a) sliding pair (b) rolling pair
(c) screw pair (d) turning pair

10. 10
T.O.M.
1A – Q8
The Grubler’s criterion for determining
the degrees of freedom (n) of a
mechanism having plane motion is :
(a) n = (l – 1) – j
(b) n = 2(l – 1) – 2j
(c) n = 3(l – 1) – 2j
(d) n = 4(l – 1) – 3j
where l = Number of links and
j = Number of binary joints

11. 11
T.O.M. 1A – Q9
Which of the following pairs and
correctly matched ?
Mechanism Chains from
which derived
1. Whitworth quick 1. Single slider
return motion crank chain
2. Oldham’s coupling 2. Four bar chain
3. Scotch yoke 3. Double slider
crank chain
(a) 1 and 2 (b) 1, 2 and 3
(c) 1 and 3 (d) 2 and 3.

12. 12
T.O.M. 1A – Q10
In a single slider crank mechanism
when the slider is fixed, it gives :
(a) hand pump
(b) reciprocating engine
(c) quick return
(d) oscillating cylinder

13. 13
T.O.M. 1A – Q11
A four bar chain has :
(a) all turning pairs
(b) one turning pair and other sliding pairs
(c) one sliding pair and other turning pair
(d) all sliding pairs

14. 14
T.O.M. 1A – Q12
The number of inversions for a slider
crank mechanism is :
(a) 6 (b) 5
(c) 4 (d) 3

15. 15
T.O.M. 1A – Q13
Match List I with List II and select the correct
answer using the codes given below the lists :
List I List II
P. Sliding pair 1. A road roller rolling
over the ground
Q. Revolute pair 2. Crank shaft in a
journal bearing in
an engine
R. Rolling pair 3. Ball and socket joint
S. Spherical pair 4. Piston and cylinder
5. Nut and screw
P Q R S P Q R S
(a) 2 5 4 3 (b) 3 2 4 1
(c) 4 2 1 3 (d) 2 3 5 1

16. 16
T.O.M. 1A – Q14
The mechanism used in a shaping
machine is :
(a) a closed 4-bar chain having 4
revolute pairs
(b) a closed 6-bar chain having 6
revolute pairs
(c) a closed 4-bar chain having 2
revolute and 2 sliding pairs
(d) an inversion of the single
slider-crank chain

17. 17
T.O.M.
1A – Q15
Match List I (Type of Mechanism) with List II
(Motion achieved) and select the correct
answer using the codes given below the lists :
List I List II
P. Scott–Russel 1. Intermittent motion
mechanism
Q. Geneva 2. Quick return motion
mechanism
R. Off-set slider- 3. Simple harmonic
crank mechanism motion
S. Scotch Yoke 4. Straight line motion
mechanism
P Q R S P Q R S
(a) 2 3 1 4 (b) 3 2 4 1
(c) 4 1 2 3 (d) 4 3 1 2

18. 18
T.O.M. 1A – Q16
Consider the following statements :
1. Round bar in a round hole forms a
turning pair.
2. A square bar in a square hole forms
a sliding pair.
3. A vertical shaft in a footstep bearing
forms a successful constraint.
Which of these statements are
correct?
(a) 1 and 3 (b) 1 and 2
(c) 2 and 3 (d) 1, 2 and 3

19. 19
T.O.M. 1A – Q17
Which mechanism produces intermittent
rotary motion from continuous rotary
motion?
(a) whit worth mechanism
(b) Scotch Yoke mechanism
(c) Geneva mechanism
(d) Elliptical trammel

20. 20
T.O.M. 1A – Q18
Which amongst the following constitutes
a higher pair?
(a) a ball and socket joint
(b) cycle wheels turning on their axles
(c) universal joint
(d) toothed gearing

21. 21
T.O.M. 1A – Q19
A man is climbing up a ladder which is
resting against a vertical wall. When he
was exactly half way up, the ladder
started slipping. The path traced by the
man is:
(a) Parabola (b) Hyperbola
(c) Ellipse (d) Circle

22. 22
T.O.M. QUESTION
SHEET
1B

23. 23
T.O.M. 1B – Q1
Scotch yoke mechanism is used to
generate
(a) sine functions (b) square roots
(c) logarithms (d) inversions

24. 24
T.O.M. 1B – Q2
The whit-worth quick return
mechanism is formed in a slider crank
chain when the :
(a) coupler link is fixed
(b) longest link is fixed
(c) slider is fixed
(d) smallest link is fixed

25. 25
T.O.M.
1B – Q3
Match List I with List II and select the correct
answer using the codes given below the lists :
List I List II
P. 1. Hand pump
Q. 2. Compressor
R. 3. Whitworth quick return
motion mechanism
S. 4. Oscillator cylinder engine
P Q R S P Q R S
(a) 1 3 4 2 (b) 2 4 3 1
(c) 2 3 4 1 (d) 1 4 3 2

26. 26
T.O.M.
1B – Q4
The crank and slotted lever quick-return
motion mechanism is shown in figure.
The length of links O1O2, O1C and O2A
are 10cm., 20cm. and 5cm. respectively:
The quick return ratio of the mechanism
is :
(a) 3.0
(b) 2.75
(c) 2.5
(d) 2.0
C
A
O2
O1

27. 27
T.O.M.
1B – Q5
Which of the mechanisms shown above
do/does not have single degree of freedom?
1. 2.
3. 4.
(a) 3 and 4 (b) 2 and 3
(c) 3 only (d) 4 only

28. 28
T.O.M. 1B – Q6
ABCD is a mechanism with link lengths AB
= 200, BC = 300, CD = 400 and DA =
350. Which one of the following links
should be fixed for the resulting
mechanism to be a double crank
mechanism? (All length are in mm)
(a) AB (b) BC
(c) CD (d) DA

29. 29
T.O.M.
1B – Q7
A planar mechanism has 8 links and 10
rotary joints. The number of degrees of
freedom of the mechanism, using
Gruebler’s criterion, is
(a) 0 (b) 1
(c) 2 (d) 3

30. 30
T.O.M. 1B – Q8
Which of the following are examples of
forced closed kinematic pairs :
1. Cam and Roller mechanism
2. Door closing mechanism
3. Slider crank mechanism
4. Automotive clutch operating
mechanism
(a) 1, 2 and 4 (b) 1 and 3
(c) 2, 3 and 4 (d) 1, 2, 3 and 4

31. 31
T.O.M. 1B – Q9
The lengths of the links of a 4-bar
linkage with revolute pairs only are p, q,
r and s units. Given that p < q < r < s.
Which of these links should be the
fixed one, for obtaining a “double
crank” mechanism?
(a) links of length p
(b) links of length q
(c) link of length r
(d) link of length s

32. 32
T.O.M. 1B – Q10
Match the following with respect to spatial
mechanisms:
TYPE OF JOINT
P. Revolute Q. Cylindrical
R. Spherical
DEGREES OF CONSTRAINT/RESTRAINT
1. Three 2. Five
3. Four 4. Two 5. Zero
(a) P-1, Q-3, R-1 (b) P-5, Q-4, R-3
(c) P-2, Q-3, R-1 (d) P-4, Q-5, R-3

33. 33
T.O.M. 1B – Q11
A double parallelogram mechanism is
shown in the figure. Note that PQ is a
single link. The mobility of the mechanism
is :
(a) – 1
(b) 0
(c) 1
(d) 2

34. 34
T.O.M. 1B – Q12
A planar closed kinematic chain is
formed with rigid links PQ = 2.0 Q, QR =
3.0 m, RS = 2.5m and SP = 2.7m with all
revolute joints.
The link to be fixed to obtain rocker
(rocker-rocker) mechanism is :
(a) PQ (b) QR
(c) RS (d) SP

35. 35
T.O.M. 1B – Q13
The number of degrees of freedom of an
epicyclic gear train is :
(a) zero (b) one
(c) two (d) three

36. 36
T.O.M. 1B – Q14
Hydraulic oil in a hydraulic press
constitutes :
(a) Rigid link (b) Flexible link
(c) Fluid link (d) None of the above

37. 37
T.O.M. 1B – Q15
Which mechanism produces mathematically
exact straight line motion :
(a) Watt’s mechanism
(b) Peaucellier’s mechanism
(c) Ackerman mechanism
(d) Grashopper mechanism

38. 38
T.O.M. 1B – Q16
In four bar mechanism according to
Grashof’s law the link which make complete
revolution is …………..
(a) crank (b) lever
(c) frame (d) couple

39. 39
T.O.M. 1B – Q17
Use l = 2 p – 4 and J = (3l / 2) – 2 for higher
pair following assumption is correct
(a) Each higher pair is equal to two lower
pair
(b) Each higher pair is equal to two pair with
additional link
(c) Each higher pair is equal to each lower
pair with additional link
(d) Each higher pair is equal to each lower
pair

40. 40
T.O.M. 1B – Q18
The purpose of beam engine is to convert
…………..
(a) rotary motion into oscillatory motion
(b) rotary motion to reciprocating motion
(c) reciprocating to rotary motion
(d) reciprocating to oscillatory motion

41. 41
T.O.M. 1B – Q19
Automobile Steering gear is an example
of
(a) Higher pair (b) Sliding pair
(c) Turning pair (d) Lower pair

42. 42
T.O.M. 1B – Q20
A device which converts the available
energy into useful work is known as :
(a) Structure (b) Machine
(c) Mechanism (d) None of above

43. 43
T.O.M. 1B – Q21
Kinematic pair constituted by cam and
follower mechanism is :
(a) Higher and open type
(b) Lower and open type
(c) Lower and closed type
(d) Higher and closed type

44. 44
T.O.M. 1B – Q22
Piston, piston rod and cross-head of a
steam engine constitute
(a) one link
(b) two links
(c) three links
(d) Do not constitute any link

45. 45
T.O.M. 1B – Q23
The piston rod of a steam engine is
usually connected by the cross head by
means of
(a) Bolted joint (b) Cotter joint
(c) Universal joint (d) Knuckle joint

46. 46
T.O.M.
1B – Q24
Which of the following type of shafts can
be connected using Oldhm’s coupling?
(a) Parallel shafts
(b) Mutually perpendicular shafts
(c) Collinear shafts
(d) Shafts rotating in opposite directions

47. 47
T.O.M.
1B – Q25
In offset slider crank mechanism, the
ratio of the working stroke time to the
return stroke time is
(a) less than 1
(b) equal to 1
(c) more than 1
(d) no specific range or value

48. 48
T.O.M. 1B – Q26
If the number of links in a mechanism is
8, the number of pairs would be :
(a) 6 (b) 8
(c) 10 (d) 4

49. 49
T.O.M. 1B – Q27
Which one of the following conversions
is used by a law–sprinkler which is a four
bar mechanism?
(a) Reciprocating motion to rotary motion
(b) Reciprocating motion to oscillatory
motion
(c) Rotary motion to oscillatory motion
(d) Oscillatory motion to rotary motion

50. 50
T.O.M. 1B – Q28
The crank radius of a slider crank mechanism is 10
cm. If the crank radius is increased to 12 cm, the
stroke length will increase by
(a) 20% (b) 12%
(c) 5% (d) 10%