Theory of Machines

61. In automobiles the power is transmitted from gear box to differential through

1. bevel gear
2. universal joint
3. Hooke's joint
4. Knuckle joint
5. Oldham's coupling.

View answer

62. In elliptical trammels

1. all four pairs are turning
2. three pairs turning and one pair sliding
3. two pairs turning and two pairs sliding
4. one pair turning and three pairs sliding
5. all four pairs sliding.

View answer

63. In gramophones for adjusting the speed of the turntable, the following type of governor is commonly employed

1. Hartung governor
2. Wilson Hartnell governor
3. Pickering governor
4. Inertia governor
5. none of the above.

View answer

64. In higher pair, the relative motion is

1. purely turning
2. purely sliding
3. purely rotary
4. purely surface contact
5. combination of sliding and turning.

View answer

65. In its simplest form, a cam mechanism consists of following number of links

1. 1
2. 2
3. 3
4. 4
5. none.

View answer

66. In multi-V-belt transmission, if one of the belt is broken, we have to change the

1. broken belt
2. broken belt and its adjacent belts
3. all the belts
4. there is no need of changing any one as remaining belts can take care of transmission of load
5. all the weak belts.

View answer

67. In problem 47, the chain is constrained when

1. L.H.S. = R.H.S.
2. L.H.S. < R.H.S.
3. L.H.S. > R.H.S.
4. there is no such criterion for checking above requirement
5. none of the above.

View answer

68. In problem 47, the chain is unconstrained when

1. L.H.S. = R.H.S.
2. L.H.S. > R.H.S.
3. L.H.S. < R.H.S.
4. there is no such criterion for checking above requirement
5. none of the above.

View answer

69. In S.H.M., acceleration is proportional to

1. velocity
2. displacement
3. rate of change of velocity
4. all of the above
5. none of the above.

View answer

70. In S.H.M., the velocity vector w.r.t. displacement vector

1. leads by 90°
2. lags by 90°
3. leads by 180°
4. are in phase
5. could be anywhere.

View answer