applied mechanics and graphic statics MCQs – Page 4

Practise focused applied mechanics and graphic statics questions with marked answers for exam preparation and subject revision.

applied mechanics and graphic statics Mcqs

61. A shell travelling with a horizontal velocity of 100 m/sec explodes and splits into two parts, one of mass 10 kg and the other of 15 kg. The 15 kg mass drops vertically downward with initial velocity of 100 m/sec and the 10 kg mass begins to travel at an angle to the horizontal of tan1 x, where x is______________________?
0

A. 3-May

B. 4-Mar

C. 5-Apr

D. 3/5

62. Instantaneous center is at infinity when the angular velocity is _________________?
0

A. minimum

B. maximum

C. zero

D. constant

63. The maximum pull in a cable, carrying a uniformly distributed load and supported at two ends which are at the same level, is at_____________________?
0

A. supports

B. quarter span

C. mid span

D. none of the above

64. In a lifting machine a weight of 5 kN is lifted through 200 mm by an effort of 0.1 kN moving through 15 m. The mechanical advantage and velocity ratio of the machine are respectively_____________________?
0

A. 75 and 50

B. 75 and 75

C. 50 and 50

D. 50 and 75

65. If a flywheel increases its speed from 10 rpm to 20 rpm in 10 seconds, then its angular acceleration is_____________________?
0

A. rad/sec 10

B. rad/sec 20

C. none of the above

D. rad/sec 30

66. A cylinder will slip on an inclined plane of inclination 0 if the coefficient of static friction between plane and cylinder is_____________________?
0

A. less than (2/3) tan 0

B. less than (1/3) tan 0

C. less than (2/3) sin 6

D. less than (1/3) sin 6

67. A stone was thrown vertically upwards from the ground with a velocity of 50 m/sec. After 5 seconds another stone was thrown vertically upwards from the same place. If both the stones strike the ground at the same time, then the velocity with which the second stone was thrown should be (Assume g = 10 m/sec2)______________________?
0

A. 50 m/sec

B. 40 m/sec

C. 25 m/sec

D. 15 m/sec

68. The angle of projection at which the horizontal range and maximum height of a projectile are equal to___________________?
0

A. tan1 (1/4)

B. tan- (4)

C. 45

D. tan-1 (2)

69. A particle moves in a straight line and its position is defined by the equation x = 6 t2 t3 where t is expressed in seconds and x in meters. The maximum velocity during the motion is_________________?
0

A. 6 m/sec

B. 24 m/sec

C. 12 m/sec

D. 48 m/sec

70. If the angular distance, 0 = 2t3 3t2, the angular acceleration at t = 1 sec. is__________________?
0

A. 4 rad/sec2

B. 12 rad/sec2

C. 1 rad/sec2

D. 6 rad/sec2

71. A uniform pyramid and a uniform prism of same height lie with their base on the surface. Which is more stable ?
0

A. pyramid

B. prism

C. both equally stable

D. none of the above

72. A funicular polygon cannot be made to pass through___________________?
0

A. two specified points

B. one specified point

C. more than three specified points

D. three specified points

73. A cable loaded with 10 kN/m of span is stretched between supports in the same horizontal line 100 m apart. If the central dip is 10 m, then the maximum and minimum pull in the cable respectively are____________________?
0

A. 1346.3 kN and 1500 kN

B. 1436.2 kN and 1500 kN

C. 1436.2 kN and 1250 kN

D. 1346.3 kN and 1250 kN

74. The angle of projection at which the horizontal range and maximum height of a projectile are equal to_____________________?
0

A. 56

B. 36

C. 76

D. 45

75. The time period of a simple pendulum depends on__________________?
0

A. length of the pendulum

B. correct answer is

C. mass of suspended particle

D. acceleration due to gravity </strong>

76. A rigid body is in a stable equilibrium if the application of any force__________________?
0

A. none of above

B. tends to lower the CG of the body

C. neither raises nor lowers the CG of the body

D. can raise the CG of the body but can not lower it

77. A ball moving on a smooth horizontal table hits a rough vertical wall, the coefficient of restitution between ball and wall being 1/3. The ball rebounds at the same angle. The fraction of its kinetic energy lost is___________________?
0

A. 3-Jan

B. 9-Jan

C. 8/9

D. 3-Feb

78. A force P of 50 N and another force Q of unknown magnitude act at 90 to each other. They are balanced by a force of 130 N. The magnitude of Q is__________________?
0

A. 120 N

B. 80 N

C. 60 N

D. 100 N

79. The diagram showing the point of application and line of action of forces in their plane is called____________________?
0

A. funicular diagram

B. space diagram

C. vector diagram

D. force diagram

80. In a simple harmonic motion, the position of equilibrium is always_________________?
0

A. neutral

B. none of the above

C. unstable

D. stable

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