applied mechanics and graphic statics MCQs – Page 5

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

applied mechanics and graphic statics Mcqs
81. A disc of mass 4 kg, radius 0.5m and moment of inertia 3 kg-m2 rolls on a horizontal surface so that its center moves with speed 5 m/see. Kinetic energy of the disc is ___________________?
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A. 200 J

B. 50 J

C. 400 J

D. 150 J

82. A body is dropped from a height of 100 m and at the same time another body is projected vertically upward with a velocity of 10 m/sec. The two particles will____________________?
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A. meet after 1 sec

B. meet after 5 sec

C. never meet

D. meet after 10 sec
83. Joule is the unit of__________________?
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A. power

B. momentum

C. work

D. impulse

84. A particle is executing simple harmonic motion in a line 1.0 m long. If the time of one complete vibration is 1 sec, then the maximum velocity of the particle is___________________?
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A. 1.00 m/sec

B. 6.28 m/sec

C. 3.14 m/sec

D. 1.57 m/sec

85. The force polygon representing a set of forces in equilibrium is a_____________________?
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A. triangle

B. parallelogram

C. closed polygon

D. open polygon

86. Impulse can be obtained from a_________________?
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A. velocity-time diagram

B. force-time diagram

C. force-displacement diagram

D. velocity-displacement diagram

87. One Joule is equivalent to________________?
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A. 1 Newton metre

B. 1 kg wt metre

C. 9.81 Newton metre

D. 1 dyne metre

88. The ratio of unit of force in gravitational system to that in absolute system is__________________?
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A. 1

B. 1/g

C. g

D. none of the above

E. re g is acceleration due to gravity

89. A cube on a smooth horizontal surface___________________?
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A. cannot be in unstable equilibrium

B. can be in any of these states

C. cannot be in stable equilibrium

D. cannot be in neutral equilibrium

90. When a circular wheel rolls on a straight track, then the shape of body centrode and space centrode respectively are________________?
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A. circle and straight line

B. circle and parabola

C. straight line and parabola

D. straight line and circle

91. One Newton is equivalent to_________________?
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A. 981 dyne

B. 106 dyne

C. 107 dyne

D. 105 dyne
92. If a projectile is fired with an initial velocity of 10 m/sec at an angle of 60 to the horizontal, its horizontal and vertical velocity at the highest point of trajectory are___________________?
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A. 5 and 5V3 m/sec

B. 5 V3 m/sec and 0

C. 0 and 5 m/sec

D. 5 m/sec and 0
93. The maximum value of the horizontal range for a projectile projected with a velocity of 98 m/sec is__________________?
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A. 1960 m

B. 490 m

C. 980 m

D. 98 m

94. A stone is thrown up a slope of inclination 60 to the horizontal. At what angle to the slope must the stone be thrown so as to land as far as possible from the point of projection ?
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A. 45

B. 15

C. 30

D. 75

95. A circular disc rotates at n rpm. The angular velocity of a circular ring of same mass and radius as the disc and to have the same angular momentum is___________________?
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A. 2n rpm

B. n/2 rpm

C. n rpm

D. n/4 rpm

96. At the instantaneous center, the velocity of the moving lamina at any instant is_________________?
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A. varying

B. minimum

C. maximum

D. zero
97. Which of the following represents the state of neutral equilibrium ?
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A. none of the above

B. a cube resting on one edge

C. a smooth cylinder lying on a curved surface

D. a smooth cylinder lying on a convex surface

98. The total kinetic energy of a hoop of mass 2 kg and radius 4 m sliding with linear velocity 8 m/sec and angular velocity 5 radian/sec is_________________?
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A. 464 J

B. 64 J

C. 400 J

D. 89 J

99. For a given velocity of a projectile, the range is maximum when the angle of projection is___________________?
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A. 90

B. 0

C. 30

D. 45
100. A solid sphere of mass M and radius R rolls down a plane inclined at 0 with the horizontal. The acceleration of sphere is_______________?
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A. (1/3) g sin0

B. (3/7) g sin 0

C. (5/7) g sin0

D. (2/5) g sin 0