Engineering Mechanics - Interview Questions | Exam2Win

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76. 106. If n = number of members andy = number of joints, then for a perfect frame, n =

A. j-2

B. 2j-l

C. 2/-3

D. 3/-2

E. 2/ -4.

Explanation:

77. 99. A single force and a couple acting in the same plane upon a rigid body

A. balance each other

B. cannot balance each other

C. produce moment of a couple

D. are equivalent

E. none of the above.

Explanation:

78. 15. Which of the following do not have identical dimensions ?

A. Momentum and impulse

B. Torque and energy

C. Torque and work

D. Kinetic energy and potential energy

E. Moment of a force and angular momentum.

Explanation:

79. 107. A body moves, from rest with a constant acceleration of 5 m per sec. The distance covered in 5 sec is most nearly

A. 38 m

B. 62.5 m

C. 6 m

D. 124 m

E. 240 m.

Explanation:

80. 119. The C.G. of a right circular solid cone of height h lies at the following distance from the base

A. h/2

B. J/3

C. h/6

D. h/4

E. 3/i/5.

Explanation: