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Engineering Mechanics

Engineering Mechanics
Moment of inertia of a circular section about its diameter (d) is

πd4/32
πd3/32
πd4/64
πd3/16

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Engineering Mechanics
The wheels of a moving car possess

Kinetic energy of translation only
Potential energy only
Kinetic energy of rotation only
Kinetic energy of translation and rotation both

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Engineering Mechanics
When a body of mass 'm' attains a velocity 'v' from rest in time 't', then the kinetic energy of translation is

mgv2
0.5 mv2
0.5 mgv2
mv2

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Engineering Mechanics
A smooth cylinder lying on a __________ is in neutral equilibrium.

Horizontal surface
Curved surface
Convex surface
None of these

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Engineering Mechanics
The C.G. of a solid hemisphere lies on the central radius 3r

At distance — from the plane base 3r
At distance — from the plane base
At distance — from the plane base 3r
At distance — from the plane base 3r

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Engineering Mechanics
The resultant of two forces P and Q (such that P > Q) acting along the same straight line, but in opposite direction, is given by

P + Q
P / Q
P - Q
Q / P

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