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Engineering Mechanics

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

πd3/16
πd4/32
πd4/64
πd3/32

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Engineering Mechanics
The unit of moment of inertia of an area is

m4
kg-m2
kg/m2
kg-m-s2

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Engineering Mechanics
The moment of inertia of a thin rod of mass 'm' and length 'l', about an axis through its centre of gravity and perpendicular to its length is

ml2/4
ml2/12
ml2/ 6
ml2/8

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Engineering Mechanics
The rate of change of momentum is directly proportional to the impressed force, and takes place in the same direction in which the force acts. This statement is known as

Newton's second law of motion
Newton's third law of motion
None of these
Newton's first law of motion

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Engineering Mechanics
A body of mass ‘m’ moving with a constant velocity ‘v’ strikes another body of same mass moving with same velocity but in opposite direction. The common velocity of both the bodies after collision is

8v
v
2v
4v

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Engineering Mechanics
If the gravitational acceleration at any place is doubled, then the weight of a body will be

g
2g
√2.g
g/2

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MORE MCQ ON Engineering Mechanics

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