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Engineering Mechanics

Engineering Mechanics
Moment of inertia of a triangular section of base (b) and height (h) about an axis through its base, is

bh3/4
bh3/12
bh3/36
bh3/8

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Engineering Mechanics
The force required to move the body up the plane will be minimum if it makes an angle with the inclined plane __________ the angle of friction.

Equal to
Less than
Greater than
None of these

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Engineering Mechanics
The skidding away of the vehicle on a level circular path can be avoided if the force of friction between the wheels and the ground is __________ the centrifugal force.

Equal to
Less than
None of these
Greater than

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Engineering Mechanics
The moment of inertia of a square of side a about its diagonal is

a²/8
a⁴/16
a³/12
a⁴/12

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Engineering Mechanics
In ideal machines, mechanical advantage is __________ velocity ratio.

Greater than
None of these
Less than
Equal to

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Engineering Mechanics
The rate of doing work is known as

Potential energy
Power
None of these
Kinetic energy

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