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Engineering Mechanics

Engineering Mechanics
Moment of inertia is the

All of these
Second moment of mass
Second moment of area
Second moment of force

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Engineering Mechanics
The moment of inertia of a solid cone of mass ‘m’ and base radius ‘r’ about its vertical axis is

3mr²/10
2mr²/5
3mr²/5
4mr²/5

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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.

None of these
Less than
Greater than
Equal to

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Engineering Mechanics
The wheels of a moving car possess

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

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Engineering Mechanics
The ratio of limiting friction and normal reaction is known as

Coefficient of friction
Angle of friction
Sliding friction
Angle of repose

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Engineering Mechanics
The centre of percussion is below the centre of gravity of the body and is at a distance equal to

h × kG
h2/kG
h/kG
kG2/h

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