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Engineering Mechanics

Engineering Mechanics
Static friction is always __________ dynamic friction.

Greater than
None of these
Less than
Equal to

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Engineering Mechanics
For a self locking machine, the efficiency must be

Less than 50%
1
Greater than 50%
Equal to 50%

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Engineering Mechanics
A particle inside a hollow sphere of radius r, having coefficient of friction µ can rest up to height of

r/2
0.134 r
r/A
r/3

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Engineering Mechanics
The potential energy of a vertically raised body is __________ the kinetic energy of a vertically falling body.

Equal to
Greater than
Less than
None of these

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Engineering Mechanics
The law of motion involved in the recoil of gun is

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

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Engineering Mechanics
The moment of inertia of a solid sphere of mass ‘m’ and radius ‘r’ is

mr²
mr²/2
2mr²/5
2mr²/3

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MORE MCQ ON Engineering Mechanics

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