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Engineering Mechanics

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

3mr²/5
3mr²/10
4mr²/5
2mr²/5

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Engineering Mechanics
A machine having an efficiency less than 50%, is known as

Reversible machine
Ideal machine
Non-reversible machine
Neither reversible nor non-reversible machine

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Engineering Mechanics
A redundant frame is also called __________ frame.

Perfect
None of these
Deficient
Imperfect

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Engineering Mechanics
The angular velocity (in rad/s) of a body rotating at N revolutions per minute is

πN/180
2πN/60
2πN/180
πN/60

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

mr²
2mr²/5
mr²/2
2mr²/3

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Engineering Mechanics
When the lift is moving upwards with some acceleration, the pressure exerted by a man is __________ to its acceleration.

Cube root
None of these
Inversely proportional
Directly proportional

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MORE MCQ ON Engineering Mechanics

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