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Engineering Mechanics

Engineering Mechanics
The moment of inertia of a thin spherical shell of mass m and radius r, about its diameter is

2mr²/5
3mr²/5
mr²/3
2mr²/3

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Engineering Mechanics
One joule is equal to

100 N-m
0.1 N-m
1 N-m
10 N-m

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Engineering Mechanics
The angle between two forces when the resultant is maximum and minimum respectively are

90° and 180°
180° and 0°
90° and 0°
0° and 180°

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Engineering Mechanics
A rubber ball is dropped from a height of 2 m. If there is no loss of velocity after rebounding, the ball will rise to a height of

3 m
2 m
1 m
4 m

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Engineering Mechanics
A screw jack used for lifting the loads is

An ideal machine
None of these
A non-reversible machine
A reversible machine

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Engineering Mechanics
A weight of 1000 N can be lifted by an effort of 80 N. If the velocity ratio is 20, the machine is

Non-reversible
Reversible
Ideal
None of these

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MORE MCQ ON Engineering Mechanics

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