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Engineering Mechanics

Engineering Mechanics
A pendulum which executes one beat per second is known as

Simple pendulum
Torsional pendulum
Compound pendulum
Second's pendulum

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Engineering Mechanics
A body of mass ‘m’ moving with a constant velocity ‘v’ strikes another body of same mass moving with same velocity but in opposite direction. The common velocity of both the bodies after collision is

4v
8v
v
2v

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Engineering Mechanics
The units of moment of inertia of mass are

m²/kg
kg/m
kg-m²
kg/m²

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Engineering Mechanics
If the gravitational acceleration at any place is doubled, then the weight of a body will be

g
2g
√2.g
g/2

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Engineering Mechanics
Moment of inertia of a triangular section of base (b) and height (h) about an axis passing through its C.G. and parallel to the base, is

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

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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

Ideal
Reversible
None of these
Non-reversible

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MORE MCQ ON Engineering Mechanics

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