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Engineering Mechanics

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

πN/180
πN/60
2πN/60
2πN/180

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Engineering Mechanics
The acceleration of a particle moving with simple harmonic motion, at any instant is given by

ω2/y
ω.y
ω2.y
ω3.y

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Engineering Mechanics
The unit of angular acceleration is

m/s
N-m
m/s2
rad/s2

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Engineering Mechanics
In actual machines, mechanical advantage is _________ velocity ratio.

Less than
Greater than
None of these
Equal to

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Engineering Mechanics
The efficiency of a lifting machine is the ratio of

Output to the input
All of these
Mechanical advantage to the velocity ratio
Work done by the machine to the work done on the machine

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Engineering Mechanics
The acceleration of a body sliding down an inclined surface is

g tanθ
None of these
g cosθ
g sinθ

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MORE MCQ ON Engineering Mechanics

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