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Engineering Mechanics

Engineering Mechanics
The impact between two lead spheres is approximately equal to an __________ impact.

Solid
None of these
Elastic
Inelastic

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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

4 m
2 m
3 m
1 m

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Engineering Mechanics
The unit of angular velocity is

rad/s
Both (B) and (C)
m/min
Revolutions/min

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Engineering Mechanics
The maximum efficiency of a lifting machine is

m/V.R.
1/(m × V.R.)
1/m
V.R./m

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Engineering Mechanics
The power developed by a body acted upon by a torque 'T' Newton meter (N - m) and revolving at ω radian/s is given by

T.ω/60 (in watts)
T.ω/4500 (in kilowatts)
T.ω/75 (in kilowatts)
T.ω (in watts)

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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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