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Engineering Mechanics

Engineering Mechanics
Mass moment of inertia of a thin rod about its one end is ___________ the mass moment of inertia of the same rod about its mid-point

Twice
Thrice
Four times
Same as

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

Solid
Inelastic
None of these
Elastic

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Engineering Mechanics
The law of the machine is (where P = Effort applied to lift the load, m = A constant which is equal to the slope of the line, W = Load lifted, and C = Another constant which represents the machine friction.)

P = mW - C
P = C - mW
P = mW + C
P = m/W + C

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Engineering Mechanics
The equivalent length of a simple pendulum which gives the same frequency as compound pendulum is

(kG² + h²)/h
h²/(kG² + h²)
h/(kG² + h²)
(kG² + h²)/h²

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Engineering Mechanics
The ratio of limiting friction and normal reaction is known as

Coefficient of friction
Angle of repose
Angle of friction
Sliding friction

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

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

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