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Engineering Mechanics

Engineering Mechanics
A smooth cylinder lying on its convex surface remains in __________ equilibrium.

Neutral
None of these
Unstable
Stable

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Engineering Mechanics
The friction experienced by a body, when in motion, is known as

Dynamic friction
Limiting friction
Rolling friction
Static friction

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Engineering Mechanics
The velocity ratio of a single purchase crab winch can be increased by

Increasing the radius of the load drum
Increasing the length of the handle
All of these
Increasing the number of teeth of the pinion

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Engineering Mechanics
A spherical body is symmetrical about its perpendicular axis. According to Routh's rule, the moment of inertia of a body about an axis passing through its centre of gravity is (where, M = Mass of the body, and S = Sum of the squares of the two semi-axes.)

None of these
MS/4
MS/3
MS/5

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

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Engineering Mechanics
The force required to move the body up the plane will be minimum if it makes an angle with the inclined plane __________ the angle of friction.

Less than
None of these
Greater than
Equal to

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