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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

Four times
Twice
Same as
Thrice

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

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Engineering Mechanics
The maximum frictional force which comes into play when a body just begins to slide over another surface is called

Limiting friction
Kinematic friction
Sliding friction
Rolling friction

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Engineering Mechanics
During elastic impact, the relative velocity of the two bodies after impact is __________ the relative velocity of the two bodies before impact.

Equal and opposite to
Equal to
Greater than
Less than

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Engineering Mechanics
The forces, which meet at one point and their lines of action also lie on the same plane, are known as

Coplanar concurrent forces
Non-coplanar non-concurrent forces
Coplanar non-concurrent forces
Non-coplanar concurrent forces

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Engineering Mechanics
The moment of inertia of a solid sphere of mass ‘m’ and radius ‘r’ is

2mr²/3
mr²/2
2mr²/5
mr²

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