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Engineering Mechanics

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

2mr²/5
mr²/2
mr²
2mr²/3

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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
Three forces acting on a rigid body are represented in magnitude, direction and line of action by the three sides of a triangle taken in order. The forces are equivalent to a couple whose moment is equal to

Half the area of the triangle
Area of the triangle
Twice the area of the triangle
None of these

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

None of these
Neutral
Unstable
Stable

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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
Rolling friction
Kinematic friction
Sliding friction

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Engineering Mechanics
A body of mass ‘m’ moving with a constant velocity ‘v’ strikes another body of same mass moving with same velocity but in opposite direction. The common velocity of both the bodies after collision is

2v
4v
8v
v

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MORE MCQ ON Engineering Mechanics

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