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Engineering Mechanics

Engineering Mechanics
The moment of inertia of a solid cone of mass ‘m’ and base radius ‘r’ about its vertical axis is

2mr²/5
3mr²/5
4mr²/5
3mr²/10

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Engineering Mechanics
Coefficient of friction depends upon

Nature of surface only
Area of contact only
None of these
Both (A) and (B)

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Engineering Mechanics
The forces which do not meet at one point and their lines of action do not lie on the same plane are known as

Coplanar concurrent forces
Non-coplanar concurrent forces
None of these
Coplanar non-concurrent forces

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Engineering Mechanics
The C.G. of a solid hemisphere lies on the central radius 3r

At distance — from the plane base 3r
At distance — from the plane base 3r
At distance — from the plane base
At distance — from the plane base 3r

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Engineering Mechanics
The law of motion involved in the recoil of gun is

Newton's first law of motion
None of these
Newton's third law of motion
Newton's second law of motion

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Engineering Mechanics
The center of gravity of a quadrant of a circle lies along its central radius (r) at a distance of

0.7 r
0.8 r
0.6 r
0.5 r

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MORE MCQ ON Engineering Mechanics

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