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Engineering Mechanics

Engineering Mechanics
A smooth cylinder lying on a __________ is in neutral equilibrium.

Convex surface
Curved surface
Horizontal surface
None of these

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Engineering Mechanics
The process of finding out the resultant force is called __________ of forces.

Composition
None of these
Resolution
Decomposition

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Engineering Mechanics
The resultant of two forces P and Q (such that P > Q) acting along the same straight line, but in opposite direction, is given by

P - Q
Q / P
P + Q
P / Q

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

Coefficient of friction
Sliding friction
Angle of repose
Angle of friction

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Engineering Mechanics
Centre of gravity of a solid cone lies on the axis at the height

One third of the total height above base
Three eighth of the total height above the base
One-half of the total height above base
One fourth of the total height above base

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Engineering Mechanics
The moment of inertia of a thin disc of mass ‘m’ and radius ‘r’, about an axis through its center of gravity and perpendicular to the plane of the disc is

mr²/6
mr²/2
mr²/8
mr²/4

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