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Engineering Mechanics

1.

The weight of a body is due to

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2.

A number of forces acting at a point will be in equilibrium, if

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3.

The unit of force in S.I. units is

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4.

Non-coplanar non-concurrent forces are those forces which

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5.

Which of the following is not the unit of power?

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6.

D' Alembert's principle is used for

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7.

For any system of coplanar forces, the condition of equilibrium is that the

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8.

The resultant of the following three couples 20 kg force, 0.5 m arm, +ve sense 30 kg force, 1 m arm, -ve sense 40 kg force, 0.25 m arm, +ve sense having arm of 0.5 m will be

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9.

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.)

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10.

Limiting force of friction is the