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Engineering Mechanics

Engineering Mechanics
The unit of moment of inertia of an area is

kg-m2
kg-m-s2
kg/m2
m4

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Engineering Mechanics
The motion of a wheel of a car is

Combined translation and rotational
Purely rotational
None of the listed here
Purely translation

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Engineering Mechanics
The moment of inertia of a square of side a about its diagonal is

a⁴/12
a⁴/16
a²/8
a³/12

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Engineering Mechanics
The rate of doing work is known as

Potential energy
Kinetic energy
Power
None of these

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Engineering Mechanics
The motion of a particle round a fixed axis is

Translatory
Rotary
Translatory as well as rotary
Circular

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Engineering Mechanics
A body of weight 'W' is required to move up on rough inclined plane whose angle of inclination with the horizontal is 'α'. The effort applied parallel to the plane is given by (where μ = tanφ = Coefficient of friction between the plane and the body.)

P = W (sinα + μcosα)
P = W (cosα + μsinα)
P = W tanα
P = W tan (α + φ)

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