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Engineering Mechanics

Engineering Mechanics
The potential energy of a vertically raised body is __________ the kinetic energy of a vertically falling body.

Greater than
Less than
Equal to
None of these

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

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

Circular
Translatory as well as rotary
Rotary
Translatory

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Engineering Mechanics
A differential pulley block has larger and smaller diameters of 100 mm and 80 mm respectively. Its velocity ratio is

20
10
40
5

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Engineering Mechanics
The force applied on a body of mass 100 kg to produce an acceleration of 5 m/s2, is

500 N
100 N
None of these
20 N

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Engineering Mechanics
The amplitude is always __________ radius of the circle.

Equal to
Less than
None of these
Greater than

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