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Engineering Mechanics

Engineering Mechanics
The acceleration of a body sliding down an inclined surface is

g tanθ
g cosθ
None of these
g sinθ

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Engineering Mechanics
The friction experienced by a body, when in motion, is known as

Static friction
Dynamic friction
Rolling friction
Limiting friction

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Engineering Mechanics
The velocity ratio of a differential pulley block with D and d as the diameters of larger and smaller pulley, is

D/(D + d)
2D/(D + d)
D/(D - d)
2D/(D - d)

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

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Engineering Mechanics
In order to double the period of simple pendulum, the length of the string should be

Halved
Doubled
Quadrupled
None of these

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

None of these
Curved surface
Convex surface
Horizontal surface

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MORE MCQ ON Engineering Mechanics

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