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Engineering Mechanics

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

Horizontal surface
Convex surface
None of these
Curved surface

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Engineering Mechanics
A weight of 1000 N can be lifted by an effort of 80 N. If the velocity ratio is 20, the machine is

Non-reversible
None of these
Ideal
Reversible

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

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Engineering Mechanics
The maximum frictional force, which comes into play, when a body just begins to slide over the surface of the other body, is known as

Limiting friction
Static friction
Coefficient of friction
Dynamic friction

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Engineering Mechanics
The equivalent length of a simple pendulum which gives the same frequency as compound pendulum is

h²/(kG² + h²)
(kG² + h²)/h
h/(kG² + h²)
(kG² + h²)/h²

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

Resolution
Composition
Decomposition
None of these

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MORE MCQ ON Engineering Mechanics

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