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Engineering Mechanics

Engineering Mechanics
The moment of inertia of a square of side (a) about an axis through its center of gravity is

a4/12
a4/4
a4/36
a4/8

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Engineering Mechanics
A smooth cylinder lying on its convex surface remains in __________ equilibrium.

Neutral
Unstable
Stable
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 (sinα + μcosα)
P = W (cosα + μsinα)

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Engineering Mechanics
The forces which meet at one point, but their lines of action __________ on the same plane, are Known as non-coplanar concurrent forces.

Either A or B
Lie
Do not lie
None of these

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

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

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Engineering Mechanics
Static friction is always __________ dynamic friction.

Less than
Greater than
None of these
Equal to

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MORE MCQ ON Engineering Mechanics

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