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Engineering Mechanics

Engineering Mechanics
The moment of inertia of a solid cylinder of mass 'm', radius 'r' and length 'l' about the longitudinal axis or polar axis is

mr²/4
mr²/2
mr²/8
mr²/6

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

Neutral
Stable
Unstable
None of these

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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

5
20
10
40

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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

100 N
500 N
20 N
None of these

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Engineering Mechanics
The linear acceleration (a) of a body rotating along a circular path of radius (r) with an angular acceleration of α rad/s2, is

a = α.r
None of these
a = r / α
a = α/ r

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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.

Lie
None of these
Either A or B
Do not lie

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