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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
None of these
Equal to
Less than

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Engineering Mechanics
The center of percussion of a solid cylinder of radius ‘r’ resting on a horizontal plane will be

3r/2
r/2
2r/3
r/A

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Engineering Mechanics
The velocity ratio of a simple wheel and axle with D and d as the diameters of effort wheel and load axle, is

D - d
D × d
D / d
D + d

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Engineering Mechanics
The centre of percussion is below the centre of gravity of the body and is at a distance equal to

kG2/h
h/kG
h2/kG
h × kG

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Engineering Mechanics
The centre of gravity of an isosceles triangle with base (p) and sides (q) from its base is

[√(4p² - q²)]/6
(4p² - q²)/6
(p² + q²)/4
(p² - q²)/4

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Engineering Mechanics
The force, by which the body is attracted, towards the center of the earth, is called

Impulsive force
Mass
Momentum
Weight

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