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Engineering Mechanics

Engineering Mechanics
The velocity ratio of a first system of pulleys with 4 pulleys is

8
20
16
4

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Engineering Mechanics
The velocity of a body on reaching the ground from a height h, is

√(gh)
√(2gh)
2g.√h
2.√(gh)

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Engineering Mechanics
The time of flight (t) of a projectile on a horizontal plane is given by

t = 2u. cosα/g
t = 2u. sinα/g
t = 2u. tanα/g
t = 2u/g.sinα

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Engineering Mechanics
The algebraic sum of moments of the forces forming couple about any point in their plane is

Both of above are correct
Constant
Both of above are wrong
Equal to the moment of the couple

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Engineering Mechanics
The centre of gravity of a right circular solid cone is at a distance of _________ from its base, measured along the vertical axis.(where h = Height of a right circular solid cone.)

h/2
h/4
h/3
h/6

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Engineering Mechanics
The bodies which rebound after impact are called

Inelastic bodies
Neither elastic nor inelastic bodies
Elastic bodies
None of these

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MORE MCQ ON Engineering Mechanics

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