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Engineering Mechanics

Engineering Mechanics
The unit of work in S.I. units is

joule
kg-m
Newton
erg

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Engineering Mechanics
If a body is acted upon by a number of coplanar non-concurrent forces, it may

All of these
Be completely at rest
Move in any one direction rotating about itself
Rotate about itself without moving

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Engineering Mechanics
The velocity ratio for the third system of pulleys is

2n - 1
n
2n
n²

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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

mr²/2
mr²/8
mr²/4
mr²/6

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Engineering Mechanics
The ratio of static friction to dynamic friction is always

Greater than one
Less than one
None of these
Equal to one

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Engineering Mechanics
A particle inside a hollow sphere of radius r, having coefficient of friction µ can rest up to height of

0.134 r
r/3
r/2
r/A

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MORE MCQ ON Engineering Mechanics

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