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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

mr²/6
mr²/8
mr²/4
mr²/2

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Engineering Mechanics
If u₁ and u₂ are the velocities of two moving bodies in the same direction before impact and v₁ and v₂ are their velocities after impact, then coefficient of restitution is given by

(u₂ + u₁)/(v₂ + v₁)
(v₂ - v₁)/(u₁ - u₂)
(v₁ - v₂)/(u₁ - u₂)
(u₁ - u₂)/(v₁ - v₂)

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Engineering Mechanics
The maximum efficiency of a lifting machine is

V.R./m
1/m
1/(m × V.R.)
m/V.R.

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Engineering Mechanics
The velocity of a particle moving with simple harmonic motion is _________ at the mean position.

Zero
None of these
Minimum
Maximum

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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 center of gravity of a quadrant of a circle lies along its central radius (r) at a distance of

0.6 r
0.7 r
0.8 r
0.5 r

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MORE MCQ ON Engineering Mechanics

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