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Engineering Mechanics

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

r/2
0.134 r
r/3
r/A

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Engineering Mechanics
The moment of inertia of a square of side a about its diagonal is

a²/8
a⁴/16
a⁴/12
a³/12

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Engineering Mechanics
The moment of inertia of a thin disc of mass ‘m’ and radius ‘r’, about an axis through its center of gravity and perpendicular to the plane of the disc is

mr²/4
mr²/2
mr²/6
mr²/8

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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.

None of these
Do not lie
Lie
Either A or B

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Engineering Mechanics
The maximum mechanical advantage of a lifting machine is

1 - m
1 + m
m
1 / m

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Engineering Mechanics
In a single threaded worm and worm wheel, the number of teeth on the worm is 50. The diameter of the effort wheel is 100 mm and that of load drum is 50 mm. The velocity ratio is

400
200
50
100

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MORE MCQ ON Engineering Mechanics

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