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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

0.134 r
r/2
r/3
r/A

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Engineering Mechanics
The maximum mechanical advantage of a lifting machine is

1 - m
1 + m
1 / m
m

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

None of these
Minimum
Zero
Maximum

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Engineering Mechanics
The periodic time of a particle with simple harmonic motion is _________ proportional to the angular velocity.

Inversely
Directly
Square root
None of these

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Engineering Mechanics
If a given force (or a given system of forces) acting on a body __________ the position of the body, but keeps it in equilibrium, then its effect is to produce internal stress in the body.

Does not change
None of these
Changes periodically
Change

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Engineering Mechanics
The periodic time (T) is given by (where, ω = Angular velocity of particle in rad/s.)

π/ω
2π × ω
ω/2π
2π/ω

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