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Engineering Mechanics

Engineering Mechanics
The velocity ratio for the first system of pulleys is (where n is the number of pulleys.)

n
2n - 1
2n
n²

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Engineering Mechanics
Mass moment of inertia of a thin rod about its one end is ___________ the mass moment of inertia of the same rod about its mid-point

Four times
Thrice
Same as
Twice

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Engineering Mechanics
A ladder is resting on a smooth ground and leaning against a rough vertical wall. The force of friction will act

Downward at its upper end
Upward at its upper end
Away from the wall at its upper end
Towards the wall at its upper end

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Engineering Mechanics
The mechanical advantage of a lifting machine is the ratio of

All of these
Distance moved by effort to the distance moved by load
Load lifted to the effort applied
Output to the input

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Engineering Mechanics
The maximum acceleration of a particle moving with simple harmonic motion is

ωr
ω
ω²r
ω/r

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Engineering Mechanics
In order to double the period of simple pendulum, the length of the string should be

Halved
None of these
Quadrupled
Doubled

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MORE MCQ ON Engineering Mechanics

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