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Theory of Machine

Theory of Machine
The coefficient of fluctuation of speed is __________ of maximum fluctuation of speed and the mean speed.

Difference
Sum
Ratio
Product

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Theory of Machine
The velocity of a flat-faced follower when it has contact with the flank of a circular arc cam, is given by

ωR cosθ
ωr₁ sinθ
ω(R - r₁) sinθ
ω(R - r₁) cosθ

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Theory of Machine
Coriolis component acts

Somewhere in between above two
Perpendicular to sliding surfaces
None of these
Along sliding surfaces

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Theory of Machine
In vibration isolation system, if ω/ωn > 1, then the phase difference between the transmitted force and the disturbing force is

90°
180°
270°
0°

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Theory of Machine
Which gear train is used for higher velocity ratios in a small space?

Reverted gear train
Simple gear train
Epicyclic gear train
Compound gear train

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Theory of Machine
When the body is suspended at the point of suspension, its periodic time and frequency will be ________ as compared to the body suspended at the point of percussion.

Four times
Two times
Same
None of these

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