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Theory of Machine

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

270°
90°
180°
0°

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Theory of Machine
The main disadvantage of the sliding pair is that it is

Bulky
Difficult to manufacture
Wears rapidly
Both (A) and (B) above

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Theory of Machine
When the sleeve of a Porter governor moves upwards, the governor speed

Remain unaffected
Decreases
First increases and then decreases
Increases

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Theory of Machine
The periodic time is given by (where ω = Angular velocity of the particle in rad/s)

2π/ω
ω/2π
π/ω
ω × 2π

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Theory of Machine
When two pulleys are connected by means of a cross belt drive, then both the pulleys will rotate in _________ directions.

Opposite
None of these
Same
Perpendicular

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Theory of Machine
When a point moves along a straight line, its acceleration will have

Radial component only
Radial and tangential components both
Tangential component only
Coriolis component only

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