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Theory of Machine

Theory of Machine
The maximum value of the pressure angle in case of cam is kept as

20°
30°
10°
14°

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

Increases
First increases and then decreases
Decreases
Remain unaffected

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Theory of Machine
In a radial cam, the follower moves

In a direction perpendicular to the cam axis
In any direction irrespective of the cam axis
In a direction parallel to the cam axis
Along the cam axis

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

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

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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.

Same
None of these
Two times
Four times

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Theory of Machine
If ‘D₁’ and ‘D₂’ be the diameters of driver and driven pulleys, then belt speed is proportional to

D₁
D₁.D₂
D₁/D₂
D₂/D₁

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