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Theory of Machine

Theory of Machine
The flank of the tooth is the surface of the tooth __________ the pitch surface.

Above
None of these
At
Below

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Theory of Machine
In a flat collar pivot bearing, the moment due to friction is proportional to

(r₁³ - r₂³)/(r₁² - r₂²)
(r₁² - r₂²)/(r₁ + r₂)
(r₁² - r₂²)/(r₁ - r₂)
(r₁³ - r₂³)/(r₁ - r₂)

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Theory of Machine
Whirling speed of the shaft is the speed at which

Combination of transverse and longitudinal vibration occurs
Shaft tends to vibrate in longitudinal direction
Shaft tends to vibrate vigorously in transverse direction
Torsional vibrations occur

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Theory of Machine
Coriolis component acts

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

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Theory of Machine
The power transmitted by a belt is maximum when the maximum tension in the belt is _________ of centrifugal tension.

Three times
One-third
Double
Two-third

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

20°
14°
30°
10°

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