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Theory of Machine

Theory of Machine
In a shaper mechanism, the Coriolis component of acceleration will

Exist
Depend on position of crank
Not exist
None of these

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Theory of Machine
Which of the following is used to control the speed variations of the engine caused by the fluctuations of the engine turning moment?

Meyer's expansion valve
Flywheel
D-slide valve
Governor

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Theory of Machine
The example of lower pair is

Straight line motion mechanisms
Shaft revolving in a bearing
Automobile steering gear
All of these

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Theory of Machine
The factor which affects the critical speed of a shaft is

Span of shaft
Diameter of disc
All of the listed here
Eccentricity

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Theory of Machine
The frictional torque transmitted in a conical pivot bearing, considering uniform pressure, is (where R = Radius of shaft, and α = Semi-angle of the cone)

(2/3) μ W R cosecα
(3/4) μ W R cosecα
μ W R cosecα
(1/2) μ W R cosecα

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

14°
30°
10°
20°

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