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Theory of Machine

Theory of Machine
At the nodal point in a shaft, the amplitude for torsional vibration will be

Infinity
Minimum
Maximum
Zero

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Theory of Machine
The frictional torque transmitted in a flat pivot bearing, considering uniform wear, is (where μ = Coefficient of friction, W = Load over the bearing, and R = Radius of bearing surface)

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

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Theory of Machine
When the pitching of a ship is upward, the effect of gyroscopic couple acting on it will be

To raise the stern and lower the bow
To move the ship towards starboard
To raise the bow and lower the stern
To move the ship towards port side

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Theory of Machine
A spring controlled governor is said to be unstable when the controlling force

Increases as the radius of rotation increases
Increases as the radius of rotation decreases
Decreases as the radius of rotation increases
Remains constant for all radii of rotation

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Theory of Machine
Cylindrical cams can be classified as

Reciprocating
None of these
Tangent
Circular

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Theory of Machine
In a simple train of wheels, the velocity ratio __________ the intermediate wheels.

Depends upon
Is independent of
Either A or B
None of these

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