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Theory of Machine

Theory of Machine
With usual notations for different parameters involved, the maximum fluctuations of energy for a flywheel is given by

2ECS²
EC S/2
2ECS
2E²CS

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

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Theory of Machine
The moment on the pulley which produces rotation is called

Momentum
Moment of momentum
Inertia
Torque

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Theory of Machine
The frequency of damped vibrations with viscous damping is ________ the frequency of undamped vibrations.

More than
Same as
None of these
Less than

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

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

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Theory of Machine
In gramophones for adjusting the speed of the turntable, the following type of governor is commonly employed

Inertia governor
Wilson Hartnell governor
Pickering governor
Hartung governor

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