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Theory of Machine

Theory of Machine
The amplitude of vibration is always __________ the radius of the circle.

Less than
Equal to
Greater than
None of these

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Theory of Machine
In a four stroke I.C. engine, the turning moment during the compression stroke is

Negative throughout
Positive throughout
Negative during major portion of the stroke
Positive during major portion of the stroke

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Theory of Machine
For simple harmonic motion of the of follower, a cosine curve represents

All of these
Acceleration diagram
Displacement diagram
Velocity diagram

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Theory of Machine
The example of successfully constrained motion is a

Piston reciprocating inside an engine cylinder
Motion of an I.C. engine valve
All of these
Motion of the shaft between a footstep bearing

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

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

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Theory of Machine
If the rotating mass of a rim type flywheel is distributed on another rim type flywheel whose mean radius is half the mean radius of the former, then energy stored in the latter at the same speed will be

Same as the first one
One fourth of the first one
One and a half times the first one
Four times the first one

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