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Theory of Machine

Theory of Machine
The lower pairs are _________ pairs.

Self-closed
Friction closed
Force-closed
None of these

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Theory of Machine
The method of direct and reverse cranks is used in engines for

Balancing of forces and couples
Kinematic analysis
Vibration analysis
The control of speed fluctuations

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Theory of Machine
The periodic time of a compound pendulum is __________ when the distance between the point of suspension and the center of gravity is equal to the radius of gyration of the body about its center of gravity.

Maximum
None of these
Zero
Minimum

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Theory of Machine
A rotary internal combustion engine has __________ cylinders.

Four
Six
Seven
Five

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Theory of Machine
In a Hartnell governor, the compression of the spring is __________ the lift of the sleeve.

Equal to
Greater than
Less than
None of these

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Theory of Machine
The sense of Coriolis component is such that it

Leads the sliding velocity vector by 90°
Is along the sliding velocity vector
Leads the sliding velocity vector by 180°
Lags the sliding velocity vector by 90°

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