Theory of Machine
The two elements of a pair are said to form a _________ when they permit relative motion between them.

Kinematic pair
Open pair
None of these
Sliding pair

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Theory of Machine
The maximum fluctuation of speed is the

Sum of maximum and minimum speeds
Difference of minimum fluctuation of speed and the mean speed
Difference of the maximum and minimum speeds
Variations of speed above and below the mean resisting torque line

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