Theory of Machine
The height of a Watt's governor is

Inversely proportional to (speed)²
Inversely proportional to speed
Directly proportional to speed
Directly proportional to (speed)²

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Theory of Machine
A system of masses rotating in different parallel planes is in dynamic balance if the

Resultant couple is equal to zero
Resultant force is equal to zero
Resultant force and resultant couple are both equal to zero
Resultant force is numerically equal to the resultant couple, but neither of them need necessarily be zero

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