Question

When the sleeve of a Porter governor moves upwards, the governor speed

(a) increases

(b) decreases

(c) remains unaffected

The question was posed to me by my college professor while I was bunking the class.

The query is from Governors topic in division Governors of Machine Dynamics

Answer 1

The correct answer is (a) increases

Best explanation: When the loaded sleeve moves up and down the spindle, the frictional force acts on it in a direction opposite to that of the motion of sleeve. The + sign is used when the sleeve moves upwards or the governor speed increases and negative sign is used when the sleeve moves downwards or the governor speed decreases.