Question

Consider two governors A and B running at the same speed. When this speed increases or decreases by a certain amount, the lift of the sleeve of governor A is greater than the lift of the sleeve of governor B. Which of the following statement is true for the above situation?

(a) Governor A is more sensitive than B

(b) Governor B is more sensitive than A

(c) Governor A is equally sensitive as B

(d) Lift does not affect sensitivity

The question was posed to me in a dream while sleeping

Asked question is from Sensitiveness and Stability of Governors in division Governors of Machine Dynamics

Answer 1

Correct option is (a) Governor A is more sensitive than B

To explain: For an independent governor, the greater the lift of the sleeve for a given fractional change in speed, the greater will be the sensitiveness of the governor. As a consequence, we can establish a relation in which the sensitiveness of the governor is related to sleeve lift and fractional change in speed.