Question

For a more sensitive governor, the change in angle between OA and the x axis with change in radius of rotation should be? (the x – axis represents radius of rotation and the y axis represents the controlling force.)

(a) Small

(b) Large

(c) Remain same

(d) Is independent of this angle

This question was posed to me during an interview.

Question is from Controlling Force Diagram for a Porter Governor topic in chapter Governors of Machine Dynamics

Answer 1

Correct option is (a) Small

The explanation: For the governor to be more sensitive, the change in the value of angle between OA and the x-axis over the change of radius of rotation should be as small as possible.