Question

From the turning moment diagram shown below, the minimum speed will occur at point _____

(a) p

(b) b

(c) q

(d) c

This question was addressed to me in an interview for internship.

This is a very interesting question from Coefficient of Fluctuation of Energy in portion Turning Moment Diagrams and Flywheel of Machine Dynamics

Answer 1

The correct choice is (a) p

The explanation is: The minimum engine speed occurs at point p because the flywheel gives out some of its energy when the crank moves from point a to p. This results in loss of speed.