Question

The power transmitted by a belt is maximum when the maximum tension in the belt (T) is equal to

(a) TC

(b) 2TC

(c) 3TC

(d) 4TC

The question was posed to me in quiz.

This key question is from Belt, Rope and Chain Drives topic in section Belt, Rope and Chain Drives of Machine Kinematics

Answer 1

Correct option is (c) 3TC

Easy explanation: When the power transmitted is maximum, 1/3rd of the maximum tension is absorbed as centrifugal tension.

                                   T = 3TC

where TC = Centrifugal tension.