Question

Which of the following is a function of a belt transmission dynamometer?

(a) Measure the difference in tension of the belts

(b) Measuring speed of an engine

(c) Measuring power of an engine

(d) Measuring friction

I have been asked this question in an interview for job.

My doubt is from Belt Transmission Dynamometer-Froude or Throneycraft Transmission Dynamometer in portion Brakes and Dynamometers of Machine Dynamics

Answer 1

Correct option is (a) Measure the difference in tension of the belts

Explanation: The tangential force on the pulley which is driven is equal to the difference between the tensions in the tight and slack sides of the belt. A belt dynamometer is inserted to measure directly the difference between the tensions of the belt.