Question

The main moto of the simplification is to ______________

(a) To reduce the calculation

(b) To add the forces with the couples and take out the total

(c) To subtract the forces with the couples and take out the total

(d) To multiply the forces with the couples and take out the total

This question was addressed to me in an interview.

The question is from Simplification of a Force and Couple System in portion Force System Resultants of Engineering Mechanics

Answer 1

The correct option is (a) To reduce the calculation

The explanation is: The main moto of the simplification is to reduce the calculation. The forces are simplified and the couples too are simplified. This gives us the total force and the total moment acting on the body. This gives us a single value of the respective thing and hence reduces the labour.