Question

A V-belt designated by A-914-50 denotes

(a) a standard belt

(b) an oversize belt

(c) an undersize belt

(d) none of the mentioned

The question was posed to me at a job interview.

My doubt stems from V-Belts in portion Belt, Rope and Chain Drives of Machine Kinematics

Answer 1

The correct answer is (a) a standard belt

To explain I would say: a V-belt marked A – 914 – 50 denotes a standard belt of inside length 914 mm and a pitch length 950 mm. A belt marked A – 914 – 52 denotes an oversize belt by an amount of (52 – 50) = 2 units of grade number.