Technician A says a variable-diameter pulley (VDP) system operates using two variable diameter pulleys with either steel or a rubber belt between them. Technician B says the rubber belt operates much quieter than a steel belt, so most vehicle manufacturers use them. Who is correct?
A) Technician A
B) Technician B
C) Both A and B
D) Neither A nor B

Question

Quizplus · Accepted Answer

Technician A is correct because a variable-diameter pulley system typically uses two variable diameter pulleys with a belt, which can be either steel or rubber, to transfer power. Technician B is incorrect because most modern VDP systems in vehicles use a steel belt for durability and efficiency, despite the noise factor.

Technician a Says a Variable-Diameter Pulley (VDP) System Operates Using