Technician A says a variable-diameter pulley (VDP) system operates using two variable diameter pulleys with either a steel or a rubber belt between them. Technician B says the rubber belt has a limited service life in an automobile, so most 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 (VDP) system, such as those used in continuously variable transmissions (CVTs), typically operates using two variable diameter pulleys with a belt between them. The belt can be made of steel or rubber, but steel belts are more common in automotive applications due to their durability.

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