Technician A says typically, a variable-diameter pulley (VDP) gear ratio is 3:1 through the pulleys from a dead stop. Technician B says as the vehicle gains speed, the input pulley diameter increases, while the output pulley diameter decreases. Who is correct?
A) Technician A
B) Technician B
C) Both A and B
D) Neither A nor B

Question

Quizplus · Accepted Answer

Both technicians are correct. Technician A is correct in stating that a typical gear ratio from a dead stop is 3:1. Technician B is correct in explaining that as the vehicle gains speed, the input pulley diameter increases and the output pulley diameter decreases, which changes the gear ratio.

Technician a Says Typically, a Variable-Diameter Pulley (VDP) Gear Ratio