Technician A says an overdrive gear ratio is less than 1 to 1. Technician B says overdrive ratios provide more torque than underdrive ratios. Who is correct?
A)A only
B)B only
C)both A and B
D)neither A nor B

Question

Quizplus · Accepted Answer

Technician A is correct because an overdrive gear ratio, which is less than 1:1, allows the engine to run at a lower RPM for a given road speed, improving fuel efficiency and reducing noise. Technician B is incorrect because overdrive ratios actually provide less torque to the wheels than underdrive ratios, as their primary purpose is to reduce engine RPM and save fuel at higher speeds, not to increase torque.

Technician a Says an Overdrive Gear Ratio Is Less Than