Any gear ratio of less than 1:1 is considered an overdrive ratio. Overdrive ratios are typically used to:
A) increase engine speed.
B) increase fuel economy.
C) decrease engine noise.
D) decrease engine wear.

Question

Quizplus · Accepted Answer

Overdrive ratios reduce engine RPM at higher speeds, which can lead to increased fuel economy by allowing the engine to operate more efficiently.

Any Gear Ratio of Less Than 1:1 Is Considered an Overdrive