Which of the following best explains how an alternator is driven by truck engine at a higher speed than engine rpm?

A) drive pulley to alternator pulley ratio
B) drive gear to alternator gear ratio
C) use of multiple drive pulley belts
D) internal gear multiplication in alternator

Drive Pulley

A pulley connected to a power source that transmits rotational motion and power to a belt, chain, or other mechanism.

Alternator Pulley Ratio

The alternator pulley ratio is the ratio between the rotation speed of the alternator pulley and the engine crankshaft. It is crucial for ensuring the alternator operates efficiently at various engine speeds.

Engine Rpm

Revolutions per minute of an engine, a measure of the engine's speed and a critical factor in power output and fuel consumption.