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

Question

Quizplus · Accepted Answer

The drive pulley to alternator pulley ratio is what allows the alternator to be driven at a higher speed than the engine rpm. By having a smaller pulley on the alternator than on the drive pulley attached to the engine, the alternator can spin faster than the engine's rpm, generating the necessary electrical power efficiently.

Which of the Following Best Explains How an Alternator Is