Technician A says that when the load on a truck electrical system is minimal,the alternator will freewheel,reducing the parasitic load on the engine.Technician B says that a typical truck alternator may be cycled by the voltage regulator hundreds of times per second.Who is correct?
A) Technician A only
B) Technician B only
C) Both A and B
D) Neither A nor B

Question

Quizplus · Accepted Answer

Technician A is correct because modern alternators can indeed reduce their load on the engine when the electrical demand is low, improving fuel efficiency. Technician B is also correct because the voltage regulator can rapidly adjust the alternator's output to maintain a consistent voltage level, which may involve cycling the alternator's activity many times per second to respond to the changing electrical demands of the vehicle.

Technician a Says That When the Load on a Truck