Technician A says that four-terminal relays are commonly used in truck wiring today. Technician B says that a four-terminal relay eliminates the normally-closed (NC) option used on a five-terminal relay. Who is correct?

Question

Quizplus · Accepted Answer

Four-terminal relays are indeed commonly used in truck wiring for their simplicity and efficiency in specific applications. A four-terminal relay typically does not include a normally-closed (NC) contact, which is present in a five-terminal relay, thus eliminating the NC option. This makes Technician B's statement correct as well.

Technician a Says That Four-Terminal Relays Are Commonly Used in Truck