Certain contacts of a mechanical timing relay are designed to operate at a preset time interval:
A)after the coil is energized.
B)after the coil is de-energized.
C)after power is applied to the circuit.
D)either a or b.

Question

Quizplus · Accepted Answer

The timing contacts can be designed to operate either after the coil is energized or after the coil is de-energized, depending on the specific timing relay. Some timing relays also have the option to operate after power is applied to the circuit. Therefore, either choice A or B could be correct.

Certain Contacts of a Mechanical Timing Relay Are Designed to Operate