If the contacts fail to open when a relay is de-energized,What is the trouble?
A)Dirt is causing the relay armature to stick.
B)There is too little current in the relay coil.
C)The return spring tension is too large.
D)There is no trouble. The relay is operating normally.

Question

Quizplus · Accepted Answer

If the contacts fail to open when a relay is de-energized, it means that there is a mechanical problem with the relay and dirt or other contaminants may be causing the armature to stick, preventing the contacts from opening.

If the Contacts Fail to Open When a Relay Is