What term describes contacts that are together when the relay is not energized?

• A. Normally open
• B. Normally closed
• C. Intermittent
• D. Fail safe

Answer: (B)

The term that describes contacts that are together when the relay is not energized is "normally closed." In this configuration, the contacts remain closed and allow current to flow through the circuit when the relay coil is not energized. When the relay is activated, the contacts open, interrupting the current flow. This is a fundamental characteristic of various types of relays and is crucial in applications where maintaining a circuit until activated is necessary.

In contrast, "normally open" contacts do not conduct electricity when the relay is not energized; they close to allow current flow only when the relay is activated. The terms "intermittent" and "fail safe" refer to different concepts related to the operation of electrical circuits and safety mechanisms but do not accurately describe the condition of contacts in relation to whether they are closed or open during the unenergized state of a relay. Understanding these terms is essential for those working with electrical systems, as it impacts how circuits are designed and how they function within various applications.