Contacts that are together when the relay is de-energized are normally closed.

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Prepare for the NCCER Electrical Level 2 Control Systems and Fundamental Concepts exam. Utilize flashcards and multiple choice questions with hints and explanations. Ensure success on your exam!

Multiple Choice

Contacts that are together when the relay is de-energized are normally closed.

Explanation:
Relays have two kinds of contacts: normally closed (NC) and normally open (NO). When the coil is not energized, NC contacts are closed, meaning the circuit is complete or “together.” The phrase “contacts that are together when the relay is de-energized” describes this resting state, which is exactly what NC means. Energizing the coil opens those contacts, and NO contacts would be closed instead. So the statement is true.

Relays have two kinds of contacts: normally closed (NC) and normally open (NO). When the coil is not energized, NC contacts are closed, meaning the circuit is complete or “together.” The phrase “contacts that are together when the relay is de-energized” describes this resting state, which is exactly what NC means. Energizing the coil opens those contacts, and NO contacts would be closed instead. So the statement is true.

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