An electric strike holds the door closed when de-energized and releases when energized. This configuration is known as:

An electric strike holds the door closed

Multiple choice — select the best answer

AFail-secure
BFail-safe
CFail-open
DFail-locked

✓ Correct answer: B. Fail-safe Fail-safe (also called fail-open) means the lock releases when power is lost, allowing free egress—important for life-safety reasons. Fail-secure means the lock remains locked when power is removed.

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Topic: Access Control

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An electric strike holds the door closed when de-energized and releases when energized. This configuration is known as:

Related questions — Access Control

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