NCCER Electrical Certification Practice Test 2025 - Free Electrical Certification Practice Questions and Study Guide

Question: 1 / 400

A "live-dead live" test is used to verify what?

If the circuit is energized

If a circuit is properly grounded

If a circuit is de-energized

The "live-dead live" test is a method used by electricians to confirm whether a circuit is de-energized, or in other words, not carrying any electric current. This testing procedure involves checking for a live circuit, turning off the power to the circuit, and then verifying that the circuit is indeed dead or de-energized before any work is undertaken. This test ensures the safety of the electrician, confirming that no electrical energy is present that could pose a risk during maintenance or repair work.

By establishing that the circuit is in a state where it cannot deliver electrical energy, the tester can safely proceed with their tasks. A crucial aspect of this method is the use of a multi-meter or a similar testing device to validate the absence of voltage after the power has been turned off. This practice is essential for compliance with safety standards and protocols in electrical work.

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If a circuit is properly fused

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