Electrical Inspection, Testing and Certification Practice Exam 2025 – Comprehensive All-in-One Guide for Exam Success!

Question: 1 / 400

Which test is performed to ensure proper function of ground-fault circuit interrupters (GFCIs)?

The voltage test

The insulation resistance test

The trip test

The trip test is crucial for ensuring the proper function of ground-fault circuit interrupters (GFCIs). This test checks whether the GFCI trips correctly when a fault condition occurs, such as when there is an imbalance between the current flowing in the hot and neutral wires.

During the trip test, a button on the GFCI is typically pressed, which simulates a ground fault situation, leading the circuit to interrupt the current flow. By doing this, the test verifies that the GFCI is functioning as intended, enhancing safety by preventing potential electric shock hazards. If the GFCI does not trip during this test, it indicates a malfunction that could leave users at risk.

The other testing methods, while important for overall electrical safety and performance, do not specifically assess the GFCI's response to ground faults in the way that the trip test does.

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The load test

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