Humber/Ontario Real Estate Course 2 Exam Practice

What device is intended to interrupt electrical power if a small leakage is detected in the circuit?

1. Ground Fault Circuit Interrupter

2. Electrical Main Disconnect Switch

3. Grounded Outlet

4. Voltage Stabilizer

5. Circuit Equalizer

6. Electrical Leakage Circuit Breaker

The correct answer is: Ground Fault Circuit Interrupter

A Ground Fault Circuit Interrupter (GFCI) is designed to interrupt electrical power when it detects a small leakage in the circuit, which is crucial for ensuring safety in residential and commercial electrical systems. This device helps prevent electric shock by quickly shutting off power if it detects a ground fault, such as current leaking to the ground. It is commonly installed in areas where water is present, like kitchens, bathrooms, and outdoor outlets. The other options are not specifically designed to interrupt electrical power in the event of a small leakage as effectively as a GFCI. For example, the Electrical Main Disconnect Switch is used to shut off all power to a building, the Grounded Outlet provides a safe path for electrical currents to return to the ground, the Voltage Stabilizer ensures a consistent voltage level, and the Circuit Equalizer balances electrical loads in a circuit. Additionally, an Electrical Leakage Circuit Breaker is not a standard term or device in electrical systems.