Humber/Ontario Real Estate Course 3 Exam Practice

Which tool is designed to interrupt power in a circuit during a minor electrical leak?

1. electrical leakage circuit breaker

2. ground fault circuit interrupter

3. grounded outlet

4. main circuit breaker

5. power surge protector

6. residual current device

The correct answer is: ground fault circuit interrupter

The correct answer is a ground fault circuit interrupter (GFCI). A GFCI is a tool specifically designed to interrupt power in a circuit in the event of a minor electrical leak, also known as a ground fault. This is a crucial safety feature that helps protect against the risk of electric shock and electrical fires caused by faulty wiring or appliances. The other options are not the best choices because: - An electrical leakage circuit breaker is not a standard term used in the context of electrical safety devices. - A grounded outlet refers to an outlet that has a proper grounding connection, but it does not specifically address interrupting power in case of a ground fault. - A main circuit breaker is responsible for shutting off power to the entire circuit in case of an overload or short circuit, but it may not respond as quickly to a minor electrical leak like a GFCI would. - A power surge protector is designed to protect electronic devices from voltage spikes, not to interrupt power during a minor electrical leak. - While a residual current device (RCD) is similar to a GFCI and serves a similar purpose, in the context of Ontario real estate practices, a GFCI is the more commonly used term.