InterNACHI Electrical Systems and Safety 5

Question 1

What is the required arc-fault circuit interrupter (AFCI) protection for bedroom circuits in homes built to current NEC standards?

Accepted Answer

AFCI protection is required for all 120V, 15- and 20-amp branch circuits in bedrooms

Answer

The NEC requires AFCI protection for all 120V, 15- and 20-amp branch circuits in bedrooms to reduce fire risk from arc faults in cords and wiring.

Question 2

When inspecting a garage, an inspector finds an outlet within 6 feet of a vehicle door that is not GFCI-protected. What is the correct assessment?

Accepted Answer

A deficiency, as all garage outlets require GFCI protection regardless of location

Answer

All receptacles in garages (except dedicated appliance circuits) require GFCI protection per NEC requirements, regardless of their location within the garage.

Question 3

An inspector discovers that the grounding electrode conductor at the main panel is a #6 AWG copper wire connected to a metal water pipe. What should be noted if the water pipe is plastic near the street?

Accepted Answer

The grounding system may be compromised if the metallic water pipe section is short and discontinuous

Answer

If a plastic section interrupts the metal water pipe before reaching earth, the pipe segment cannot serve as a grounding electrode and the system is compromised.

Question 4

Which of the following best describes the function of a whole-house surge protector installed at the main electrical panel?

Accepted Answer

It diverts excess voltage from transient surges to protect connected devices

Answer

A whole-house surge protector diverts excess transient voltage to ground, reducing the risk of surge damage to sensitive electronics throughout the home.

Question 5

What is the concern when a home inspector finds multiple extension cords being used as permanent wiring in a bedroom?

Accepted Answer

Extension cords used as permanent wiring are a fire and shock hazard and indicate insufficient outlets

Answer

Extension cords are not designed for permanent use, can overheat, and their use indicates a need for additional permanently wired outlets.

(InterNACHI) International Association of Certified Home Inspectors Practice Test

(InterNACHI) International Association of Certified Home Inspectors Practice Test

InterNACHI Electrical Systems and Safety 5