Texas Home Inspector Test: Electrical questions and answers 2023

Aluminum wiring is not recommended on most homes under new construction. That is because? - ANSWER-The wire oxidizes which acts as an insulator that can increase the heat and may melt the insulation. Aluminum wire must have something that acts as an insulator rather than conductor of electricity. - ANSWER-An antioxidant. It also decreases the likelihood of arcing. An inspector inspects a house built in 1955. He finds a wire that has a silver coating on it. What type of wire is it? - ANSWER-Zinc coated wire/ nickel coated wire. Aluminum wire was not used in homes until around 1960. What is the minimum size wire that can be used as a grounding electrode? - ANSWER-#6 Copper AWG What is the maximum height a breaker can be according to the NEC? - ANSWER-6 ft 7 inches How many amps are required to trip a GFCI? - ANSWER-5 to 8 milliamps How do you test a GFCI receptacle? - ANSWER-A separate GFCI testing device Define the purpose of a circuit breaker. - ANSWER-It is designed to interrupt the flow of electricity. What is the longest length of plug and cord you would expect to find on an appliance with proper receptacle locations/spacing? - ANSWER-6 ft In a bathroom, how close to the sink must a receptacle on the wall be? - ANSWER-Within 3 feet of the sink. If you saw an uncovered incandescent light in a closet what would you write on your report? - ANSWER-'in need of repair'. Uncovered incandescent light fixtures in a closet are not allowed. Covered incandescednt light fixtures must have 12'' of clearance from any shelving capable of being used for storage. How deep must a ground rod be driven into the ground? - ANSWER-8 ft A wet bar counter receptacle must be GFCI protected within ___ feet of the sink? - ANSWER-6 ft Ground rods are also referred to as ___. - ANSWER-Electrodes