AHIT Electrical, Unit 5 Exam Questions and Answers

AHIT Electrical, Unit 5 Exam Questions and Answers adapter -Correct Answer-A device with a 3-slot receptacle for an appliance plug and a 2-prong plug for inserting into a 2-slot outlet. AL -Correct Answer-A rating indicating that breakers are approved for use with aluminum branch circuit wiring. alternating current -Correct Answer-an electrical current, used in homes, in which electrons move back and forth at a frequency of 60 cycles per second. ampacity -Correct Answer-The number of amps that can safely pass through a given conductor. amperage (see current) -Correct Answer-The flow of electricity that results when the electromotive force is applied across a given resistance. Current, also called amperage, is measured in amps. amperage rating -Correct Answer-In home inspection, the size of amp service supplied to a home. For example, a 100-amp or 200-amp service. amps -Correct Answer-The unit of measure for current. anti-oxidant compound -Correct Answer-A grayish paste applied to aluminum wiring connections to prevent aluminum oxide from forming. bonding -Correct Answer-Electrically connecting two or more conductive items together and to the grounding system. branch circuit wiring -Correct Answer-That portion of the electrical system that runs from the electrical panel to outlets, switches, and fixtures in the home. breaker (circuit breaker) -Correct Answer-An overload protection device that opens a circuit and stops the flow of electricity when the circuit overloads. British Thermal Unit (BTU) -Correct Answer-A unit of measure of heat output. Abbreviation BTU busbar -Correct Answer-A conductor bar that provides connections and power for fuses and breakers and thus to circuits. BX cable -Correct Answer-A metal armored cable used in branch circuit wiring which carried only a hot and neutral wire until the 1950's, but since also carries a ground wire. circuit -Correct Answer-A complete path of an electric current. circuit breaker -Correct Answer-An overload protection device that opens a circuit and stops the flow of electricity when the circuit overloads. CO/ALR -Correct Answer-A rating indicating that breakers, connectors, switches, and outlets are approved for use with aluminum branch circuit wiring. conductor -Correct Answer-A material that offers a low resistance to an electric current flowing through it. Also, the wire used in the home's electrical system as in the grounding conductor, service conductor, and so on. conduit -Correct Answer-A metal cable, rigid or flexible, used in branch circuit wiring, which can carry two hot wires, a neutral, and a gro