NATIONAL HOME INSPECTOR EXAM QUESTIONS AND ANSWERS 2025/2026

NATIONAL HOME INSPECTOR EXAM QUESTIONS AND ANSWERS 2025/2026 Ampacity - Answer -The maximum current, in amperes, that a conductor can carry continuously under the conditions of use without exceeding its temperature rating. American Wire Gauge (AWG) - Answer -an standard method of denoting the diameter of electrically conducting wire Bonding - Answer -The process of connecting, both physically and electrically, metal components of the electrical system that are not intended to carry electrical current to provide a low resistance return path to the circuit breaker or fuse to clear ground faults; bonding is an elecsafety system. system. Branch Circuit - Answer -Conductors that begin at a circuit breaker or fuse and serve one or more oulets. Branch Circuit, multiwire - Answer -A branch circuit in which two energized conductors share one neutral, examples can include clothes dryers, ranges and other cooking appliances, and split-wire receptacle circuits, 240 volt water heaters and condensers for air conditioners and heat pumps are not usually branch circuits.Bus (buss, busbar) - Answer -the heavy, rigid metal part of a panelboard on which circuit breakers or fuses are mounted; sometimes used to describe metal terminals to which the neutral and equipment grounding conductors (EGCs) are connected. Cable - Answer -two or more conductors encased in sheathing; examples include non-metallic sheathed cable (Brand Romex) and armored cable (Brand BX) circuit breaker - Answer -overcurrent protection device (OPD) Conductor - Answer -a material, such as copper or aluminum, that permits electricity to flow with low resistance, wires are conductors. Current - Answer -the amount of electricity in a circuit. Unit of measure is the ampere (amp); expressed as I in Ohm's Law and Watt's Law equation. Dead front cover - Answer -a panel that is removed to gain access to the energized components inside an enclosure; the dead front cover is usually behind a door that must be swung or lifted to gain access to the dead front cover. EGC - Answer -Equipment grounding conductor Enclosure (electrical) - Answer -a case or cabinet intended to prevent accidental contact with energized parts, a panelboard is housed inside an enclosure. Feeder conductors - Answer -conductors from the service equipment or from a panelboard that supply electricity to another panelboard such as a subpanel.Fuse - Answer -Overcurrent protection device (OPD) Grounded - Answer -a conductor that is intentionally connected to earth; this describes what is often called the neutral conductor. grounding - Answer -providing an intentional connection to earth, grounding provides an alternate path for current to return to its source; in an electrical power system, the source is the utilities transformer and ultimately power plant. See grounding electrode and grounding electrode conductor (GEC). Grounding Conductor, Equipment (EGC) - Answer -a bare or insulated conductor that provides a ground fault current path (a bonding connection) for equipment with metal cases and parts; these have been installed in most house branch circuit wiring since around 1960. grounding electrode - Answer -metal that is in direct contact with the earth and serves as the electrical system grounding connection; examples include copper coated steel rods, galvanized steel pipes, water service and well