National Home Inspector Exam 2024 Questions and Answers | 100% Pass

National Home Inspector Exam 2024 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 pipes, and reinforcing steel encased footings. grounding electrode conductor (GEC) - Answer ️️ -a conductor that runs between the grounding electrode and an accessible point downstream from where the grounded service entrance conductor connects to the service drop or lateral; the GEC connection is usually at the service equipment. Ground fault - Answer ️️ -an event that occurs when metal that should not conduct electricity (such as a metal water pipe) becomes energized; if the metal is properly bonded, current flow should increase in the circuit and trip the circuit breaker or fuse. Ground Fault Circuit Interrupter (GFCI) - Answer ️️ -a circuit breaker or receptacle that detects a ground fault by monitoring the imbalance in current flow between the energized and neutral conductors and stops current flow kopens the circuit) when a ground fault is detected. Joules Law - Answer ️️ -a formula for calculating heat in an electrical circuit expressed as Heat = Current▪︎ 2 X Resistance X Time. Knockouts - Answer ️️ -stamped openings in an enclosure where conduit or cable clamps are installed to secure conductors or cables. See Tabs (twistouts). Load Center - Answer ️️ -See Panel (panelboard, load center) Lug - Answer ️️ -a connection point where conductors are inserted and secured; examples include the connection points on panelboards for service entrance and feeder conductors, on terminal bars for neutral and EGCs, and on circuit breakers for branch circuit conductors. Ohm's Law and Watt's Law - Answer ️️ -expressions of the relationship between current, voltage, power, and resistance; expressed as Power = Volts X Amps and Resistance = Volts/Amps Outlet - Answer ️️ -a place where current is taken for use; examples include receptacles, light fixtures, and connections at electrical appliances such as water heaters. Overcurrent Protection Device - Answer ️️ -a fuse or circuit breaker; overcurrent protection devices interrupt the flow of electricity when a set current flow is exceeded (an overload), or when a short circuit fault is detected; these devices prevent conductors and devices from overheating and causing fires. panel (panelboard, load center - Answer ️️ -the equipment on which circuit breakers or fuses are mounted; panels include associated terminal bars; a panelboard is contained in an enclosure; first and usually the largest panel is often referred to as the main panel or service panel; however, there are no generally accepted terms to identify panels. power - Answer ️️ -a measure of the work performed by electricity; unit of measure is the Watt. Raceway - Answer ️️ -enclosed metallic or nonmetallic components designed and listed for holding conductors or cables between points in the electricity distribution system of the house; examples include various types of conduit and tubing. Receptacle - Answer ️️ -an outlet designed to accept a plug that supplies electricity to an appliance. Resistance - Answer ️️ -the property of a material to allow or restrict the flow of electricity; materials with low resistance are conductor