NFPA 70 Definitions Exam Questions and Answers All Correct

NFPA 70 Definitions Exam Questions and Answers All Correct Accessible (as applied to equipment) - Answer-Admitting close approach; not guarded by locked doors, elevation, or other effective means. Accessible (as applied to wiring methods) - Answer-Capable of being removed or exposed without damaging the building structure or finish or not permanently closed in by the structure or finish of the building. Accessible, Readily (Readily Accessible) - Answer-Capable of being reached quickly for operation, renewal, or inspections without requiring those to whom ready access is requisite to actions such as to use tools,(other than keys) to climb over or remove obstacles, or to resort to portable ladders, and so forth. Ampacity - Answer-The maximum current, in amperes, that a conductor can carry continuously under the conditions of use without exceeding its temperature rating. appliance - Answer-Utilization equipment, generally other than industrial, that is normally built in standardized sizes or types and is installed or connected as a unit to perform one or more functions such as clothes washing, air conditioning, food mixing, deep frying, and so forth. Approved - Answer-Acceptable to the authority having jurisdiction. Arc-Fault Circuit Interrupter (AFCI) - Answer-A device intended to provide protection from the effects of arc faults by recognizing characteristics unique to arcing and by functioning to de-energize the circuit when an arc fault is detected. Authority Having Jurisdiction (AHJ) - Answer-An organization, office, or individual responsible for enforcing the requirements of a code or standard, or for approving equipment, materials, an installation, or a procedure. Bathroom - Answer-An area including a basin with one or more of the following: a toilet, a urinal, a tub, a shower, a bidet, or similar plumbing fixtures. Bonded (Bonding) - Answer-Connected to establish electrical continuity and conductivity. Branch Circuit - Answer-The circuit conductors between the final overcurrent device protecting the circuit and the outlet(s). Branch Circuit, Appliance - Answer-A branch circuit that supplies energy to one or more outlets to which appliances are to be connected and that has no permanently connected luminaires that are not a part of an appliance. Branch Circuit, General-Purpose - Answer-A branch circuit that supplies two or more receptacles or outlets for lighting and appliances. Branch Circuit, Individual - Answer-A branch circuit that supplies only one utilization equipment. branch circuit, multiwire - Answer-A branch circuit that consists of two or more ungrounded conductors that have a voltage between them, and a grounded conductor that has equal voltage between it and each ungrounded conductor of the circuit and that is connect to the neutral or grounded conductor of the system. Conductor, Bare - Answer-A conductor having no covering or electrical insulation whatsoever. Conductor, Covered - Answer-A conductor encased within material of composition or thickness that is not recognized by this Code as electrical insulation. conductor, insulated - Answer-A conductor encased within material of composition and thickness that is recognized by this Code as electrical insulation. Continuous load - Answer-A load where the maximum current is expected to continue for 3 hours or more. controller - Answer-A device or group of devices that serves to govern, in some predetermined manner, the electric power delivered to the apparatus to which it is connected. Dead Front - Answer-Without live parts exposed to a person on the operating side of the equipment. Device - Answer-A unit of an electrical system, other than a conductor, that carries or controls electric energy as its principal function. Disconnecting Means - Answer-A device, or group of devices, or other means by which the conductors of a circuit can be disconnected from their source of supply. Dusttight - Answer-Enclosures constructed so that dust will not enter under specified test conditions. Duty, Continuous - Answer-Operation at a substantially constant load for an indefinitely long time. Duty, Intermittent - Answer-Operation for alternate intervals of (1) load and no load; or (2) load and rest; or (3) load, no load, and rest. Duty, periodic - Answer-Intermittent operation in which the load conditions are regularly recurrent. Duty, Short-Time - Answer-Operation at a substantially constant load for a short and definite, specified time. Duty, Varying - Answer-Operation at loads, and for intervals of time, both of which may be subject to wide variation. Dwelling Unit - Answer-A single unit, providing complete and independent living facilities for one or more persons, including permanent provisions for living, sleeping, cooking, and sanitation. feeder - Answer-All circuit conductors between the service equipment, the source of a separately derived system, or other power supply source and the final branch-circuit overcurrent device. ground fault - Answer-An unintentional, electrically conductive connection between an ungrounded conductor of an electrical circuit and the normally non-current-carrying conductors, metallic enclosures, metallic raceways, metallic equipment, or earth.