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Electrical NEC Exam Practice Guide with Correct
Solutions
the __________ has the responsibility for deciding on the approval of equipment and materials manufacturer authority having jurisdiction testing agency the owner of the premises - Answer authority having jurisdiction in the NEC, the word(s) "__________" indicate a mandatory requirement shall shall not shall be permitted shall or shall not - Answer shall or shall not "within sight from" means visible and not more than _________ ft distant form the equipment 10 20 25 50 - Answer 50 the NEC defomes a(n) "_________" as one who has skills and knowledge related to the construction and operation of the electrical equipment and installations and has received safety training to recognize and avoid the hazards involved inspector
master electrician journeyman electrician qualified person - Answer qualified person tightening torque values for terminal connections shall be as indicated on equipment or in installation instructions provide by the manufacturer. an approved means shall be used to _________ the indicated torque value maximize adjust optimize achieve - Answer achieve where equipment operating at 1000 volts, nominal, or less to ground and likely to require examination, adjustment, servicing, or maintenance while energized is required by installation instructions or function to be located in a space with limited access, and where equipment is installed above a lay-in ceiling, there shall be an opening not smaller than _________. 6 in x 6 in 12 in x 12 in 22 in x 22 in 22 in x 30 in - Answer 22 in x 22 in article 200 provides the requirements for _________. identification of terminals grounded conductors in premises wiring systems identification of grounded conductors all of these - Answer all of these
reconditioned circuit breakers shall be listed as "reconditioned" and the original listing mark shall be _________. removed struck out replaced any of these - Answer removed _________ on equipment to be grounded shall be removed from contact surfaces to ensure good electrical continuity paint lacquer enamel any of these - Answer any of these alternating-current circuits of less than 50v shall be grounded if supplied by a transformer whose supply system exceeds 150 volts-to-ground true false - Answer false listed liquidtight flexible metal conduit (LFMC) is acceptable as an equipment grounding conductor when it terminates in listed fittings and is protected by an overcurrent device rated 60a or less for trade sizes 3/8 through 1/2. true false - Answer false where portions of cable raceways or sleeves are required to be sealed due to different temperatures, sealants shall be identified for use with ________, a bare conductor, a shield, or other components.
low temperature conditions high temperature condtions a stranded conductor cable and conductor insulation - Answer cable and conductor insulation where [portions of a cable raceway or sleeve are subjected to different temperatures and condensation is known to be a problem, the ________ shall be sealed to prevent the circulation of warm air to a colder section of the raceway or sleeve opening cable space raceway or sleeve - Answer raceway or sleeve equipment and devices shall only be permitted within ducts or plenum chambers specifically fabricated to transport environmental air if necessary for their direct action upon, or sensing of, the ________ contained air air quality air temperature humidity - Answer contained air section 300.22(c) applies to spaces not specifically fabricated for environmental air- handling purposes but used for air-handling purposes such as the space over a hung ceiling true false - Answer true
