NCCER Electrical Set Test Questions And Verified Correct Answers
NCCER Electrical Set Test Questions And Verified Correct Answers A 3-phase, 4-wire, 480v service requires ______ current transformer(s) - ANSWER : 3 Services conductors and equipment are covered in - ANSWER : NEC Article 230 The NEC required that all receptacles installed on 25 amp and 20 amp branch circuits be ______ receptacles - ANSWER : Grounding A transformer with the primary of 400 turns and a secondary of 300 turns has a _____ - ANSWER : Step-down turns ratio of 4:3 The circular mil is based on the - ANSWER : Cross-sectional area of the wire Of the termination classes listed below, ____ is the only one that provides a seal against external elements. - ANSWER : Class 1
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nccer electrical set test questions and verified