Approved wiring methods, conductor types, and installation rules under the NEC tested on licensing exams.
35 cards · basic cards · AI-written, checked twice. Edit anything.
- What does NM cable stand for?
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Nonmetallic sheathed cable- Minimum burial depth for outdoor NM cable?
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12 inches- Where is UF cable approved for use?
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Underground and direct burial in earth- What does THHN insulation stand for?
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Thermoplastic High Heat-resistant Nylon-jacketed- EMT means what in electrical work?
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Electrical Metallic Tubing- Maximum conduit fill percentage for three or more conductors?
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40 percent- Total degrees of bends allowed between conduit pull points?
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360 degrees- Standard ambient temperature used in ampacity tables?
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86 degrees F (30 degrees C)- What color must neutral conductors be?
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White or gray- What colors indicate hot conductors in single-phase 120/240V?
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Black and red- Color for grounding and equipment ground conductors?
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Bare copper or green- Maximum support spacing for horizontal cable runs?
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4.5 feet- How often must rigid metal conduit be supported?
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Every 10 feet- Maximum safe ambient temperature for PVC conduit?
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50 degrees C (122 degrees F)- Minimum burial depth for UF cable in normal soil?
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24 inches
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