NCCER ELECTRICAL 1 MODULE 9 Exam 2025 Questions & Answers with 100% Correct Answers | Verified

Wire Sizes are expressed in gauge numbers. The standard system of wire sizes in the US is the - American Wire Gauge (AWG) The purpose of stranding is to - Increase the flexibility of the wire. Two-conductor cable - One white or gray wire(neutral), one black(hot), and a grounding wire(usually bare). The grounding conductor may be - bare, green, or green with yellow stripe The various types of conductors are concerned in - NEC article 310 The ampacities of conductors are given in - NEC Tables 310.15(B)(16) through (B)(21) The decision of which fixture wire to use depends primarily upon - The operating temperature that is expected within the fixture The sheath covering Type NMC cable has the additional characteristics of - Being fungus and corrosion-resistant Type NM cable is suitable for dry locations only - Type NMC is permitted for dry, moist, damp, or corrosive locations Type NMS cable is - a form of nonmetallic sheathed cable that contains a factory assembly of power, communications, and signaling conductors enclosed within a moisture-resistant, flame retardant sheath. Some typical uses for three types of MC cable are for - Services, feeders, and branch circuits; for power, lighting, control, and signal circuits; indoors or outdoors; exposed or concealed; direct burial in any raceway specified in NEC article 330.