NCCER ELECTRICAL 1 MODULE 9-
QUESTIONS & ANSWERS
Wire Sizes are expressed in gauge numbers. The standard system of wire sizes in the US is the
Correct Ans-American Wire Gauge (AWG)
The purpose of stranding is to Correct Ans-Increase the flexibility of the wire.
Two-conductor cable Correct Ans-One white or gray wire(neutral), one black(hot), and a
grounding wire(usually bare).
The grounding conductor may be Correct Ans-bare, green, or green with yellow stripe
The various types of conductors are concerned in Correct Ans-NEC article 310
The ampacities of conductors are given in Correct Ans-NEC Tables 310.15(B)(16) through
(B)(21)
The decision of which fixture wire to use depends primarily upon Correct Ans-The operating
temperature that is expected within the fixture
The sheath covering Type NMC cable has the additional characteristics of Correct Ans-Being
fungus and corrosion-resistant
QUESTIONS & ANSWERS
Wire Sizes are expressed in gauge numbers. The standard system of wire sizes in the US is the
Correct Ans-American Wire Gauge (AWG)
The purpose of stranding is to Correct Ans-Increase the flexibility of the wire.
Two-conductor cable Correct Ans-One white or gray wire(neutral), one black(hot), and a
grounding wire(usually bare).
The grounding conductor may be Correct Ans-bare, green, or green with yellow stripe
The various types of conductors are concerned in Correct Ans-NEC article 310
The ampacities of conductors are given in Correct Ans-NEC Tables 310.15(B)(16) through
(B)(21)
The decision of which fixture wire to use depends primarily upon Correct Ans-The operating
temperature that is expected within the fixture
The sheath covering Type NMC cable has the additional characteristics of Correct Ans-Being
fungus and corrosion-resistant
