A two-pronged plug that distinguishes between the grounded conductor and the “hot” conductor by having a grounded conductor prong that is wider than the “hot” conductor prong is called a(n) ____________________ plug.
Fill in the blank(s) with the appropriate word(s).
polarized
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Conductors are required to be identified by which two colors?
What will be an ideal response?
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Section 3.11.5.3 of the International Building Code® specifies that risers cannot be more than 7 3/4 inches high and treads must be at least ____ inches deep.
A. 7 B. 8 C. 9 D. 10
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Nonmetallic-sheathed cable not fastened to the box must be secured within ____ in. of the box.
A. 2 B. 6 C. 8 D. 10
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PVC drain lines on rooftop units should be insulated:
A) To improve system efficiency. B) To prevent deterioration of the PVC from exposure to UV. C) To avoid heating the condensate water. D) To reduce the sound created by the high velocity through the drain.
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