Which of the following is approved for use in most Class I, Division 1 locations?
a. Rigid metal conduit
b. PVC
c. Liquid-tight conduit
d. EMT
a. Rigid metal conduit
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To be recognized as an air barrier, the building code requires its maximum air permeability to not exceed that of a commonly used building material. What is that material and its thickness?
What will be an ideal response?
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Two-point perspective is a realistic way of drawing objects in three dimensions using two ____ points.
A. value B. key C. vanishing D. horizon
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If two 4-ohm speakers are connected in series, meaning the positive (+) of one speaker is connected to the negative (-) of the other speaker, the total impedance will be ________
A) 4 B) 6 C) 8 D) 2
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When steel wool is used to clean copper tubing, it should be _____
a. No. 00 b. No. 01 c. No. 02 d. No. 03
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