Conductors must be derated when installed in conduit _____.
a. in wet locations
b. in garages
c. on or above rooftops
d. underneath roadways
c. on or above rooftops
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Describe an orifice and its action.
What will be an ideal response?
Which of these wrenches is recommended for loosening AC refrigerant lines?
A) Combination wrench B) Box end wrench C) Flare-nut wrench D) None of these
In the accompanying figure, the letter L indicates the ____.
A. linear dimension B. lateral dimension C. length dimension D. location dimension
The welding torch is held in place for a short time after a weld bead is terminated to allow _____
a. the post-flow of shielding gas to protect the weld, electrode, and filler metal b. the tungsten electrode to oxidize c. the torch cooling water to also cool the weld d. weld puddle to remain fluid as long as possible