The term "listed" means that ____.
A. equipment, materials, or services meet appropriate designated standards or have been tested and found suitable for a specified purpose
B. equipment or material must continue to comply with the appropriate standards (or performance) under which the labeling was granted
C. equipment or material complies with discretionary standards as listed in the NEC®
D. equipment or material is listed for sale by general or subcontractors
Answer: A
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After a through-board burn has been cleaned and patched, name some further steps that should be taken to return the board to a serviceable condition.
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Which of the following is true of grinding tungsten electrodes?
A. If the grinder is used for metals other than tungsten, particles of these metals may become trapped on the tungsten as it is ground, resulting in contamination when the arc is started. B. A fine, hard grinding stone will result in more tungsten breakage and a poor finish. C. The grinder used to sharpen tungsten should have a coarse stone. D. A grinder should never be used to clean contaminated tungsten.
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Today, most market hogs are:
A. purebred and sold through special auctions B. purebred and sold through public stockyards C. crossbred and sold by direct marketing