If Type AC is run through a hole in a framing member that has an edge closer than ____________________ inch(es) to the edge of the framing member, it must be protected by a metal plate at least 1/16-inch thick.
Fill in the blank(s) with the appropriate word(s).
1-1/4
1 1/4
1.25
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A) Is released by a group of springs B) Is applied by hydraulic pressure C) Self-applies whenever one of the races tries to rotate in a reverse direction D) Any of these
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Class II locations are hazardous because of the presence of ____.
A. combustible vapors B. potential arcing C. volatile mixtures D. combustible dust
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Heat from welding may:
A) Reduce corrosion resistance in stainless steels B) Cause excessive distortion, rendering the welded part useless C) Cause cracking in carbon steel D) All of the above
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Changing 32 degree water to 32 degree ice involves which type of heat?
A. Latent B. Sensible C. Both D. Neither
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