According to Article 110 of the NEC, if openings in nonmetallic boxes are removed and not used, the entire box must be __________.
What will be an ideal response?
replaced
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A 13/ /4-inch square power takeoff shaft needs to be covered with a round guard. The guard should have at least 1/ /2-inch clearance at all points. What measure should the inside diameter of the guard have?
What will be an ideal response?
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Limit switches should be checked daily on overhead cranes.
Answer the following statement true (T) or false (F)
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What causes door gaskets to deteriorate?
a. Drying out from low humidity in kitchens. b. Lack of maintenance and cleaning of the gaskets. c. Acids from tomatoes and vinegar when the box is used in a salad prep area.
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A map created from photographs of the earth's surface describes ___________________
Fill in the blank(s) with correct word
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