Article __________ in the NEC® covers the requirements for swimming pools, hot tubs, and hydromassage tubs.
a. 110
b. 250
c. 440
d. 680
d. 680
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Technician A says that loads should never be transported over other workers using a crane. Technician B says that it is acceptable to leave a load suspended on a crane as long as it is only for a short time. Who is correct?
A. Technician A B. Technician B C. Both D. Neither
What type of valves are designed to receive high pressure at the inlet and automatically maintain a constant lower pressure at the outlet?
A. open-close B. flow regulation C. relief D. automatic pressure reducing
A vehicle is undergoing a SHED test. What is being measured?
A) Evaporative emissions B) Zero emissions C) Lighting pollution D) Tail pipe gasses
A valve will expand in length when it is heated. The length of the valve when cold is 4.6250 inches. It expands 0.0027 inch when heated. What is its length when hot?
A. 4.6257 B. 4.6266 C. 4.6271 D. 4.6277