When refrigeration compressors are driven by conventional (nonhermetic) motors, the motors and controls are subject to the requirements in _____.
a. NEC Article 420
b. NEC Article 430
c. NEC Article 440
d. NEC Article 450
b. NEC Article 430
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A building requires a pump with a head pressure of 15 feet and a flow rate of 12 gallons per minute. Which of the following pumps should be used, based on the supplied performance data?
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