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
Trades & Technology
You might also like to view...
Often, the heaviest lift on a construction job involves _____.
a. wood frame panels b. tilt-up concrete panels c. steel frame panels d. glulam members
Trades & Technology
One of the most serious diseases that affects most blueberries is mummy berry
Indicate whether the statement is true or false
Trades & Technology
The diesel exhaust fluid (DEF) should be refilled ________
A) Every day, in the morning with a cold engine B) When the warning light comes on C) At least once a month D) Weekly
Trades & Technology
A transformer with a turns ratio of 1:1 is often used to isolate a load from a source
Indicate whether the statement is true or false
Trades & Technology