A reversing valve is ________
A) a special relay used to reverse the direction in which the compressor motor runs
B) a special valve that can be used as either a fill valve or a drain valve for a heat pump
C) a special type of solenoid used in heat pumps
C
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Water hardness is measured in grains per _____.
a. cubic centimeter b. ounce c. liter d. gallon
The force of the wind is dependent on the pressure differences that exist in an area. However, wind is more commonly measured by determining its _______________
Fill in the blank(s) with the appropriate word(s).
List two advantages of a public-private partnership (PPP).
What will be an ideal response?
All of these are hazardous waste EXCEPT __________
A) Air-conditioning refrigerant and oils B) Used engine coolant and antifreeze C) Cleaning solvent D) All of these are hazardous wastes