Zone control is accomplished in hydronic systems using thermostats that activate
A) a zone control valve for each zone B) a zone compressor for each zone
C) a zone boiler for each zone D) a zone damper for each zone
A
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____________________ is the poisonous, corrosive liquid in a typical battery.
Fill in the blank(s) with the appropriate word(s).
For loading and unloading equipment, a trailer should be parked _____.
a. with the towing vehicle uphill b. on level ground c. with the towing vehicle downhill d. and unhitched from the towing vehicle
The flour from white wheat is used for making mostly _____
A) crackers B) pastries C) breakfast cereals D) all of the above
An evaporator that covers the coils being cooled with liquid refrigerant is a:
A) Direct expansion evaporator. B) Carbureting evaporator. C) Flooded evaporator. D) Saturated evaporator.