Decreased pressure in a water supply system resulting from the water passing through fittings, meters, and other devices is referred to as _____.
a. system drop
b. fittings loss
c. drag loss
d. pressure drop
d. pressure drop
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Explain a balanced ration
What will be an ideal response?
Exposure to asbestos dust can cause what condition?
A) Asbestosis B) Lung cancer C) Mesothelioma D) All of these are possible.
This is one of the most common systems for heating and air conditioning circulates the air from the living spaces through or around heating or cooling devices:
A. central forced-air system B. forced-air system C. circulating forced-air system D. central-air system E. all of the above
If an air-cooled refrigeration or air-conditioning system must operate at low outdoor temperatures, a low ambient control is used to ________________________________________.
Fill in the blank(s) with the appropriate word(s).