How many air changes per hour can a fan moving 200 CFM provide for a room with 500 sq ft of floor space and 8-ft ceilings?
A) 3 air changes B) 20 air changes C) 1 air change D) 12 air changes
A
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A new refrigerant, required to be used in the USA beginning in year 2021, is ________.
A) SNAP 2011 B) R 1234yf C) R 134a D) R 744
The analogy that explains why it is important to allow the customer to vent and tell their story before you do anything else is called _______
A) Letting off steam B) The plate C) The bucket D) Letting it all out
Who is the person that greets the service customer and completes the work order?
A) Service manager B) Service writer C) Service advisor D) Either B or C
An electrochemical reaction occurs because ____
a. an anion turns into a cation b. a cation turns into an anion c. oxidation/reduction reactions move electrons d. an electrolyte goes through combustion