What is the purpose of shutoff valves in the water loop of a water-source heat pump?
A) They are used to shut off different loop zones in a zoned loop system.
B) They allow water pressure to build.
C) They keep water inside the piping system.
D) They allow you to service a water-source unit.
D
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In which of the following buildings will heat flow occur unidirectionally?
A) Intermittently heated buildings B) Intermittently cooled buildings C) Continuously heated or cooled buildings D) All of the above E) None of the above
What types of cases are heard by the U.S. Court of Appeals?
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