Which control algorithm is typically used in HVAC equipment when the controlled variable changes slowly
over time?
a. P
b. PI
c. PID
d. PIE
b
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In the accompanying figure, d = 5 and e = 12. Find x.
A. 5 B. 8 C. 9 D. 13
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Minerals are not dietary essentials
Indicate whether this statement is true or false.
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Ratings that are not completely accurate are known as ____.
A. load ratings B. maximal ratings C. nominal ratings D. floor ratings
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Which type of heat pump system can be used with a hot water radiant floor heating system?
A) water to air B) air to air C) air to water D) traditional mini-split
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