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. PI
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All of these are important convenience factors except.
A) Payment methods B) Size of parking lot C) Size of buildinig D) Hours of operation
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Which of the following would not necessarily describe a product that has undergone Incremental Innovation?
A. Better B. Cheaper C. Faster D. Bigger
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Coolant is water and ________
A) Methanol B) Kerosene C) Glycerin D) Ethylene glycol
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What represents what you typically think of as the color?
A. hue B. texture C. intensity D. rhythm
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