Near-azeotropic refrigerants are technically _____.
a. HFCs
b. HCFCs
c. zeotropes
d. compounds
c. zeotropes
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What is the purpose of a cooling tower?
a. Cool hydrocarbons and excess vapors b. Emergency quench cooling for reactors c. Provide cooling during summer months for control rooms. d. Cool water for industrial applications.
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Most occupants will normally operate their system at about ____ °F.
A. 68 B. 72 C. 75 D. 80
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The ____________________ is the device that responds to a change in conditions.
Fill in the blank(s) with the appropriate word(s).
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Describe how a low-pass filter works.
What will be an ideal response?
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