Glycol solutions are added to water in secondary refrigerant loops
A) To lubricate the circulating pump bearings B) To increase the system heat transfer
C) To make leaks easier to locate D) To prevent freezing and inhibit corrosion
D
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A ____ is a circular tube that is closed at one end.
a. valve b. head c. shaft d. cylinder
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How many acres of organically produced crops are there in the U.S.?
What will be an ideal response?
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The amount of deviation of the measured step size from the ideal step size is a measure of
A) resolution. B) monotonicity. C) linearity. D) accuracy.
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Wood fibers are bound together by a substance called _____
a. lignin b. lanolin c. lignite d. lactose
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