Chilled water systems use a primary refrigerant to remove heat from a secondary refrigerant in a chiller unit. What is the secondary refrigerant in such systems?
A) Ammonia B) R22 C) R134A D) Water
D
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Where the MMC modifier is specified in the tolerance portion of a feature control frame, what four items should come to mind?
What will be an ideal response?
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In a parallel RL circuit where one branch contains a resistor and a separate branch contains an inductor, if IL=3A and IR=4A, then IT=____________________ A.
Fill in the blank(s) with the appropriate word(s).
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What type of acid is found in the electrolyte of a lead-acid battery?
A) Organic acid B) Flux acid C) Sulfuric acid D) Oxylic acid
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By the late ________ century the Mediterranean world that the Romans had built had been largely unmade.
a. third b. fourth c. fifth d. sixth
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