The centrifugal compressors are generally used for refrigerants that require
Answer: D
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The heat transfer takes place according to
Answer: C
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Which of the following statement is correct?
Answer: D
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The formation of frost on cooling coils in a refrigerator
Answer: C
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Which of the following statement is correct?
Answer: B
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The total radiation from a black body per second per unit area is __________ fourth power of the absolute temperature. This statement is known as Stefan-Boltzmann law.
Answer: B
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For ammonia refrigerating systems, the tubes of a shell and tube condenser are made of
Answer: C
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The critical pressure of a liquid is the pressure
Answer: A
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A pressure gauge on the discharge side of a refrigerant compressor reads too high. The reasons will be
Answer: D
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The curved lines on a psychrometric chart indicates
Answer: D
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