Mechanical Engineering :: Heat Transfer,Refrigeration and Air Conditioning
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The cooling system used for supersonic aircrafts and rockets is
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Which of the following statement is correct?
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The desirable property of a refrigerant is
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The humidification process, on the psychrometric chart is shown by
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The colour of the flame of halide torch, in case of leakage of freon refrigerant, will change to
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The wet bulb depression indicates __________ humidity of the air.
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The refrigerant widely used in domestic refrigerators is
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When absorptivity (α) = 1, reflectivity (ρ) = 0 and transmittivity (τ) = 0, then the body is said to be a
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In a vapour compression system, the condition of refrigerant before passing through the condenser is
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A.
In vapour absorption refrigerator, the compression of refrigerent is avoided.
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B.
Sub-cooling can be achieved by circulating more quantity of cooling water through the condenser.
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C.
In vapour compression refrigeration, the vapour is drawn in the compressor cylinder during its suction stroke and is compressed adiabatically during the compression stroke.
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D.
all of the above
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