Refrigeration & Air Conditioning – HI MCQ!

The evaporator used in house-hold refrigerators is?

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The capillary tube is not used in large capacity refrigeration systems because?

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A valve which maintains a constant degree of superheat at the end of the evaporator called?

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If a gas is to be liquified, its temperature must be?

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The critical temperature is the temperature?

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The critical pressure of a liquid is the pressure?

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The ratio of the actual mass of water vapour in a unit mass of dry air to the mass of water vapour in the same mass of dry air when it is saturated at the same temperature and pressure, is called?

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Dry bulb temperature is the temperature of air recorded by a thermometer, when?

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The refrigerant widely used in domestic refrigerators is?

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Environmental protection agencies advice against the use of chloro-fluoro-carbon refrigerants since?

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