Q. The C.O.P. of a refrigerator working on a reversed Carnot cycle is (where T1 = Lowest absolute temperature, and T2 = Highest absolute temperature)

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Q. A refrigerant compressor is used to

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Q. In which of the following refrigeration system, waste heat can be effectively used?

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Q. The temperature of air recorded by a thermometer, when it is not effected by the moisture present in the air, is called

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Q. A human body feels comfortable when the heat produced by the metabolism of human body is equal to the

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Q. During sensible cooling,

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Q. The wave length of the radiation emitted depends only on the temperature and is independent of the material of the body.

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Q. The process of heat transfer from one particle of the body to another by the actual motion of the heated particles, is called

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Q. The power per tonne of refrigeration is

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Q. The process of heat transfer from one particle of the fluid to another by the actual movement of the fluid particles due to difference of density caused by temperature of the particle is known as

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Q. The thermostatic expansion valve is also called

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Q. The specific humidity during cooling and dehumidification

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Q. During heating and humidification, the final relative humidity of air

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Q. The fluids used in electrolux refrigerator are

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Q. The process of undercooling is generally brought about by

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Q. The refrigerant after condensation process is cooled below the saturation temperature before throttling. Such a process is called

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Q. R-12 has the __________ freezing point.

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Q. During sensible heating of air __________ decreases.

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Q. The overall coefficient of heat transfer is used in problems of

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Q. The boiling point of R-12 is about - 30°C.

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