Q. The material of pipe lines for a system using freon as a refrigerant should be

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Q. The temperature of air recorded by a thermometer, when the moisture present in it begins to condense, is called wet bulb temperature.

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Q. In a pressure enthalpy chart, the space to the left of the saturated liquid line represents

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Q. It is desired to condition the outside air from 70% relative humidity and 45° C dry bulb temperature to 50% relative humidity and 25° C dry bulb temperature (room condition). The practical arrangement will be

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Q. During heating and dehumidification process, dry bulb temperature

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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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