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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Q. A condenser is used in the __________ pressure side of a refrigerating system.

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Q. A steam pipe is to be lined with two layers of insulating materials of different thermal conductivities. For the minimum heat transfer,

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Q. In a parallel flow heat exchanger, the rate of flow of heat and the rate of decrease of temperature are maximum.

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Q. When the air is passed through an insulated chamber having sprays of water maintained at a temperature higher than the dew point temperature of entering air but lower than its dry bulb temperature, then the air is said to be

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Q. Which of the following statement is wrong?

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Q. In a domestic refrigerator, a capillary tube controls the flow of refrigerant from the

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