Q. For unsaturated air, the dew point temperature is __________ wet bulb temperature.

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Q. During dehumidification process, __________ remains constant.

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Q. Pressure of water vapour is given by

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Q. The value of the wave length for maximum emissive power is given by

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Q. Emissivity of a body will be equal to its absorptivity at all temperatures.

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Q. Dehydration is the process of removing water vapour from the surrounding air.

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Q. The cooling of air, without any change in its specific humidity, is known as sensible cooling.

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Q. The capacity of the cooling tower and spray ponds __________ as the wet bulb temperature of air decreases.

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Q. A mixture of dry air and water vapour, when the air has diffused the maximum amount of water vapour into it, is called

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Q. The total pressure exerted by the mixture of air and water vapour is equal to the sum of pressures which each constituent would exert, if it occupied the same space by itself. This statement is called

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Q. The expansion valve in a refrigerator controls the flow of refrigerant.

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Q. Upto the critical radius of insulation,

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Q. The relative humidity lines on a psychrometric chart are

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Q. The C.O.P. of a heat pump working on a reversed Carnot cycle is

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Q. A vapour absorption refrigeration system

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Q. The comfort conditions in air conditioning are at (where DBT = Dry bulb temperature, and RH = Relative humidity)

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Q. The dry bulb temperature lines, on the psychrometric chart are

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Q. The pressure at the outlet of a refrigerant compressor is called

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Q. A simple air cooling system is good for __________ flight speeds.

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Q. The highest temperature during the cycle in a vapour compression system occurs after evaporation.

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