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Refrigeration and Air Conditioning

Refrigeration and Air Conditioning
The specific humidity during dehumidification process

Remains constant
Increases
Decreases
None of these

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Refrigeration and Air Conditioning
Chaperon equation is a relation between

Temperature, pressure and enthalpy
Temperature, pressure, specific volume and enthalpy
Temperature and enthalpy
Specific volume and enthalpy

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Refrigeration and Air Conditioning
In a spray washing system, if the temperature of water is higher than the dry bulb temperature of entering air, then the air is

Heated and dehumidified
Cooled and dehumidified
Heated and humidified
Cooled and humidified

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Refrigeration and Air Conditioning
Nusselt number (NN) is given by

NN = V²/t.cp
NN = μ cp/k
NN = ρ V l /μ
NN = hl/k

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Refrigeration and Air Conditioning
In air-conditioning of aeroplanes, using air as a refrigerant, the cycle used is

Reversed Joule cycle
Reversed Otto cycle
Reversed Brayton cycle
Reversed Carnot cycle

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Refrigeration and Air Conditioning
Rating of a domestic refrigerator is of the order of

10 tons
5 tons
0.1 ton
40 tons

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MORE MCQ ON Refrigeration and Air Conditioning

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