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Refrigeration and Air Conditioning

Refrigeration and Air Conditioning
During humidification process, __________ increases.

Dry bulb temperature
Specific humidity
Relative humidity
Wet bulb temperature

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Refrigeration and Air Conditioning
The heat rejection factor (HRF) is given by

1 - (1/C.O.P)
1 + (1/C.O.P)
1 + C.O.P
1 - C.O.P.

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Refrigeration and Air Conditioning
The material of pipe lines for a system using Freon as a refrigerant should be

Copper
Steel
Aluminium
Brass

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Refrigeration and Air Conditioning
The C.O.P. of a heat pump working on a reversed Carnot cycle is

(T₁ - T₂)/T₁
(T₂ - T₁)/T₁
T₂/(T₂ - T₁)
T₁/(T₂ - T₁)

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Refrigeration and Air Conditioning
In a domestic refrigerator, a capillary tube controls the flow of refrigerant from the

Expansion valve to the evaporator
Condenser to the expansion valve
Condenser to the evaporator
Evaporator to the thermostat

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Refrigeration and Air Conditioning
The leakage in a refrigeration system using Freon is detected by

Sulphur sticks
Halide torch
Soap and water
All of these

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MORE MCQ ON Refrigeration and Air Conditioning

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