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Refrigeration and Air Conditioning

Refrigeration and Air Conditioning
Under cooling in a refrigeration cycle

Other factors decide C.O.P
O.P remains unaltered
Decreases C.O.P
Increases C.O.P

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Refrigeration and Air Conditioning
The C.O.P. of a refrigerator working on a reversed Carnot cycle is (where T₁ = Lowest absolute temperature, and T₂ = Highest absolute temperature)

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

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Refrigeration and Air Conditioning
In a vapour compression system, the condition of refrigerant before passing through the condenser is

Wet vapour
Dry saturated vapour
Saturated liquid
Superheated vapour

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Refrigeration and Air Conditioning
The specific humidity during cooling and dehumidification

None of these
Decreases
Remains constant
Increases

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Refrigeration and Air Conditioning
The human body feels comfortable when the heat stored in the body is

None of these
Negative
Zero
Positive

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Refrigeration and Air Conditioning
In chemical dehumidification process,

All of these
Dry bulb temperature increases
Wet bulb temperature decreases
Dew point temperature decreases

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MORE MCQ ON Refrigeration and Air Conditioning

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