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Refrigeration and Air Conditioning

Refrigeration and Air Conditioning
The difference between dry bulb temperature and dew point temperature, is called

Dry bulb depression
Dew point depression
Wet bulb depression
Degree of saturation

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Refrigeration and Air Conditioning
The index which correlates the combined effects of air temperature, relative humidity and air velocity on the human body, is known as

Effective temperature
None of the listed here
Mean radiant temperature
Dew point temperature

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Refrigeration and Air Conditioning
The coefficient of performance of a domestic refrigerator is ________ as compared to a domestic air-conditioner.

Less
Same
None of these
More

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Refrigeration and Air Conditioning
The dry bulb temperature lines, on the psychrometric chart are

Curved lines
Horizontal and non-uniformly spaced
Horizontal and uniformly spaced
Vertical and uniformly spaced

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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)

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

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Refrigeration and Air Conditioning
In a refrigeration cycle, the flow of refrigerant is controlled by

Compressor
Expansion valve
Evaporator
Condenser

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MORE MCQ ON Refrigeration and Air Conditioning

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