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Refrigeration and Air Conditioning

Refrigeration and Air Conditioning
The sub-cooling in a refrigeration cycle

None of these
Increases C.O.P.
Decreases C.O.P.
Does not alter C.O.P.

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Refrigeration and Air Conditioning
A human body feels comfortable when the heat produced by the metabolism of human body is equal to the

Difference of (A) and (B)
Heat stored in the human body
Sum of (A) and (B)
Heat dissipated to the surroundings

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Refrigeration and Air Conditioning
In which of the following refrigeration system, waste heat can be effectively used?

Air refrigeration cycle
Vapour compression cycle
None of the listed here
Vapour absorption cycle

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Refrigeration and Air Conditioning
The condition of refrigerant as it leaves the compressor in a vapour compression system is

Superheated vapour
Saturated liquid
Dry saturated vapour
Wet vapour

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Refrigeration and Air Conditioning
The horizontal and non-uniformly spaced lines on a psychrometric chart indicates

Dry bulb temperature
Wet bulb temperature
Specific humidity
Dew point temperature

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

0.1 ton
10 tons
5 tons
40 tons

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