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Refrigeration and Air Conditioning

Refrigeration and Air Conditioning
During dehumidification process, _________ remains constant.

Specific humidity
Dry bulb temperature
Relative humidity
Wet bulb temperature

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Refrigeration and Air Conditioning
At lower temperatures and pressures, the latent heat of vaporisation of a refrigerant

increases
decreases
depends on other factors
remains same

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Refrigeration and Air Conditioning
In a vapour compression system, the condition of refrigerant is dry saturated vapour

After leaving the condenser
After leaving the compressor
Before entering the compressor
Before entering the condenser

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Refrigeration and Air Conditioning
The C.O.P. of a Carnot refrigerator in winter will be _________ as compared to C.O.P. in summer.

Same
None of these
Higher
Lower

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Refrigeration and Air Conditioning
If a heat pump cycle operates between the condenser temperature of +27°C and evaporator temperature of -23°C, then the Carnot COP will be

6
0.2
1.2
5

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Refrigeration and Air Conditioning
Moisture in Freon refrigeration system causes

Corrosion of whole system
High power consumption
Ineffective refrigeration
Freezing automatic regulating valve

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MORE MCQ ON Refrigeration and Air Conditioning

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