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Refrigeration and Air Conditioning

Refrigeration and Air Conditioning
Hydrogen is used in Electrolux refrigeration system so as to _________ the rate of evaporation of the liquid ammonia passing through the evaporator.

Equalize
None of these
Increase
Reduce

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Refrigeration and Air Conditioning
In vapour compression cycle, the condition of refrigerant is very wet vapour

Before entering the compressor
Before passing through the condenser
After passing through the condenser
After passing through the expansion or throttle valve

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Refrigeration and Air Conditioning
In a vapour absorption refrigeration system, the compressor of the vapour compression system is replaced by

Generator
Absorber, generator and liquid pump
Liquid pump
Absorber and generator

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Refrigeration and Air Conditioning
The relative humidity lines on a psychrometric chart are

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

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Refrigeration and Air Conditioning
Superheating in a refrigeration cycle

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

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Refrigeration and Air Conditioning
The Freon group of refrigerants are

Hydrocarbon refrigerants
Inorganic refrigerants
Halocarbon refrigerants
Zoetrope refrigerants

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MORE MCQ ON Refrigeration and Air Conditioning

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