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Refrigeration and Air Conditioning

Refrigeration and Air Conditioning
Air refrigeration cycle is used in

Domestic refrigerators
Gas liquefaction
Commercial refrigerators
Air conditioning

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Refrigeration and Air Conditioning
The humidification process, on the psychrometric chart is shown by

Vertical line
Horizontal line
Curved line
Inclined line

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Refrigeration and Air Conditioning
The colour of the flame of halide torch, in case of leakage of Freon refrigerant, will change to

Orange
Red
Yellow
Bright green

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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.

Increase
Reduce
Equalize
None of these

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Refrigeration and Air Conditioning
The operating pressure for refrigerating units using R-12 as a refrigerant is

8 bar
15 bar
2 bar
30 bar

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Refrigeration and Air Conditioning
The reduced ambient air cooling system has

One cooling turbine and two heat exchangers
Two cooling turbines and two heat exchangers
Two cooling turbines and one heat exchanger
One cooling turbine and one heat exchanger

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MORE MCQ ON Refrigeration and Air Conditioning

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