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Refrigeration and Air Conditioning

Refrigeration and Air Conditioning
In order to collect liquid refrigerant and to prevent it from going to a ________, a device known as accumulator is used at the suction of compressor.

Evaporator
Compressor
Expansion valve
Condenser

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Refrigeration and Air Conditioning
Which of the following refrigerant is highly toxic and flammable?

R-12
Sulphur dioxide
Carbon dioxide
Ammonia

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Refrigeration and Air Conditioning
The bank of tubes at the back of domestic refrigerator is

Condenser tubes
Capillary tubes
Refrigerant cooling tubes
Evaporator tubes

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Refrigeration and Air Conditioning
The Freon group of refrigerants are

Zoetrope refrigerants
Hydrocarbon refrigerants
Halocarbon refrigerants
Inorganic refrigerants

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Refrigeration and Air Conditioning
The capacity of a domestic refrigerator is in the range of

1 to 3 TR
5 to 7 TR
3 to 5 TR
0.1 to 0.3 TR

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Refrigeration and Air Conditioning
The atmospheric air at dry bulb temperature of 15°C enters a heating coil maintained at 40°C. The air leaves the heating coil at 25°C. The bypass factor of the heating coil is

0.4
0.67
0.6
0.376

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