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Refrigeration and Air Conditioning

Refrigeration and Air Conditioning
Most of the domestic refrigerators work on the following refrigeration system

Vapour absorption
Electrolux refrigerator
Vapour compression
Carnot cycle

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Refrigeration and Air Conditioning
Carbon dioxide is

Odourless
Colourless
Non-flammable
All of the listed here

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Refrigeration and Air Conditioning
Freon group of refrigerants are

Inflammable
Non-inflammable and toxic
Nontoxic and non-inflammable
Toxic

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Refrigeration and Air Conditioning
Most thermostatic expansion valves are set for a superheat of

20°C
10°C
15°C
5°C

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

Inclined line
Curved line
Vertical line
Horizontal line

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Refrigeration and Air Conditioning
The humidity ratio or specific humidity is the mass of water vapour present in

1 m3 of wet air
1 kg of wet air
1 m3 of dry air
1 kg of dry air

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MORE MCQ ON Refrigeration and Air Conditioning

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