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Refrigeration and Air Conditioning

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
The refrigerant supplied to a compressor must be

None of these
Superheated vapour refrigerant
Dry saturated liquid refrigerant
A mixture of liquid and vapour refrigerant

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Refrigeration and Air Conditioning
Pick up the wrong statement. A refrigerant should have

High latent heat of vaporisation
High boiling point
Tow specific heat of liquid
Higher critical temperature

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Refrigeration and Air Conditioning
The evaporator used in household refrigerators is

Non-frosting evaporator
Defrosting evaporator
Frosting evaporator
None of these

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Refrigeration and Air Conditioning
A mixture of dry air and water vapour, when the air has diffused the maximum amount of water vapour into it, is called

Specific humidity
Saturated air
Dry air
Moist air

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Refrigeration and Air Conditioning
The refrigerant after condensation process is cooled below the saturation temperature before throttling. Such a process is called

None of the listed here
Sub-cooling or under-cooling
Normal cooling
Super-cooling

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MORE MCQ ON Refrigeration and Air Conditioning

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