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Refrigeration and Air Conditioning

Refrigeration and Air Conditioning
Freon group of refrigerants are

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

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Refrigeration and Air Conditioning
Air refrigeration operates on

Brayton cycle
Reversed Carnot cycle
Rankine’s cycle
Carnot cycle

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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.

Reduce
None of these
Equalize
Increase

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Refrigeration and Air Conditioning
The specific humidity during dehumidification process

Decreases
None of these
Remains constant
Increases

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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
At lower temperatures and pressures, the latent heat of vaporisation of a refrigerant

remains same
decreases
depends on other factors
increases

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MORE MCQ ON Refrigeration and Air Conditioning

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