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Refrigeration and Air Conditioning

Refrigeration and Air Conditioning
The Freon group of refrigerants are

Inorganic refrigerants
Hydrocarbon refrigerants
Zoetrope refrigerants
Halocarbon refrigerants

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Refrigeration and Air Conditioning
Which of the following statement is correct for ammonia as a refrigerant?

All of these
It requires large displacement per TR compared to fluoro carbons.
It is toxic to mucous membranes.
It reacts with copper and its alloys.

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Refrigeration and Air Conditioning
Pressure of water vapour is given by

[Pv (Pb - Pd)]/ [Pd (Pb - Pv)]
None of these
μ/[1 - (1 - μ) (Ps/Pb)]
0.622 Pv/ (Pb - Pv)

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Refrigeration and Air Conditioning
In a psychrometric chart, specific humidity (moisture content) lines are

Horizontal and non-uniformly spaced
Vertical and uniformly spaced
Horizontal and uniformly spaced
Curved lines

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Refrigeration and Air Conditioning
The C.O.P. of a Carnot refrigerator in winter will be _________ as compared to C.O.P. in summer.

Lower
Same
None of these
Higher

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Refrigeration and Air Conditioning
In a vapour absorption refrigeration system, the compressor of the vapour compression system is replaced by

Liquid pump
Absorber, generator and liquid pump
Generator
Absorber and generator

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MORE MCQ ON Refrigeration and Air Conditioning

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