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Refrigeration and Air Conditioning

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

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

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Refrigeration and Air Conditioning
The operating pressure for refrigerating units using R-12 as a refrigerant is

30 bar
2 bar
8 bar
15 bar

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Refrigeration and Air Conditioning
Pressure of water vapour is given by

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

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Refrigeration and Air Conditioning
In chemical dehumidification process,

Dew point temperature decreases
All of these
Dry bulb temperature increases
Wet bulb temperature decreases

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Refrigeration and Air Conditioning
During sensible cooling,

Specific humidity increases
Wet bulb temperature increases
Partial pressure of vapour remains constant
Relative humidity remains constant

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Refrigeration and Air Conditioning
For ammonia refrigerating systems, the tubes of a shell and tube condenser are made of

Brass
Steel
Aluminium
Copper

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MORE MCQ ON Refrigeration and Air Conditioning

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