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Refrigeration and Air Conditioning

Refrigeration and Air Conditioning
The vapour compression refrigerator employs the following cycle

Carnot
Reversed Carnot
Reversed Rankine
Rankine

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Refrigeration and Air Conditioning
In a domestic vapour compression refrigerator, the refrigerant commonly used is

R-12
CO?
Ammonia
All of these

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Refrigeration and Air Conditioning
Freon group of refrigerants are

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

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

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

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Refrigeration and Air Conditioning
In refrigerators, the temperature difference between the evaporating refrigerant and the medium being cooled should be

High, of the order of 25°
Any value
As low as possible (3 to 11°C)
Zero

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

8 bar
2 bar
30 bar
15 bar

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MORE MCQ ON Refrigeration and Air Conditioning

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