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Refrigeration and Air Conditioning

Refrigeration and Air Conditioning
Rating of a domestic refrigerator is of the order of

0.1 ton
5 tons
40 tons
10 tons

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Refrigeration and Air Conditioning
The pressure at the outlet of a refrigerant compressor is called

Critical pressure
Discharge pressure
Back pressure
Suction pressure

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Refrigeration and Air Conditioning
The dry bulb temperature lines, on the psychrometric chart are

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

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Refrigeration and Air Conditioning
Mass flow ratio of NH₃ in comparison to Freon-12 for same refrigeration load and same temperature limits is of the order of

1: 3
1: 1
9: 1
1: 9

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Refrigeration and Air Conditioning
Most air cooled condensers are designed to operate with a temperature difference of

8°C
14°C
22°C
5°C

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Refrigeration and Air Conditioning
When the temperature of the surrounding is higher than the temperature of the body, then the heat loss by convection from the body to the surrounding will be

Negative
Zero
None of the listed here
Positive

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MORE MCQ ON Refrigeration and Air Conditioning

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