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Refrigeration and Air Conditioning

Refrigeration and Air Conditioning
The refrigerant used for absorption refrigerators working on heat from solar collectors is a mixture of water and

Lithium bromide
R-12
Sulphur dioxide
Carbon dioxide

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

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

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Refrigeration and Air Conditioning
During a refrigeration cycle, heat is rejected by the refrigerant in a

Compressor
Expansion valve
Evaporator
Condenser

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Refrigeration and Air Conditioning
For obtaining high COP, the pressure range of compressor should be

High
Any value
Optimum
Low

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Refrigeration and Air Conditioning
The emissivity of a polished silver body is ____ as compared to black body.

Low
High
Very low
Same

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

40 tons
0.1 ton
10 tons
5 tons

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MORE MCQ ON Refrigeration and Air Conditioning

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