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Refrigeration and Air Conditioning

Refrigeration and Air Conditioning
Air refrigerator works on

Bell Coleman cycle
None of these
Reversed Carnot cycle
Both (A) and (B)

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Refrigeration and Air Conditioning
The relative coefficient of performance is

Theoretical COP/actual COP
Actual COP/theoretical COP
None of these
Actual COP × theoretical COP

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Refrigeration and Air Conditioning
In a vapour compression system, the condition of refrigerant before passing through the condenser is

Wet vapour
Superheated vapour
Dry saturated vapour
Saturated liquid

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Refrigeration and Air Conditioning
In actual air-conditioning applications for R-12 and R-22, and operating at a condenser temperature of 40° C and an evaporator temperature of 5° C, the heat rejection factor is about

1.25
5.12
2.15
1

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Refrigeration and Air Conditioning
The domestic refrigerator uses following type of compressor

Piston type reciprocating
Axial
Miniature sealed unit
Centrifugal

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Refrigeration and Air Conditioning
The capillary tube, as an expansion device, is used in

Room air conditioners
All of these
Water coolers
Domestic refrigerators

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MORE MCQ ON Refrigeration and Air Conditioning

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