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Refrigeration and Air Conditioning

Refrigeration and Air Conditioning
The relative coefficient of performance is

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

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

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

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Refrigeration and Air Conditioning
Which of the following cycles uses air as the refrigerant?

Carnot
Bell Coleman
Stirling
Ericson

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Refrigeration and Air Conditioning
One ton refrigeration corresponds to

50 kcal/ min
50 kcal/ hr
80 kcal/ hr
80 kcal/ min

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Refrigeration and Air Conditioning
A refrigeration cycle operates between condenser temperature of + 27°C and evaporator temperature of -23°C. The Carnot coefficient of performance of cycle will be

5
6
1.2
0.2

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Refrigeration and Air Conditioning
An important characteristic of absorption system of refrigeration is

very little power consumption
quiet operation
noisy operation
cooling below 0°C

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MORE MCQ ON Refrigeration and Air Conditioning

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