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Refrigeration and Air Conditioning

Refrigeration and Air Conditioning
Pressure of water vapour is given by

None of these
0.622 Pv/ (Pb - Pv)
μ/[1 - (1 - μ) (Ps/Pb)]
[Pv (Pb - Pd)]/ [Pd (Pb - Pv)]

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Refrigeration and Air Conditioning
The bank of tubes at the back of domestic refrigerator is

Capillary tubes
Condenser tubes
Refrigerant cooling tubes
Evaporator tubes

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

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

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Refrigeration and Air Conditioning
Bell Coleman cycle is a

Reversed Carnot cycle
Reversed Joule cycle
Reversed Otto cycle
Reversed Rankine cycle

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Refrigeration and Air Conditioning
In a refrigeration system, the expansion device is connected between the

Evaporator and compressor
Receiver and evaporator
Condenser and receiver
Compressor and condenser

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Refrigeration and Air Conditioning
The boiling point of ammonia is

-33.3°C
-30°C
-10.5°C
-77.7°C

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