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Refrigeration and Air Conditioning

Refrigeration and Air Conditioning
An Electrolux refrigerator is called a ___ absorption system.

Single fluid
Three fluids
None of the listed here
Two fluids

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Refrigeration and Air Conditioning
Pick up the wrong statement. A refrigerant should have

High latent heat of vaporisation
Tow specific heat of liquid
High boiling point
Higher critical temperature

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Refrigeration and Air Conditioning
Vapour compression refrigeration is somewhat like

Carnot cycle
Reversed Carnot cycle
None of these

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Refrigeration and Air Conditioning
The dry bulb temperature during sensible heating of air

Decreases
None of these
Remains constant
Increases

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Refrigeration and Air Conditioning
If a heat pump cycle operates between the condenser temperature of +27°C and evaporator temperature of -23°C, then the Carnot COP will be

0.2
1.2
6
5

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Refrigeration and Air Conditioning
Which of the following refrigerant has the highest freezing point.

Sulphur dioxide
Carbon dioxide
Ammonia
R-12

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