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Refrigeration and Air Conditioning

Refrigeration and Air Conditioning
The difference between dry bulb temperature and wet bulb temperature, is called

Dew point depression
Wet bulb depression
Degree of saturation
Dry bulb depression

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Refrigeration and Air Conditioning
On the pressure-enthalpy diagram, condensation and desuperheating is represented by a horizontal line because the process

Takes place at constant pressure
Takes place at constant entropy
Involves no change in volume
Takes place at constant temperature

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

Two fluids
Single fluid
Three fluids
None of the listed here

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Refrigeration and Air Conditioning
Which of the following is not a desirable property of a refrigerant?

Large latent heat
Low boiling point
Good electrical conductor
High risibility with oil

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Refrigeration and Air Conditioning
The heat rejection factor (HRF) is given by

1 - C.O.P.
1 + (1/C.O.P)
1 + C.O.P
1 - (1/C.O.P)

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Refrigeration and Air Conditioning
The refrigerant after condensation process is cooled below the saturation temperature before throttling. Such a process is called

Normal cooling
Sub-cooling or under-cooling
Super-cooling
None of the listed here

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