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Refrigeration and Air Conditioning

Refrigeration and Air Conditioning
In a refrigeration cycle, the flow of refrigerant is controlled by

Expansion valve
Compressor
Condenser
Evaporator

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Refrigeration and Air Conditioning
Vertical lines on pressure-enthalpy chart show constant

Entropy lines
Pressure lines
Temperature lines
Total heat lines

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Refrigeration and Air Conditioning
The index which correlates the combined effects of air temperature, relative humidity and air velocity on the human body, is known as

Mean radiant temperature
Effective temperature
Dew point temperature
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?

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

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Refrigeration and Air Conditioning
The thermostatic expansion valve operates on the changes in the

Temperature of the evaporator
Pressure in the evaporator
None of these
Degree of superheat at exit from the evaporator

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Refrigeration and Air Conditioning
In mechanical refrigeration system, the refrigerant has the maximum temperature

In evaporator
Before expansion valve
Between compressor and condenser
Between condenser and evaporator

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MORE MCQ ON Refrigeration and Air Conditioning

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