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Refrigeration and Air Conditioning

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

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

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Refrigeration and Air Conditioning
Presence of moisture in a refrigerant affects the working of

Compressor
Evaporator
Expansion valve
Condenser

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Refrigeration and Air Conditioning
Wet bulb temperature is the temperature of air recorded by a thermometer, when

None of these
Its bulb is surrounded by a wet cloth exposed to the air
It is not affected by the moisture present in the air
The moisture present in it begins to condense

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Refrigeration and Air Conditioning
Vapour compression refrigeration is somewhat like

Reversed Carnot cycle
None of these
Carnot cycle

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Refrigeration and Air Conditioning
Which of the following refrigerant has the maximum ozone depletion potential in the stratosphere?

Sulphur dioxide
Ammonia
Fluorine
Carbon dioxide

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Refrigeration and Air Conditioning
In aqua ammonia and Lithium bromide water absorption refrigeration systems, the refrigerants are respectively

Ammonia and lithium bromide
Ammonia and water
Water and lithium bromide
Water and water

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MORE MCQ ON Refrigeration and Air Conditioning

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