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Refrigeration and Air Conditioning

Refrigeration and Air Conditioning
Where does the lowest temperature occur in a vapour compression cycle?

Evaporator
Compressor
Expansion valve
Condenser

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Refrigeration and Air Conditioning
The ratio of actual mass of water vapour in a given volume of moist air to the mass of water vapour in the same volume of saturated air at the same temperature and pressure, is called

Relative humidity
Absolute humidity
Degree of saturation
Humidity ratio

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Refrigeration and Air Conditioning
Highest temperature encountered in refrigeration cycle should be

Much below critical temperature
At critical Temperature
Near critical temperature of refrigerant
Above critical temperature

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Refrigeration and Air Conditioning
The capacity of a domestic refrigerator is in the range of

5 to 7 TR
0.1 to 0.3 TR
3 to 5 TR
1 to 3 TR

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Refrigeration and Air Conditioning
In a flooded evaporator refrigerator, an accumulator at suction of compressor is used to

Superheat the vapour
Collect liquid refrigerant and prevent it from going to compressor
Detect liquid in vapour
Collect vapours

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Refrigeration and Air Conditioning
A certain refrigerating system has a normal operating suction pressure of 10 kg/cm gauge and condensing pressure of about 67 kg/cm. The refrigerant used is

Brine
Ammonia
Carbon dioxide
Freon

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MORE MCQ ON Refrigeration and Air Conditioning

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