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Refrigeration and Air Conditioning

Refrigeration and Air Conditioning
The boiling point of ________ is 10.5°C.

Ammonia
Sulphur dioxide
Carbon dioxide
R-12

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Refrigeration and Air Conditioning
The colour of the flame of halide torch, in case of leakage of Freon refrigerant, will change to

Bright green
Yellow
Red
Orange

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Refrigeration and Air Conditioning
Pick up the correct statement about giving up of heat from one medium to other in ammonia absorption system

Strong solution to ammonia vapour
Ammonia vapours to weak solution
Weak solution to strong solution
Strong solution to weak solution

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Refrigeration and Air Conditioning
The optimum effective temperature for human comfort is

Same in winter and summer
Lower in winter than in summer
Not dependent on season
Higher in winter than in summer

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Refrigeration and Air Conditioning
In vapour compression cycle, the condition of refrigerant is saturated liquid

After passing through the condenser
Before entering the expansion valve
After passing through the expansion throttle valve
Before passing through the condenser

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Refrigeration and Air Conditioning
Most of the domestic refrigerators work on the following refrigeration system

Vapour absorption
Carnot cycle
Electrolux refrigerator
Vapour compression

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MORE MCQ ON Refrigeration and Air Conditioning

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