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Refrigeration and Air Conditioning

Refrigeration and Air Conditioning
The lowest temperature during the cycle in a vapour compression system occurs after

Compression
Condensation
Evaporation
Expansion

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Refrigeration and Air Conditioning
A refrigerant compressor is used to

Raise the pressure of the refrigerant
All of these
Circulate the refrigerant through the refrigerating system
Raise the temperature of the refrigerant

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Refrigeration and Air Conditioning
In S.J. unit, one ton of refrigeration is equal to

21 kJ/ min
210 kJ/ min
840 kJ/ min
420 kJ/ min

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Refrigeration and Air Conditioning
In a domestic refrigerator, a capillary tube controls the flow of refrigerant from the

Evaporator to the thermostat
Expansion valve to the evaporator
Condenser to the evaporator
Condenser to the expansion valve

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Refrigeration and Air Conditioning
The dry bulb temperature lines, on the psychrometric chart are

Curved lines
Vertical and uniformly spaced
Horizontal and uniformly spaced
Horizontal and non-uniformly spaced

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Refrigeration and Air Conditioning
If the evaporator temperature of a plant is lowered, keeping the condenser temperature constant, the h.p. of compressor required will be

Less
More/less depending on rating
More
Same

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MORE MCQ ON Refrigeration and Air Conditioning

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