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Refrigeration and Air Conditioning

Refrigeration and Air Conditioning
An Electrolux refrigerator is called a ___ absorption system.

None of the listed here
Single fluid
Two fluids
Three fluids

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Refrigeration and Air Conditioning
The boiling point of ammonia is

-33.3°C
-10.5°C
-30°C
-77.7°C

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Refrigeration and Air Conditioning
During a refrigeration cycle, heat is rejected by the refrigerant in a

Compressor
Expansion valve
Condenser
Evaporator

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Refrigeration and Air Conditioning
Short horizontal lines on pressure-enthalpy chart show

Constant pressure lines
Constant entropy lines
Constant total heat lines
Constant temperature lines

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Refrigeration and Air Conditioning
In a vapour compression system, the condition of refrigerant is dry saturated vapour

Before entering the compressor
After leaving the condenser
Before entering the condenser
After leaving the compressor

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Refrigeration and Air Conditioning
Mass flow ratio of NH₃ in comparison to Freon-12 for same refrigeration load and same temperature limits is of the order of

9: 1
1: 3
1: 9
1: 1

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MORE MCQ ON Refrigeration and Air Conditioning

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