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Refrigeration and Air Conditioning

Refrigeration and Air Conditioning
The bank of tubes at the back of domestic refrigerator is

Refrigerant cooling tubes
Capillary tubes
Condenser tubes
Evaporator tubes

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Refrigeration and Air Conditioning
The thermostatic expansion valve is used in ________ type of evaporators.

Flooded
Dry
DX coil
None of these

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Refrigeration and Air Conditioning
Which of the following statement is correct for ammonia as a refrigerant?

It is toxic to mucous membranes.
It requires large displacement per TR compared to fluoro carbons.
All of these
It reacts with copper and its alloys.

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Refrigeration and Air Conditioning
For air conditioning the operation theater in a hospital, the percentage of outside air in the air supplied is

50
Zero
100
20

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Refrigeration and Air Conditioning
Most thermostatic expansion valves are set for a superheat of

5°C
20°C
10°C
15°C

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

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

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MORE MCQ ON Refrigeration and Air Conditioning

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