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Refrigeration and Air Conditioning

Refrigeration and Air Conditioning
If a heat pump cycle operates between the condenser temperature of +27°C and evaporator temperature of -23°C, then the Carnot COP will be

1.2
6
5
0.2

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Refrigeration and Air Conditioning
For large tonnage (more than 200 TR) air-conditioning applications, the compressor recommended is

Screw
Reciprocating
Centrifugal
Rotating

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Refrigeration and Air Conditioning
The wet bulb temperature during sensible heating of air

Decreases
Remains constant
None of these
Increases

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Refrigeration and Air Conditioning
During cooling and dehumidification, dry bulb temperature

Remains constant
Decreases
None of these
Increases

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Refrigeration and Air Conditioning
In vapour compression cycle the condition of refrigerant is superheated vapour

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

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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

Zero
20
50
100

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MORE MCQ ON Refrigeration and Air Conditioning

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