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Refrigeration and Air Conditioning

Refrigeration and Air Conditioning
An important characteristic of absorption system of refrigeration is

cooling below 0°C
quiet operation
noisy operation
very little power consumption

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Refrigeration and Air Conditioning
During heating and dehumidification process, dry bulb temperature

None of these
Decreases
Remains constant
Increases

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Refrigeration and Air Conditioning
An evaporator is also known as

Freezing coil
Cooling coil
All of these
Chilling coil

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Refrigeration and Air Conditioning
The condensing pressure due to the presence of non-condensable gases, as compared to that actually required for condensing temperatures without non-condensable gases,

May be higher or lower depending upon the nature of non-condensable gases
Will remain unaffected
Will be lower
Will be higher

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Refrigeration and Air Conditioning
The atmospheric air at dry bulb temperature of 15°C enters a heating coil maintained at 40°C. The air leaves the heating coil at 25°C. The bypass factor of the heating coil is

0.6
0.4
0.376
0.67

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

None of these
Remains constant
Increases
Decreases

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MORE MCQ ON Refrigeration and Air Conditioning

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