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Refrigeration and Air Conditioning

Refrigeration and Air Conditioning
A vapour absorption refrigeration system

Requires little power consumption
Gives quiet operation
Gives noisy operation
Cools below 0°C

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Refrigeration and Air Conditioning
In Electrolux refrigerator

Ammonia evaporates in hydrogen
Hydrogen evaporates in ammonia
Ammonia is absorbed in water
Ammonia is absorbed in hydrogen

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Refrigeration and Air Conditioning
The horizontal and non-uniformly spaced lines on a psychrometric chart indicates

Dry bulb temperature
Specific humidity
Wet bulb temperature
Dew point temperature

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Refrigeration and Air Conditioning
The refrigeration effect in a dry evaporator compared to flooded evaporator in a similar plant is

More
More or less depending on ambient conditions
Same
Less

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

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

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Refrigeration and Air Conditioning
Accumulators should have adequate volume to store refrigerant charge at least

0.25
0.5
0.75
0.1

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MORE MCQ ON Refrigeration and Air Conditioning

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