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Refrigeration and Air Conditioning

Refrigeration and Air Conditioning
Freon group of refrigerants are

Inflammable
Non-inflammable and toxic
Toxic
Nontoxic and non-inflammable

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Refrigeration and Air Conditioning
Rating of a domestic refrigerator is of the order of

40 tons
0.1 ton
5 tons
10 tons

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Refrigeration and Air Conditioning
The material of pipe lines for a system using Freon as a refrigerant should be

Brass
Steel
Copper
Aluminium

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Refrigeration and Air Conditioning
In chemical dehumidification process,

Wet bulb temperature decreases
Dry bulb temperature increases
All of these
Dew point temperature decreases

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Refrigeration and Air Conditioning
In vapour compression cycle, the condition of refrigerant is saturated liquid

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

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Refrigeration and Air Conditioning
A refrigeration cycle operates between condenser temperature of + 27°C and evaporator temperature of -23°C. The Carnot coefficient of performance of cycle will be

1.2
0.2
5
6

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MORE MCQ ON Refrigeration and Air Conditioning

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