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Refrigeration and Air Conditioning

Refrigeration and Air Conditioning
Most air cooled condensers are designed to operate with a temperature difference of

22°C
5°C
14°C
8°C

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Refrigeration and Air Conditioning
The COP of a domestic refrigerator

Depends upon the make
Is less than 1
Is more than 1
Is equal to 1

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Refrigeration and Air Conditioning
In vapour compression cycle, the condition of refrigerant is very wet vapour

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

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Refrigeration and Air Conditioning
The mass of water vapour present in __________ is called absolute humidity.

1 kg of dry air
1 m3 of dry air
1 m3 of water
1 kg of wet air

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Refrigeration and Air Conditioning
The operating temperature of a cold storage is -2°C. The heat leakage from the surrounding is 30 kW for the ambient temperature of 40°C. The actual C.O.P. of refrigeration plant used is one fourth that of ideal plant working between the same temperatures. The power required to drive the plant is

1.86 kW
3.72 kW
18.6 kW
7.44 kW

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Refrigeration and Air Conditioning
The refrigerant for a refrigerator should have

High sensible heat
High total heat
Low latent heat
High latent heat

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MORE MCQ ON Refrigeration and Air Conditioning

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