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Refrigeration and Air Conditioning

Refrigeration and Air Conditioning
The capacity of a domestic refrigerator is in the range of

0.1 to 0.3 TR
1 to 3 TR
3 to 5 TR
5 to 7 TR

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Refrigeration and Air Conditioning
The coefficient of performance (C.O.P.) of a refrigerator working as a heat pump is given by

O.P)P = (
O.P.)R + 2
O.P)R
(
O.P.)P = (
O.P)R - 1
O.P)P = (
O.P.)P = (
(
O.P.)R + 1
(
(

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Refrigeration and Air Conditioning
In a vapour absorption refrigeration system, the compressor of the vapour compression system is replaced by

Liquid pump
Absorber and generator
Generator
Absorber, generator and liquid pump

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

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

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Refrigeration and Air Conditioning
A standard ice point temperature corresponds to the temperature of

Solid and dry ice
Ice at 4°C
Water at 0°C
Mixture of ice and water under equilibrium conditions

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Refrigeration and Air Conditioning
Which of the following refrigerant is highly toxic and flammable?

Ammonia
R-12
Carbon dioxide
Sulphur dioxide

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MORE MCQ ON Refrigeration and Air Conditioning

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