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Refrigeration and Air Conditioning

Refrigeration and Air Conditioning
The leakage in a refrigeration system using Freon is detected by

Soap and water
Halide torch
All of these
Sulphur sticks

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Refrigeration and Air Conditioning
For large tonnage (more than 200 TR) air-conditioning applications, the compressor recommended is

Rotating
Centrifugal
Screw
Reciprocating

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Refrigeration and Air Conditioning
If a heat pump cycle operates between the condenser temperature of +27°C and evaporator temperature of -23°C, then the Carnot COP will be

1.2
0.2
5
6

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Refrigeration and Air Conditioning
For obtaining high COP, the pressure range of compressor should be

Any value
Optimum
Low
High

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Refrigeration and Air Conditioning
The dehumidification process, on the psychrometric chart, is shown by

Horizontal line
Inclined line
Vertical line
Curved line

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Refrigeration and Air Conditioning
Air refrigeration operates on

Rankine’s cycle
Reversed Carnot cycle
Carnot cycle
Brayton cycle

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MORE MCQ ON Refrigeration and Air Conditioning

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