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Refrigeration and Air Conditioning

Refrigeration and Air Conditioning
Chaperon equation is applicable for registration at

Triple point
Sublimation temperature
Saturation point of liquid
Saturation point of vapour

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Refrigeration and Air Conditioning
The boiling point of ammonia is

-10.5°C
-33.3°C
-30°C
-77.7°C

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Refrigeration and Air Conditioning
When the temperature of the surrounding is higher than the temperature of the body, then the heat loss by convection from the body to the surrounding will be

Positive
Negative
Zero
None of the listed here

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Refrigeration and Air Conditioning
At lower temperatures and pressures, the latent heat of vaporisation of a refrigerant

decreases
increases
remains same
depends on other factors

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Refrigeration and Air Conditioning
The coefficient of performance of Heat Pump is always ___ one.

Less than
Equal to
None of the listed here
Greater than

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Refrigeration and Air Conditioning
An Electrolux refrigerator is called a ___ absorption system.

None of the listed here
Two fluids
Single fluid
Three fluids

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