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Refrigeration and Air Conditioning

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

Sulphur sticks
All of these
Halide torch
Soap and water

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

Sulphur dioxide
R-12
Carbon dioxide
Ammonia

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Refrigeration and Air Conditioning
Vapour compression refrigeration is somewhat like

Carnot cycle
Reversed Carnot cycle
None of these

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Refrigeration and Air Conditioning
For evaporators and condensers, for the given conditions, the logarithmic mean temperature difference (tm) for parallel flow is ________ that for counter flow.

Equal to
None of these
Less than
Greater than

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Refrigeration and Air Conditioning
In order to collect liquid refrigerant and to prevent it from going to a ________, a device known as accumulator is used at the suction of compressor.

Expansion valve
Condenser
Compressor
Evaporator

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Refrigeration and Air Conditioning
Air refrigeration operates on

Brayton cycle
Carnot cycle
Reversed Carnot cycle
Rankine’s cycle

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MORE MCQ ON Refrigeration and Air Conditioning

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