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Refrigeration and Air Conditioning

Refrigeration and Air Conditioning
Carbon dioxide is

All of the listed here
Odourless
Non-flammable
Colourless

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Refrigeration and Air Conditioning
Air refrigeration operates on

Rankine’s cycle
Carnot cycle
Brayton cycle
Reversed Carnot cycle

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Refrigeration and Air Conditioning
The formation of frost on cooling coils in a refrigerator

Reduces power consumption
Improves C.O.P. of the system
Increases heat transfer
Increases power consumption

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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
Evaporator
Compressor
Condenser

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Refrigeration and Air Conditioning
The wet bulb temperature at 100% relative humidity is___ dry bulb temperature.

Same as
None of the listed here
Higher than
Lower than

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Refrigeration and Air Conditioning
Absorption system normally uses the following refrigerant

CO2
Freon-11
Ammonia
Freon-22

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MORE MCQ ON Refrigeration and Air Conditioning

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