The C.O.P. of a refrigerator working on a reversed Carnot cycle is (where T1 = Lowest absolute temperature, and T2 = Highest absolute temperature)

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ME Set-1
Heat Transfer Refrigeration and Air Conditioning
349

Heat Transfer Refrigeration and Air Conditioning MCQ with Answers

349) The C.O.P. of a refrigerator working on a reversed Carnot cycle is (where T₁ = Lowest absolute temperature, and T₂ = Highest absolute temperature)

(T1)/(T2-T1)

(T2-T1)/(T1)

(T1-T2)/(T1)

(T2)/(T2-T1)

Answer is:

(T1)/(T2-T1)

Heat Transfer Refrigeration and Air Conditioning MCQ with Answers

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Related Heat Transfer Refrigeration and Air Conditioning MCQ with Answers

350) A refrigerant compressor is used to

raise the pressure of the refrigerant

raise the temperature of the refrigerant

circulate the refrigerant through the refrigerating system

all of the above

Answer is:

all of the above

351) In which of the following refrigeration system, waste heat can be effectively used?

Vapour compression cycle

Vapour absorption cycle

Air refrigeration cycle

none of these

Answer is:

Vapour absorption cycle

352) During heating and humidification, the final relative humidity of air

is higher than that of the entering air

is lower than that of the entering air

can be lower or higher than that of the entering air

none of the above

Answer is:

can be lower or higher than that of the entering air

353) The fluids used in electrolux refrigerator are

water and hydrogen

ammonia and hydrogen

ammonia, water and hydrogen

none of these

Answer is:

ammonia, water and hydrogen

Heat Transfer Refrigeration and Air Conditioning MCQ with Answers

For more MCQ's Click Here

349) The C.O.P. of a refrigerator working on a reversed Carnot cycle is (where T1 = Lowest absolute temperature, and T2 = Highest absolute temperature)

(T1)/(T2-T1)

Heat Transfer Refrigeration and Air Conditioning MCQ with Answers

Related Heat Transfer Refrigeration and Air Conditioning MCQ with Answers

350) A refrigerant compressor is used to

all of the above

351) In which of the following refrigeration system, waste heat can be effectively used?

Vapour absorption cycle

352) During heating and humidification, the final relative humidity of air

can be lower or higher than that of the entering air

353) The fluids used in electrolux refrigerator are

ammonia, water and hydrogen

Heat Transfer Refrigeration and Air Conditioning MCQ with Answers

349) The C.O.P. of a refrigerator working on a reversed Carnot cycle is (where T₁ = Lowest absolute temperature, and T₂ = Highest absolute temperature)