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Refrigeration and Air Conditioning

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
6
5
0.2

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

Equal to
None of the listed here
Greater than
Less than

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Refrigeration and Air Conditioning
A condenser of refrigeration system rejects heat at the rate of 120 kW, while its compressor consumes a power of 30 kW. The coefficient of performance of the system will be

43833
3
4
43834

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Refrigeration and Air Conditioning
On the pressure-enthalpy diagram, condensation and desuperheating is represented by a horizontal line because the process

Involves no change in volume
Takes place at constant entropy
Takes place at constant temperature
Takes place at constant pressure

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Refrigeration and Air Conditioning
Efficiency of a Carnot engine is given as 80%. If the cycle direction be reversed, what will be the value of C.O.P. of reversed Carnot Cycle?

1.25
0.5
0.25
0.8

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Refrigeration and Air Conditioning
In a refrigeration system, the expansion device is connected between the

Condenser and receiver
Evaporator and compressor
Compressor and condenser
Receiver and evaporator

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MORE MCQ ON Refrigeration and Air Conditioning

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