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This is an MCQ-based quiz on the topic of Refrigeration Cycles
This includes the following:-
Reversed Heat Engine
Vapor Compression Refrigeration Cycle-1
Vapor Compression Refrigeration Cycle-2
Absorption Refrigeration Cycle
Heat Pump System
For a heat pump, coefficient of performance is given by (Q1 is the heat taken from low temperature region and Q2 is the heat given to high temperature region)
For a regenerator, coefficient of performance is given by (Q1 is the heat taken from low temperature region and Q2 is the heat given to high temperature region)
For a heat pump, coefficient of performance is given by (T1 is the temperature of heat rejection and T2 is the temperature of heat absorption)
For a regenerator, coefficient of performance is given by (T1 is the temperature of heat rejection and T2 is the temperature of heat absorption)
Types of compressor include
Reciprocating
Centrifugal
Rotary
All of the mentioned
Capillary tubes are used in ____
Small units
Larger units
Both of the mentioned
None of the mentioned
For an expansion device, which of the following is true?
It increases the pressure of refrigerant
It regulates the flow of refrigerant to evaporator
Both of the mentioned
None of the mentioned
Which of the following is a type of expansion device?
Capillary tubes
Throttle valves
Both of the mentioned
None of the mentioned
For the same T1 and T2, COP increases with ____ in temperature difference.
Increase
Decrease
No change
None of the mentioned
Which of the following happens in a reversed Carnot cycle?
The refrigerant is compressed reversibly and adiabatically
It is condensed reversibly
It expands reversibly and adiabatically
All of the mentioned
The working fluid in a refrigeration cycle is known as refrigerant.
True
False
Which of the following is a reversed heat engine cycle?
Heat pump cycle
Refrigeration cycle
Both of the mentioned
None of the mentioned
A reversed heat engine
Receives heat from a low temperature region
Gives heat to a high temperature region
Receives a net inflow of work
All of the mentioned
Dry ice is suitable for ____ temperature refrigeration.
High
Low
All range of
None of the mentioned
Refrigeration is the cooling of any system below its surroundings temperature.
True
False
