The coefficient of performance of Electrolux refrigerator is the ratio of

A Heat supplied by the gas burner to the heat absorbed by the evaporator
B Heat absorbed by the evaporator to the heat supplied by the gas burner
C Heat supplied by the gas burner minus the heat absorbed by the evaporator to the heat supplied by the gas burner
D Heat absorbed by the evaporator minus the heat supplied by the gas burner to the heat absorbed by the evaporator

Correct Answer: Heat absorbed by the evaporator to the heat supplied by the gas burner

The coefficient of performance of Electrolux refrigerator is the ratio of Heat absorbed by the evaporator to the heat supplied by the gas burner
Bissoy MCQ
#Mechanical Engineering #Refrigeration and Air Conditioning

Related Questions

An Electrolux refrigerator is called a _________ absorption system.
A Single fluid
B Two fluids
C Three fluids
D None of these
In Electrolux refrigerator
A Ammonia is absorbed in hydrogen
B Ammonia is absorbed in water
C Ammonia evaporates in hydrogen
D Hydrogen evaporates in ammonia
One fourth the price of a TV is equal to 1/6th the price of a refrigerator. If the total cost of the TV and the refrigerator is Tk 60000, what is the price of the TV?
A Tk 22000
B Tk 24000
C Tk 27500
D None of these
The coefficient of performance of a domestic refrigerator is ________ as compared to a domestic air-conditioner.
A Same
B Less
C More
D None of these
The coefficient of performance (C.O.P.) of a refrigerator working as a heat pump is given by
A (C.O.P.)P = (C.O.P.)R + 2
B (C.O.P.)P = (C.O.P.)R + 1
C (C.O.P.)P = (C.O.P.)R - 1
D (C.O.P.)P = (C.O.P.)R
Hydrogen is used in Electrolux refrigeration system so as to _________ the rate of evaporation of the liquid ammonia passing through the evaporator.
A Equalize
B Reduce
C Increase
D None of these
Co-efficient of Performance (COP) of a refrigerator is the ratio of the
A Work required to refrigeration obtained
B Refrigeration obtained to the work required
C Lower to higher temperature
D Higher to lower temperature
The Carnot co-efficient of performance (COP) of a domestic air conditioner compared to a household refrigerator is
A Less
B More
C Same
D Dependent on climatic conditions
The ratio of heat extracted in the refrigerator to the work-done on the refrigerant is called
A Coefficient of performance of refrigeration
B Coefficient of performance of heat pump
C Relative coefficient of performance
D Refrigerating efficiency
The C.O.P for reverse Carnot refrigerator is 2. The ratio of lowest temperature to highest temperature will be
A twice
B half
C four times
D three times

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