Related Questions

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
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 (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
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
In a domestic vapour compression refrigerator, the refrigerant commonly used is
A CO2
B Ammonia
C R-12
D All of these
The bank of tubes at the back of domestic refrigerator is
A Condenser tubes
B Evaporator tubes
C Refrigerant cooling tubes
D Capillary tubes
Domestic refrigerator usually works on the __________ refrigeration cycle.
A Carnot
B Air
C Absorption
D Vapour-ejection
The common refrigerant in domestic refrigerator is
A Neon
B Oxygen
C Nitrogen
D Freon
In a domestic refrigerator, a capillary tube controls the flow of refrigerant from the
A Expansion valve to the evaporator
B Evaporator to the thermostat
C Condenser to the expansion valve
D Condenser to the evaporator
The capacity of a domestic refrigerator is in the range of
A 0.1 to 0.3 TR
B 1 to 3 TR
C 3 to 5 TR
D 5 to 7 TR

Next steps