Related Questions

The Carnot co-efficient of performance (COP) of a domestic air conditioner compared to a household refrigerator is
ক Less
খ More
গ Same
ঘ Dependent on climatic conditions
The co-efficient of performance (COP) of a refrigerating system, which is its index of performance, is defined as the ratio of useful refrigeration to the net work. The units of __________ and COP are the same.
ক Kinematic viscosity
খ Work
গ Temperature
ঘ None of these
COP-26 কোথায় অনুষ্ঠিত হবে ? (Where will COP-26 be held?)
ক Canada
খ France
গ Netherland
ঘ Scottland
COP-26 এ COP মানে কী?
ক কনফারেন্স অব দ্য প্যারিস
খ কনফারেন্স অব দ্য পাওয়ার
গ কনফারেন্স অব দ্য পার্টিস
ঘ কনফারেন্স অব দ্য প্রটোকল
Co-efficient of Performance (COP) of a refrigerator is the ratio of the
ক Work required to refrigeration obtained
খ Refrigeration obtained to the work required
গ Lower to higher temperature
ঘ Higher to lower temperature
The COP of a domestic refrigerator
ক Is less than 1
খ Is more than 1
গ Is equal to 1
ঘ Depends upon the make
In a working refrigerator, the value of COP is always
ক 0
খ > 1
If both Stirling and Carnot cycles operate within the same temperature limits, then efficiency of Stirling cycle as compared to Carnot cycle
ক More
খ Less
গ Equal
ঘ Depends on other factors
The C.O.P. of a Carnot refrigerator in winter will be _________ as compared to C.O.P. in summer.
ক Same
খ Lower
গ Higher
ঘ None of these
The average marks of a student in 10 parers are 80. If the highest and the lowest scores are not considered, the average is 81 . If his highest score is 92. find the lowest.
ক 55
খ 60
গ 62
ঘ None of these

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