Related Questions

In an iron cored coil the iron core is removed so that the coil becomes an air cored coil. The inductance of the coil will
A Increase
B Decrease
C Remain the same
D Initially increase and then decrease
In AC.S.R. Conductors, the insulation between aluminium and steel conductors is
A Insulin
B Bitumen
C Varnish
D No insulation is required
When a hole or cavity to be cored is not in line with the parting surface, then a ________ is used.
A Horizontal core
B Vertical core
C Drop core
D Balanced core
The effective resistance of an iron-cored choke working on ordinary supply frequency is more than its true resistance because of
A Iron loss in core
B Skin effect
C Increase in temperature
D Capacitive effect between adjacent coil turns
The size of air cored transducers in comparison to the iron core parts is
A Smaller
B Larger
C Same
D Unpredictable
A survey was conducted among the students of Khulna University to find out how many forms of physical exercise usually swam, 25% said they usually did jogging, 20% said they played cricket, 15% said they usually played football and 20 respondents said they did not take any form of exercise. From the above findings it can be concluded that.
A The student of khulna University do not usually take physical exercise.
B No respondent took more than one form of exercise.
C The method of data collection was not valid.
D Some of the respondents took more than one form of exercise.
In aluminium conductors, steel core is provided to
A Compensate for skin effect
B Neutralise proximity effect
C Reduce line inductance
D Increase the tensile strength
Stainless steel is usually made by alloying the steel with
A Copper and nickel
B Copper and chromium
C Chromium and nickel
D Manganese and copper
The cylindrical windings using circular conductors are used for current rating of
A upto 20 A
B upto 40 A
C upto 60 A
D upto 80 A
A steel mill produces 180 tons of steel per month Raw materials cost for each ton of production is Tk. 1200. Other expenses of that mill are Tk. 90,000 in each month what should be the selling price of each ton of steel in order to make 10% profit?
A 1870
B 1845
C 1842
D 18145

Next steps