Which of the following distribution systems is more reliable?
Which of the following distribution systems is more reliable?
A. Radial system
B. Tree system
C. Ring main system
D. All are equally reliable
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Which of the following materials is used for overhead transmission lines ?
Which of the following materials is used for overhead transmission lines ?
A. Steel cored aluminium
B. Galvanised steel
C. Cadmium copper
D. Any of the aboveAluminium has a specific gravity of___________?
Aluminium has a specific gravity of___________?
A. 1.5
B. 2.7
C. 4.2
D. 7.8The operating voltage of high voltage cables is up to_______________?
The operating voltage of high voltage cables is up to_______________?
A. l.lkV
B. 3.3kV
C. 6.6kV
D. llkVPin type insulators are generally not used for voltages beyond_________?
type insulators are generally not used for voltages beyond_________?
A. 1 kV
B. 11 kV
C. 22 kV
D. 33 kVThe phenomenon qf rise in voltage at the receiving end of the open-circuited or lightly loaded line is called the________________?
The phenomenon qf rise in voltage at the receiving end of the open-circuited or lightly loaded line is called the________________?
A. Seeback effect
B. Ferranti effect
C. Raman effect
D. none of the aboveThe power factor of industrial loads is generally______________?
The power factor of industrial loads is generally______________?
A. unity
B. lagging
C. leading
D. zero