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 above
The material commonly used for sheaths of underground cables is______________?
A. lead
B. rubber
C. copper
D. iron
When a live conductor of public electric supply breaks down and touches the earth which of the following will happen?
A. Current will flow to earth
B. Supply voltage will drop
C. Supply voltage will increase
D. No current will flow in the conductor
E. None of the above
310 km line is considered as_______________?
A. a long line
B. a medium line
C. a short line
D. any of the above
In a tap changing transformer, the tapgs are provided on__________?
A. primary winding
B. secondary winding
C. high voltage winding
D. any of the above
The distributors for residential areas are______________?
A. single phase
B. three-phase three wire
C. three-phase four wire
D. none of the above
The steel used in steel cored conductors is usually__________?
A. alloy steel
B. stainless steel
C. mild steel
D. high speed steel
E. all of the above