A. 400 V
B. 11 kV
C. 66 kV
D. 400 kV
By which of the following systems electric power may be transmitted ?
A. Overhead system
B. Underground system
C. Both A. and (b)
D. None of the above
The wooden poles well impregnated with creosite oil or any preservative compound have life_____________?
A. from 2 to 5 years
B. 10 to 15 years
C. 25 to 30 years
D. 60 to 70 years
A booster is a_________________?
A. series wound generator
B. shunt wound generator
C. synchronous generator
D. none of the above
The usual spans with R.C.C. poles are_______________?
A. 40—50 meters
B. 60—100 meters
C. 80—100 meters
D. 300—500 meters
For transmission of power over a distance of 200 km, the transmission voltage should be_________kv?
A. 132 kV
B. 66 kV
C. 33 kV
D. 11 kV
Constant voltage transmission entails the following disadvantage?
A. large conductor area is required for same power transmission
B. short-circuit current of the system is increased
C. either of the above
D. none of the above