Steel rail poles of height 13 meters are used for transmission purpose of _________ voltage.
A. 33 kV
B. 11 kV
C. 22 kV
D. Both a and b
Answer:A
Steel rail poles of height 13 meters are used for transmission purpose of _________ voltage.
A. 33 kV B. 11 kV C. 22 kV D. Both a and b