A. surge impedance of the line
B. conductance of the line
C. regulation of the line
D. none of the above
1
The phenomenon qf rise in voltage at the receiving end of the open-circuited or lightly loaded line is called the________________?
0
310 km line is considered as_______________?
A. Seeback effect
B. Ferranti effect
C. Raman effect
D. none of the above
0
Which of the following are the constants of the transmission lines ?
A. a long line
B. a medium line
C. a short line
D. any of the above
0
The corona is considerably affected by which of the following _______________?
A. Resistance
B. Inductance
C. Capacitance
D. All of the above
0
The usual spans with R.C.C. poles are_______________?
A. Size of the conductor
B. Shape of the conductor
C. Surface condition of the conductor
D. All of the above
0
Galvanised steel wire is generally used as______________?
A. 40—50 meters
B. 60—100 meters
C. 80—100 meters
D. 300—500 meters
0
Which of the following materials is not used for transmission and distribution of electrical power________________?
A. stay wire
B. earth wire
C. structural components
D. all of the above
0
The wooden poles well impregnated with creosite oil or any preservative compound have life_____________?
A. Copper
B. Aluminium
C. Steel
D. Tungsten
0
If variable part of annual cost on account of interest and depreciation on the capital outlay is equal to the annual cost of electrical energy wasted in the conductors, the total annual cost will be minimum and the corresponding size of conductor will be most economical. This statement is known as___________________?
A. from 2 to 5 years
B. 10 to 15 years
C. 25 to 30 years
D. 60 to 70 years
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