A. 4.3 m
B. 5.5 m
C. 7.0 m
D. 10.5 m
Related Mcqs:
- The spacing between phase conductors of a 220 kV line is approximately equal to________________?
A. 2 m
B. 3.5 m
C. 6 m
D. 8.5 m - 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. Kelvin’s law
B. Ohm’s law
C. Kirchhoffs law
D. Faraday’s law
E. none of the above - Which of the following characteristics should the line supports for transmission lines possess?
A. Low cost
B. High mechanical strength
C. Longer life
D. All of the above - The current drawn by the line due to corona losses is___________?
A. non-sinusoidal
B. sinusoidal
C. triangular
D. square - 310 km line is considered as_______________?
A. a long line
B. a medium line
C. a short line
D. any of the above - 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 square root of the ratio of line impedance and shunt admittance is called the___________?
A. surge impedance of the line
B. conductance of the line
C. regulation of the line
D. none of the above - For an overhead line, the surge impedance is taken as________________?
A. 20-30 ohms
B. 70—80 ohms
C. 100—200 ohms
D. 500—1000 ohms
E. none of the above - In AC.S.R. conductors, the insulation between aluminium and steel conductors is_________?
A. insulin
B. bitumen
C. varnish
D. no insulation is required - The angular displacement between two interconnected stations is mainly due to___________?
A. armature reactance of both alternators
B. reactance of the interconnector
C. synchronous reactance of both the alternators
D. all of the above
