310 km line is considered as_______________?

Related Mcqs:

1. 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

2. The current drawn by the line due to corona losses is___________?

   A. non-sinusoidal
   B. sinusoidal
   C. triangular
   D. square

3. 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

4. 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

5. The minimum clearance between the ground and a 220 kV line is about_________________?

   A. 4.3 m
   B. 5.5 m
   C. 7.0 m
   D. 10.5 m

6. 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

7. 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

8. For which of the following equipment current rating is not necessary?

   A. Circuit breakers
   B. Isolators
   C. Load break switch
   D. Circuit breakers and load break switches

9. Overhead system can be designed for operation up to____________?

   A. 11 kV
   B. 33 kV
   C. 66 kV
   D. 400 kV

   Updated by: The Perfectionist

10. The power factor of industrial loads is generally______________?

    A. unity
    B. lagging
    C. leading
    D. zero