☰ Transmission and Distribution of Electrical Power (Electrical Engineering) - MCQs

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Q13.

Proximity of line to earth surface

  • A. does not affect its capacitance to neutral
  • B. increases the capacitance to neutral
  • C. decreases the capacitance to neutral
  • D. none of the above
    ✍ Discuss    
Q14.

Capacitance in equivalent circuit of a transmission line is due to

  • A. current in the line
  • B. difference in potential of line
  • C. leakage of current
  • D. presence of magnetic flux
    ✍ Discuss    
Q15.

Bundled conductors in EHV transmission system provide

  • A. reduce capacitance
  • B. increased capacitance
  • C. increased inductance
  • D. increase voltage gradient
    ✍ Discuss    
Q16.

In order to reduce the skin effect at UHF

  • A. copper tubes with silver plating are used
  • B. copper rods with silver plating are used
  • C. anodised conductor are used
  • D. painted conductors are used
    ✍ Discuss    
Q17.

The skin effect of a conductor reduces with the increase in

  • A. supply frequency
  • B. resistivity of the conductor material
  • C. X section of conductor
  • D. permeability of conductor material
    ✍ Discuss    
Q18.

Skin effect exists in

  • A. cable carrying DC current
  • B. DC transmission line only
  • C. AC transmission line only
  • D. DC as well as AC transmission lines
    ✍ Discuss    
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