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Power Systems

Power Systems
If sparsity of a 5 bus transmission line is 0.4. Find the number of transmission lines?

 6
 3
 5
 4

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Power Systems
For n bus power system size of Y bus matrix is

 n×n
 (n-2)×(n-2)
 (n-1)×(n-2)
 (n-1)×(n-1)

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Power Systems
The conductor of a 10 Km long single phase, two wire line are separated by a distance of 1.5 m the diameter of each conductor the inductance of the circuit is

  23.8 mH.
 23.33 mH.
 21.2 mH.
 25.8 mH.

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Power Systems
A power station supplies the peak load of 50 MW, 40 MW and 70 MW to three localities. The annual load factor is 0.50 p.u. and the diversity factor of the load at the station is 1.55 the maximum demand on the station and average load respectively will be

 53 MW.
 57.5 MW.
  51.61 MW.
 52 MW.

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Power Systems
A moderator material should have

  small atomic mass.
None of these
 large atomic mass.
 may be any of the above.

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Power Systems
If in a line, resistance and reactance are found to be equal and regulation is zero, then load will have

 0.707 leading power factor
 unity power factor
 zero power factor
 0.707 lagging power factor

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