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Power Systems

Power Systems
The Y bus matrix of 100 bus interconnected system is 90% sparse. Hence the number of transmission lines in the system must be

 900
 450
 250
 500

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Power Systems
In hydro power stations what is an enlarged body of water just above the intake and used as a regulating reservoir called

 Spillways.
 Penstock.
 Reservoir.
  Fore bay.

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Power Systems
When bundle conductor are used in place of single conductor the effective inductance and capacitance will respectively

 decrease and remain unaffected.
  decrease and increase.
 increase and remain unaffected.
 increase and decrease.

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Power Systems
Isolator in sub station is open under ------------- condition?

 short circuit
 no load
 full load
 any of the above

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Power Systems
In nuclear chain fission reaction each neutron causing fission produces

 one new neutron.
  at least one new neutron.
 no new neutron.
 less than one new neutron.

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Power Systems
Reflection coefficient of voltage is Rv

 2Zl/(Zs + Zl)
 2Zs/(Zs + Zl)
 (Zs - Zl)/(Zs + Zl)
 (Zl - Zs)/(Zs + Zl)

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