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Power Systems

Power Systems
A 4 bus power system consists of 4 transmission lines, then find the sparsity of Y bus matrix?

 0.25
 0.5
 0.4
 0.75

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Power Systems
Find the relation between sub transient (X"), transient (X') and synchronous reactance (X) ?

 X" > X' >X
 X" < X' > X
 X" < X' < X
 X" > X' < X

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Power Systems
In a 400 KV network, 360 KV is recorded at a 400 KV bus. The reactive power absorbed by shunt rated for 50 MVAr, 400 KV connected at the bus is

 61.73 MVAr.
 55.56 MVAr.
  40.5 MVAr.
 45 MVAr.

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Power Systems
A power generating station has a maximum demand of 1000 MW. The annual load factor is 75% and plant capacity factor is 60%. Calculate the reserve capacity?

 750 MW
 250 MW
 500 MW
 1250 MW

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Power Systems
In what from the initial energy will be released for the 200 MeV per fission by a neutron in a slow thermal nuclear reactor

 heat energy.
 electromagnetic radiations.
  kinetic energy of particles and electromagnetic radiation.
 kinetic energy and sound energy.

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Power Systems
The overall efficiency of a steam power plant equal to

 binary vapor cycle.
  product of boiler efficiency, turbine efficiency and generator efficiency.
 the Rankine cycle.
 regenerative cycle.

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