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Power Systems

Power Systems
Normally Z bus matrix is a

 null matrix
 full matrix
 sparse matrix
 unit matrix

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Power Systems
A thermal protection relay provides protection against what?

 Short circuit
 Over load
 Temperature
 any of the above

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Power Systems
On which one of the following cycles does a modern steam power plant work?

 Bell-Coleman cycle
 Otto cycle
 Carnot cycle
 Rankine cycle

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Power Systems
Keeping in view the cost and overall effectiveness, the following circuit breaker is suited for capacitor bank switching

  vacuum.
  SF6.
  air blast.
  oil.

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Power Systems
For large plants of capacity for more than 15 MW, what type of cooling is used

  Air.
  Liquid.
  Water.
  Hydrogen.

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Power Systems
In a 4 bus,4×4 Y bus matrix the number of non zero elements are 12. Find the number of transmission lines?

 4
 5
 2
 8

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