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Power Systems

Power Systems
Find the value of a729, where "a" is the operator

 1
 0
 α
 α²

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Power Systems
A 200 MW capacity generator has a speed regulation of 4% for a frequency drop of 0.05 Hz. Find the power input supplied by the turbine for maintaining constant frequency?

 20 MW
 15 MW
 5 MW
 10 MW

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Power Systems
Reflector of a nuclear reactor are made up of

  boron.
 steel.
  beryllium.
 cast iron.

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Power Systems
As the frequency of the system is increased, the charging MVAR

 decreases
 remains unaffected
None of these
 increases

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

 Bell-Coleman cycle
 Carnot cycle
 Otto cycle
 Rankine cycle

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Power Systems
The most suitable circuit breaker for short line fault without switching resistor is

 none of these.
 air blast circuit breaker.
  SF6 breaker.
 oil circuit breaker.

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