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Power Systems

Power Systems
Which of following materials can be used as coolant

 Heavy water.
  Any of above.
 Helium.
 CO2.

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Power Systems
For variable heads of near about but less than 30 m, which type of turbines is used hydro power plant

 None of above.
 Pelton.
 Francis.
  Kaplan.

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Power Systems
The essential requirement(s) for power plants to be operated as peak load plants are

 Low capital cost.
 Quick response to load variation.
All of these
 Capability of quick starts.

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Power Systems
The radiation shield for a nuclear power reactor for biological safety is provided by having the reactor

 isolated from outside word with strong magnetic field.
 encased thick metal wall.
 immersed in water pool.
  encased by thick concrete wall.

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Power Systems
Galvanised steel is generally used as

 structural components.
 stray wire.
All of these
 earth wire.

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Power Systems
Which of the following method is/are more reliable?

 Gauss-Siedel (GS) method
 Fast Decoupled Load Flow (FDLF) method
All of these
 Newton Raphson (NR) method

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