Power Systems
In a Gauss Seidel load flow method, the number of iterations may be reduced if the correction in voltage at each bus is multiplied by

 Acceleration factor
 Lagrange multiplier
 Blocking factor
 Gauss constant

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Power Systems
An impulse turbine

 is most suited for low head and high discharge power plants.
 makes use of a draft tube.
  operates by initial complete conversion to kinetic energy.
 always operates submerged.

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