Power Systems
A 3 - Φ, 33 kV oil circuit breaker is rated 1200 A, 2000 MVA, 3 s. The symmetrical breaking current is

 104.8 kA.
  35 kA.
 3600 A.
 1200 A.

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Power Systems
An impulse turbine

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

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