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Power Systems

Power Systems
If sag in an overhead line increase, tension in the line

 decrease
 remains same
None of these
 increase

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Power Systems
Cheapest plant in operation and maintenance is

  nuclear.
  hydroelectric.
  steam power.
  diesel power.

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Power Systems
Operator "a" rotates a vector

 either 1 or 2
 clock wise direction
 anti clock wise direction
 nether 1 nor 2

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Power Systems
Which of following power plants will take long period in erection and installation

 Gas turbine.
 Thermal.
 Hydro Power Plant
 Nuclear.

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

 Otto cycle.
 Carnot cycle.
  Rankine cycle.
 Bell - Coleman cycle.

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Power Systems
A hydro power plant of run off river type should be provided with pondage so that the

  firm capacity of plant is increased.
 pressure inside the turbine casing remains.
 kinetic energy of the running water is fully utilized.
 operating head is controlled.

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