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Power Systems

Power Systems
If all the sequence voltages at the fault point in a power system are equal, then the fault point is a

 LLG
 LLL
 LL
 LG

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Power Systems
A cable has the following characteristics, L = 0.201 µH/m and C = 196.2 pF/m. The velocity of wave propagation through cable is

 159.24 m/µs
 32 m/s
 159.24 m/s
 0.0312 m/s

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Power Systems
Cheapest plant in operation and maintenance is

  hydroelectric.
  diesel power.
  nuclear.
  steam power.

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Power Systems
Storage requirement can be determined from

 hydro-graph.
 mass Curve.
  both B and C.
 flow duration curve.

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Power Systems
Advantage/s of per unit system as compare to absolute system?

All of these
 only one equation is required
 memory required is less
 calculation time is less

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Power Systems
More efficient plants are used as

 peak load plant
 both 1 and 2
None of these
 base load plant

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