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Power Systems

Power Systems
Find the propagation constant, if impedance is 10Ω and admittance is 10 â„§?

 5
 100
 1
 10

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Power Systems
The area under a flow duration curve represents

  total quantity of run-off during that period.
 maximum rate of run-off during the period.
 total of units of energy available.
 total power available.

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Power Systems
Mho relays are used for the protection of which of the following lines?

 medium transmission lines only
None of these
 short transmission lines only
 long transmission lines only

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

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

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Power Systems
Critical visual voltage is the voltage at which

None of these
 corona is just initiated
 corona is visible with blue or violet colour
 both 1 and 2

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Power Systems
The specific speeds of Kaplan, Francis and Pelton turbines are in

 neither increasing nor decreasing order.
 the increasing order.
None of these
  the decreasing order.

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