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Power Systems

Power Systems
Breaking current is a ------------------ value?

 maximum
 any of the above
 RMS
 average

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Power Systems
Objectives of power system is/are

 both 1 and 2
 Rated voltage and frequency has to be supplied to the consumers
 Cost of electrical energy per KWh is to be minimum
 nether 1 nor 2

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Power Systems
A 3 layer, total diameter of an ACSR conductor is 5 cm. Find the diameter of each strand?

 1 cm
 1.5 cm
 15 cm
 5 cm

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Power Systems
In kaplan runner, the number of blades is generally of the order of

  3 - 6.
 1 - 2.
 12 - 16.
  16 - 24.

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Power Systems
The power generated by two plants are; P1 = 50 MW, P2 = 40 MW. If the loss coefficients are B11 = 0.001, B22 = 0.0025 and B12 = -0.0005, then power loss will be

 5.5 MW
 4.5 MW
 8.5 MW
 6.5 MW

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

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

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