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Power Systems

Power Systems
A 3 layer and diameter of each strand is d, then find the total diameter of ACSR conductor?

 5d
 2d
 d
 3d

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Power Systems
Incremental cost of two generators Ic1 = 0.2 P1+60, Ic2 = 0.3 P2+40 and the ratings of the generator are 150 and 250 MW. Find the load sharing of each generator for a load of 200 MW?

 P1 = 60 MW, P2 = 140 MW
 P1 = 120 MW, P2 = 80 MW
 P1 = 80 MW, P2 = 120 MW
 P1 = 100 MW, P2 = 100 MW

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Power Systems
One fission of U235 releases energy of

  200 MeV.
 435 MeV.
 335 MeV.
 525 MeV.

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Power Systems
For harnessing low variable water heads, the suitable hydraulic turbine with reaction and adjustable vanes runners is

 Francis
 Pelton
 Impeller
 Kaplan

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Power Systems
Which of following power plants is free from environmental problem

  Hydroelectric.
 Nuclear.
 Steam.
 Diesel engine.

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Power Systems
Advantages of per unit system is/are

 No units for any quantity
 Need of transformation ratio
All of these
 It has units for all quantities

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