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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?

 3d
 2d
 d
 5d

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Power Systems
In a Gauss Seidel load flow method, the number of iterations may be reduced if the correction in voltage at each bus is multiplied by

 Lagrange multiplier
 Acceleration factor
 Blocking factor
 Gauss constant

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Power Systems
Which of the following faults is/are treated as external faults?

 Failure of prime mover of the generator
 Failure of excitation
All of these
 Over voltage

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Power Systems
A cable has inductance of 0.22 mH per km and capacitance of 0.202 µF per km. The surge impedance of the cable is

 28 Ω
 40 Ω
 52 Ω
 33 Ω

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Power Systems
Pelton turbine is a ----------- turbine

 impulsive
 any of the above
 inward radial flow
 axial flow

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Power Systems
For a lossy transmission line, the characteristic impedance does not depend on

 The permittivity of the dielectric separating the conductor.
 The operating frequency of the line.
 The conductivity of conductors.
 The load terminating the line.

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