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Power Systems

Power Systems
Pumped storage plant is a

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

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Power Systems
If the inertia constant H = 10 MJ/MVA for a 50 MVA generator, the stored energy is

 50 MJ
 500 MJ
 5 MJ
 10 MJ

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Power Systems
Mercury is choice with steam in binary vapor cycle because

 relative low vaporization pressure.
 higher saturation temperature than other fluids.
 higher critical temperature and pressure.
  all of above.

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

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

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Power Systems
Find the value of a729, where "a" is the operator

 1
 α
 α²
 0

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Power Systems
Which of the following matrix is used for load flow studies?

 Y bus matrix
 null matrix
 Z bus matrix
 Unit matrix

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