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Power Systems

Power Systems
Proximity effect is more in case of

 same in both cases
 over head lines
None of these
 power cables

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Power Systems
If we increase the spacing between the phase conductors, the value of line inductance

None of these
 increase
 decrease
 remains unaffected

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

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

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Power Systems
The main objectives of power system is/are

All of these
 Reliable power has to be available
 Cost of electrical energy per KWh is to be minimum
 Flexible power has to be available.

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Power Systems
Normally Z bus matrix is a

 unit matrix
 full matrix
 null matrix
 sparse matrix

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Power Systems
Stock bridge dampers are used in case hill areas to over come the which problem?

 increase string efficiency
 increase power factor
 unequal ice loading
All of these

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