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Power Systems

Power Systems
In a 4*4 Y bus matrix the number of non zero elements are 12. Find the sparsity of the system?

 0.75
 0.5
 0.25
 1

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Power Systems
For transmission line which one of the following relation is true?

 AD - BC = 0
 AD - BC = -1
 AD + BC = 0
 AD - BC = 1

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Power Systems
The inductance of single phase two wire line is given by

 4×10-7× ln(r'/d) H/m
 0.4×10-7× ln(r'/d) H/m
 4×10-7× ln(d/r') H/m
 0.4×10-7× ln(d/r') H/m

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Power Systems
Operating time of pumped storage plant is

 high
 very high
 low
 can't say

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Power Systems
A loss less transmission line having surge impedance loading (SIL) of 2280 MW is provided with a uniformly distributed series capacitive compensation of 30 %. Then SIL of compensated transmission line will be

  2280 MW.
 3257 MW.
 2725 MW.
 1835 MW.

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Power Systems
On which one of the following cycles does a modern steam power plant work?

 Otto cycle
 Bell-Coleman cycle
 Rankine cycle
 Carnot cycle

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