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Power Systems

Power Systems
Which of the following quantities are to be calculated for generator bus?

 δ and V
 Q and δ
 P and Q
 P and V

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Power Systems
The total number of strands(N) is concentrically stranded cable with total annular space filled with strands of uniform diameter is given by (if x is number of layers)

 N = 3x²-6x+1
 N = 3x²-3x+1
 N = 3x²+3x+1
 N = 3x²-2x+1

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Power Systems
A transmission line has (2 + j4)Ω impedance, 100 MVA and base voltage is 10 KV. Find the per unit impedance value of transmission line?

 (2 + j4 ) pu
 (1 + j2 ) pu
 (0.5 + j1 ) pu
 (4 + j8 ) pu

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Power Systems
Non-commercial sources of energy are

 solar, wind and biomass.
  wood, animal wastes and agricultural wastes.
None of these
 fossil fuel, hydro power and nuclear power.

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Power Systems
Critical disruptive voltage is a voltage at which

 nether 1 nor 2
 corona is visible with blue or violet colour
 corona is just initiated
 both 1 and 2

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Power Systems
Sparse matrix is matrix which contain

 more number of memory elements
 more number of non zeros
 more number of zeros
 less number of memory elements

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