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Power Systems

Power Systems
What should be the minimum depth (in metre)of cable trench to dug for laying of 1.1 kV?

 1.20.
 0.90.
 1.05.
  0.75.

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Power Systems
The water from a catchment is 60*106 cu m annually and hydro station has head of 40 m. Assuming ideal generator and turbine, the power that can be theoretically generated is

 750 kW
 250 kW
 300 kW
 500 kW

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Power Systems
Find the characteristic impedance of a transmission line, if impedance is 16 Ω and admittance is 0.1 mâ„§?

 400 Ω
 200 Ω
 160 Ω
 320 Ω

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Power Systems
In a two plant system, the load is connected to plant number 2. The loss coefficients are

 B11,B22,B12 are non zeros
 B11 is non zero,B22 = B12 = 0
 B11,B12 are non zero ,B22 = 0
 B11,B22 are non zero,B12 = 0

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Power Systems
Cheapest plant in operation and maintenance is

  hydroelectric.
  diesel power.
  steam power.
  nuclear.

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Power Systems
In a long transmission line, if we increase the length of the line, the parameters A and B respectively

 decreases and decreases
 decreases and increases
 increases and decreases
 increases and increases

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