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Power Systems

Power Systems
A 3 layer and diameter of each strand is d, then find the total diameter of ACSR conductor?

 2d
 d
 3d
 5d

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Power Systems
Plug setting of a relay can be altered by varying

 no. of ampere-turns.
 air gap of magnetic path.
 none of these.
 adjustable back up stop.

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Power Systems
Which of the following statement is/are true regarding infinite line?

 It has infinite voltage
 both 2 and 3
 It maintains the constant voltage
 It has infinite length

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Power Systems
Which of the following is an impulse turbine

  None of above.
  Francis turbine.
  Kaplan turbine.
  Pelton turbine.

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Power Systems
An over current relay, having a current setting of 125% connected to a supply circuit through a current transformer of ratio 400/5. The pick up value is

 6.25 A
 12.5 A
 15 A
 10 A

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Power Systems
What is the total installed power capacity (MW) in West Bengal as published by ministry of power in 2011?

 10000.32.
 8113.27.
 15515.22.
 6114.05.

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