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Power Systems

Power Systems
Find the value of a729, where "a" is the operator

 0
 α
 α²
 1

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Power Systems
What type of back up protection is used for alternators?

  Impedance relay.
  IDMT relay.
  Mho relay.
  Buchholz relay.

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Power Systems
The angular moment of 10 MVA generator is 0.2. Find the new value of angular moment for 20 MVA base?

 0.25 pu
 0.2 pu
 0.4 pu
 0.1 pu

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Power Systems
One atomic mass unit is equivalent to

  931.4 MeV.
 120.4 MeV.
 180.5 MeV.
 251.2 MeV.

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Power Systems
In thermal plant most of the energy is wasted in

 boiler
 turbines
 condenser
 ESP

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Power Systems
In which of the following configuration power transferability is higher?

 triangular configuration
 same in both configuration
None of these
 horizontal configuration

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