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Power Systems

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

 0
 1
 α
 α²

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Power Systems
One atomic mass unit is equivalent to

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

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Power Systems
a 50 Hz, 3-phase synchronous generator has inductance per phase of 15 mH. The capacitance of the generator and circuit breaker is 0.002 µF. What is its natural frequency?

 290 kHz
 29 kHz
 2.9 kHz
 29 MHz

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Power Systems
The function of moderator in a nuclear reactor is

All of these
  to slow down the neutrons.
 to increase the energy of the neutrons.
 to absorb the excess.

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Power Systems
If we increase the length of the transmission line, the charging current

 remains unaffected
 increases
 decreases
None of these

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Power Systems
A sort line with R/X ratio 1, the zero regulation is obtained when the power factor of the load is

 unity
 0.707 leading
 0 leading
 0.5

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