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Power Systems

Power Systems
If the inertia constant H = 10 MJ/MVA for a 50 MVA generator, the stored energy is

 500 MJ
 50 MJ
 5 MJ
 10 MJ

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Power Systems
A cable has the following characteristics, L = 0.201 µH/m and C = 196.2 pF/m. The velocity of wave propagation through cable is

 32 m/s
 0.0312 m/s
 159.24 m/s
 159.24 m/µs

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Power Systems
String efficiency depends upon

  all of these.
 voltage rating of whole string.
 no. of SCR in the string.
 voltage rating of one SCR.

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

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

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Power Systems
One atomic mass unit is equivalent to

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

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Power Systems
Under excited Synchronous phase modifier works as

 shunt reactor
 series capacitor
 any of the above
 shunt capacitor

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