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Power Systems

Power Systems
Reflector nuclear reactor are made of

 steel.
  beryllium.
 cast iron.
 boron.

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Power Systems
A network containing 50 buses in which 10 are the voltage control buses, 6 are the generator buses. Find the size of the Jacobian matrix?

 34*34
 84*84
 33*33
 83*83

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Power Systems
A guard ring is used in string type insulator having 3 units to improve string efficiency. Find the capacitance of metal link 2 if pin to earth capacitance of each unit is 1 F?

 1 F
 4 F
 2 F
 0.5 F

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Power Systems
Bonding is done at the both ends of the cable to reduce the

 iron loss
None of these
 sheath loss
 copper loss

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Power Systems
A power station plant load factor is defined as the ratio of

 minimum load to peak load
 average load to the peak load
 minimum load to average load
 the energy generated to that of maximum energy that could have been generated

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Power Systems
The power output from an hydroelectric plants depend on

 type of dam, head, system efficiency.
 type of turbine, type of dam and type of catchment area.
  discharge, system efficiency.
 type of dam, type of catchment area and discharge.

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