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Power Systems

Power Systems
More efficient plants are used as

 both 1 and 2
None of these
 peak load plant
 base load plant

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Power Systems
A string type insulator has three units with self capacitance C and ground capacitance of 0.2 C having a string efficiency of

 82%
 78%
 80%
 76%

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Power Systems
Which power plant cannot have single unit of 100 MW capacity

 Steam power plant.
 Nuclear power plant.
  Diesel engine plant.
 Hydro electric power plant.

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Power Systems
Positive, negative and zero sequence impedances of line are 2,2 and 5 pu respectively. Find self and mutual impedances respectively?

 1 and 3 pu
 2 and 5 pu
 3 and 1 pu
 2 and 2 pu

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Power Systems
Units of incremental cost is

 Rs/hr
 RsMW/hr
 Rs/MWhr
 MWhr/Rs

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Power Systems
Range of accelerating factor is

 10.8 to 11.2
 1.6 to 1.8
 1 to 10
 50 to 100

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