Power Systems
Oxide film arrestor has which of the following properties?

 It is expensive.
 Installed at points of transmission line where daily visit is difficult.
 Does not require daily charging.
 Both A and B.

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Power Systems
Half life is defined as

  the time required for one half of isotope to decay.
 none of above.
 the time required for full of atoms in a specimen disintegrate.
 the time required to spiliting of a heavy nucleus.

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Power Systems
The modern trend in electric power generation

 to have large size thermal plant located near coal fields.
 to have large number of small size thermal plants located at different places.
 to have large size thermal plants near load centre.
  none of above.

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