Power Systems
The conductor carries more current on surface as compared to core. This is called as

 unsymmetrical fault
All of these
 skin effect
 corona effect

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Power Systems
ACSR means

 Aluminium copper steel reinforced
 Aluminium core steel reinforced
 Aluminium conductor steel reinforced
 all conductor steel reinforced

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Power Systems
In a pressurized water reactor

 water is used at high pressure so that it is available is liquid from at about 280° C.
 heavy water is used as both coolant and moderator.
 the coolant water boils in the reactor core.
  both B and C.

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