can anybody send the rrb chennai &rrb bopal question papers of 2006&2007.My exam is on 12 oct 2008.Its urgent

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1) Can anyone give me a typical value for Insulation Resistance of 11kV xlpe cable? 2) How much will the IR value decrease per KM of cable length added?

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Name of Hydrocarbon gases.

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why we use ac supply as 415 volts instead of 415 v why we cant apply 230 v for dc

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Hoe do calculate the Cable size for Amps rating ?

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in our transmisison sub station why we step down firstly 132kv\33kv then 33kv to 11kv. can we direct step down 132kv to 11kv.

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i am having a 3 phase 12.5HP motor,that is connected in Star/delta.Without any Trip that motor stopped suddenly why?

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What is Automatic interlocking circuit dighram between two contactor for DG SET panel.

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what is the unit of electricity????????????

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How to calculate voltage drop loss in HT 11000 Volts XLPE Aluminium conductor cable. Any specific formula or Thumb rule

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what is the slip of synchronous motor

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what is the different between HT auxillary relay resistance and transformer tripping relay resistance?

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