What is relation b/w Transmission Lines & Communication Lines ?

2 Answers  

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can we use 220 volt 15 w a.c. lamp on 220 volt d.c.

11 Answers   Philips,

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How to calculate battery back up time for a 400 AH battery bank installed in telecom shelter for a load of 20 Amps and time taken to fully charge this battery bank?

3 Answers  

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what we happen if 400 kvar cpacitor banks are on in manual mode and there is no load on mains ??????????????

7 Answers   HCL, Reliance,

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what is power frequency withstand and impulse withstand of a circuit breaker?

2 Answers   Power Grid,

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why is it that the HT motors & motors having very low kW rating(<1kW) have windings connected in STAR, whereas the motors having in between kW ratings have DELTA connected windings??

5 Answers  

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what are effects of harmonics in the three phase a.c power system ?

2 Answers   AIIMS,

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A 4-Pole D.C. Generator has a speed of 1500r.p.m. Then what will be the frequency of D.C. Generator ?

9 Answers   IBM,

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1 Sq.mm ( Aluminium Cable ) = How much Amphere ( AMP )

4 Answers   Google, TATA,

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why the electrolyte level in lead acid battery is maintained 2.5 cms above electrodes?

0 Answers  

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i have applied for the post of RRB section engineering chennai board please send me previou papers and solved answer. my mail id jagarapusrinivas@gmail.com

0 Answers   RRB,

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What is induction motor

1 Answers   Indoco Remedies,

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