I have applied the post Junior Engineer-iii(c&w)in R.R.B chennaI recently . can i get any model question paper LAST 4 YEARS?

2 Answers   Data Entry Operator, RRB, SSC,

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Why it is necessary to isolate fire fighting when you are taking shutdown for lv board.

0 Answers   KSEB, L&T, Siemens,

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What are the different protection systems takes place on control panel board?

7 Answers   BSNL,

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50 electric bulbs are connected across supply of 220 volts. After one bulb is fused remaining 49 bulbs are again connected to same supply. which case will have more illumination & WHY????????

5 Answers   KJ,

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Define damping ratio.

0 Answers  

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what happens when the phase and earth wires comes in contact? and why

2 Answers  

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prove that inegration of { e^z / z^2 + pi^2 }dz is equal to i/pi by Cauchy Residue Theorem.

1 Answers  

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why does connected a indutor with mnsformeretering core of current transformer ?

0 Answers  

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what is meant by insulation voltage in cables? explain it?

4 Answers   ABB,

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if 2 coil of 1000W connect in series and 200 v is applied across it . then what is the total power of coil when coil have only resistive load .

0 Answers   BSNL,

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How to determine the short circuit current for breakers and VCB.

1 Answers   Sabic,

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what is the value of voltage & current lightning during rainy season.

0 Answers  

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