I am going to appear RRB Sr. Section Engineer Exam, Electrical. Can you send me previous year questions of RRB Electrical engineer. specially Section Engineer questions. my email id is likerahulworld@gmail.com

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difference between silent and non silent pole rotor?

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why ac supply neutral should earth not in dc (-)

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How phase displacement change in the over current relay coils.

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Tell me about Tesla.

1 Answers   Tata Power,

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Why Earth pits are inter connected

8 Answers   Airtel, Taj Group,

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How to arrange a hous hold earthing system to keep minimum earth resistance( below 7ohms).

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1)How much current can a 3-1/2 core 100 mm wire carry? 2)What are the special cables required for explosion proof wiring? 3)In case you do not have coal and salt for earthing, how can you achieve good temporary earthing? 4)One horse power single phase motor is more likely to get hot than a one horse power 3 phase motor. Is it true or false, if true why? 5)What are the different types of soft starters for large motors?please explain?

0 Answers   TATA,

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what id a dry type transformers and its function ?

0 Answers   Wipro,

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fog produced due to?

2 Answers   MAHINDRA,

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Usually in the L & T make MCC feeders' power circuit,we have BMR after the MAIN CONTACTOR.,can we interchange their position, keeping the control logic same???

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How to set an overload in a motor?

3 Answers  

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