what is the main difference b/w contactor and relay

2 Answers   Pace Pharmaceuticals,

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how one can check the Current of a DC 12 V battery ? Procedure. I told that take a thick wire (having more wires in it) and then join the + and - terminals of battery with the help of two ends of a thick wire .... is this correct or wrong .....

1 Answers  

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why does in transformer the v/f ratio constant?

2 Answers   TATA,

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what is distribution board and panel board

3 Answers  

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what is diffrence b/w -48vdc and +48vdc ?

1 Answers  

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What is the meaning of floating point earthing in battery backed systems ?

0 Answers  

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what are the limitations to use 33kv ac in industries?

0 Answers  

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why we use negative feedback in control system.

2 Answers  

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In a Circuit how the MCB and Fuse ratings are calculated. And shall the fuse follws the MCB or it is otherwise?

16 Answers   Emerson, HCL, Thirumalai Chemicals,

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How we can calc. the Backup time of a battery Bank???

6 Answers   Emerson,

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hi pal, i am vengatesh from tamilnadu(chidambaram),i have called for the written test for the post of jr executive(ELECTRICAL) of AAI ,I dont know about the question paper pattern,so any kindly help me to face the examination,post me the model question papers and some tips to write my examination to (vengi.annadurai@gmail.com)

0 Answers  

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What is open loop and control loop systems?

0 Answers  

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