What is servo lock in CNC how they work and if any parameter for them in CNC machine

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sir,i am swati. i am goin to gv jspl exam on 21st nov'10. iwant previous year question paper. plz help me out. my emailid is swatisinha.dav@gmail.com

1 Answers  

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What is transient Phenomenon?

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Advantages of low voltage drive (control panel)

1 Answers   ABB,

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PAC and simple Ac different

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In 1000KVA Transformer why does we connect HT with delta connection and LT with star connection.Illustrate by showing formula?

4 Answers   Tata Motors,

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During Testing of Maintenance Free Earthing, How deep should be the Spikes of Earth Test Meter should be inserted in the soil(one spike is 15 Meter & Other spike is 30 Mtrs away from the Main Earth Electrode. Because, recently, we observed that when spike is inserted 3-4 Inch in the earth- results are better, If spike is inserted 1 feet deep than results are increasing.

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what is the difference between transformer,converter and transducer

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Why and which type of tertiary winding is used in most of the power transformer?

2 Answers  

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How do you calculate of power factor, if it is lagging or leading for unit(1).

4 Answers  

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A IS TWICE AS GOOD A WORKMAN AS B AND TOGETHER THEY FINISH A PIECE OF WORK IN 14 DAYS.THE NUMBER OF DAYS TAKEN BY A ALONE TO FINISH THE WORK IS 1.11 2.21 3.28 4.42

3 Answers   Ramky,

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what is the type of starter used in tube light?

2 Answers  

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