what does it mean an active front end in vfd plz explain it briefly

0 Answers  

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how checking is done in fiber optic cable? explain the working of RTU?

5 Answers   PSU,

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There is a problem with our HART475 it is not communicating with smart devices error becomes "NO DEVICE FOUND"we have insert 250ohm resistance as per requirement but invain plz tell me the solution?

1 Answers  

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What is CNC

1 Answers  

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what is written on orifice plate?

4 Answers  

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what is compensation? temprature & pressure

0 Answers  

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why temperature transmitter is showing ambienttemp.but 21.5ma. alarm AO showing at the display &how to sloves this problem.

2 Answers  

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which instrument is most commonly used to observe the external features of a grasshopper's abdomen?

1 Answers  

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what is the importance of CV in the control valves? how it is calculated?

0 Answers  

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i am going to attend ongc exam this coming june for Graduate Engineer Trainee post if anybody knows the question pattern or have experience plz share it with me

3 Answers   ONGC,

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Question on maha cement

0 Answers  

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How will you change the action of a control valve?

1 Answers   CCIE,

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