what should be the attitude while answering an interviewer?

2 Answers  

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why we take 4 to 20 mA as out put of every instrument like pressure transmittre ?why we cant take 0 to 20mA as output?

6 Answers   OGDCL,

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Why we use 4 - 20 ma?

6 Answers   IJT, ONGC,

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what is the input of digital counter during the the calibration time?

0 Answers  

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what is the square root flow transmitter formulla ?

2 Answers  

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How r the calculation of process line mpm.

0 Answers   Bhushan Power Steel,

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Describe all types and levels (4-20mA, 0-10V, mV, pulse, etc.)of analog and digital I/O used in process control application.

2 Answers   Jindal,

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What is the differaence between PLC and DCS?

6 Answers  

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If we increase D what will be the controller action?

2 Answers  

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what u mean by speed control in turbin? how it was working?

2 Answers  

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What is expansion of SMART Instruments? And What is it?

35 Answers   Atesco,

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Why the industry's standard current standards are from 4mA to 20mA,not from 0mA or any other range?

3 Answers  

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