Why do we go for 4-20mA? why not other standara?

6 Answers  

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What is difference between differential pressure & delta pressure?

0 Answers  

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the square root type transmitter r used to which applications

4 Answers   Roche,

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Is it possible to drill additional gland hole in EExd or EExe JBs? What are the points to take care?

2 Answers  

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what is the difference between Ethernet unmanaged and managed Switch?

2 Answers  

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Which tank weighing system is better to install (Accuracy point of view) 1) Tank weighing system with 3 load cell or 2) Tank weighing system with 4 Load cell

0 Answers  

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Why Flow measurement has to use Square Root

5 Answers   Hindalco, Petronas,

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Can anyone send most commonly asked interview question in Oil & Gas industry

0 Answers  

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Why mmwc unit is used?

0 Answers  

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What are the logic behind 2x2 and 2x3 logic and more when ask in interviews

1 Answers   Reliance,

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how to calculate control valve bonnet size?? or how to select its material?

0 Answers   Jacobs,

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What is actuator what is motorized control valve?

5 Answers   Emco,

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