what are the three main programming languages in plc

12 Answers  

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what is interlock ckt? why it is necessary in industrial machines ?

2 Answers   IOCL,

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why we use -ve voltages in vibration prob?

1 Answers  

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Wht is Dry Leg Calibration and Wet Leg Calibration?

2 Answers  

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please tel me the calibration of pneumatic controler.

0 Answers  

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Troubleshoot to the device level basic process control systems given the Process and Instrumentation Diagram?

2 Answers   Chettinad, HPCL,

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how to define range of dp level xmeter in open tank

1 Answers  

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WHAT IS MEANT BY SUPERVISORY CONTROL?

3 Answers  

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for what purpose strain guage is used?

5 Answers  

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In Safe Guarding test what means by "Failed to Danger" ?

0 Answers   Optimal,

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Explain the difference between differial pressure & delta pressure?

1 Answers  

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What is two wire system and how it work

2 Answers   Bhel, IFFCO,

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