what is the role of proportional in process control?

6 Answers   OGDCL, Trident,

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how radio frequency level probes works with its controller ? what is its principle ? pls give me brief explanation?

0 Answers  

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Explain the difference between differial pressure & delta pressure?

1 Answers  

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On drum level, why we are using air to close Control valve?

4 Answers   L&T,

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What is the difference between fire detector and smoke detector?

5 Answers  

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Im working in a shopping center, it is also hotel and office building, two towers exactly and someone is proposing a PLC control for the HVAC system, but Im thinking of a DDC control system. in this case what is the difference between PLC and DDC control?

1 Answers  

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in sports(eg,cricket) what is the technique for measurement of speed of the ball thrown by the bowler.

6 Answers   BEL, PSU,

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what is three element in thermal boiler

9 Answers  

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What is governor of turbine?

3 Answers   Reliance,

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What is Difference between Bench Set & Operating Range of Control Valve?

1 Answers   AB Sugar,

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What is the difference between Error and Offset.

1 Answers  

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How to calibrate vertex flow meter? How to calibrate mass flow meter?

1 Answers   Chevron,

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