What is the difference between a double acting and single acting positioner? what type of valves use single acting positioners?

1 Answers   AquaTech, NamPower, Samson Resources,

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why bevelling is done in an orifice ?

4 Answers   ABB,

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give classification of transducer based on type of application

2 Answers  

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what is piezoelectric transducer?give an example in power plant n state its principle?

0 Answers   Jindal,

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Speedtronic system .

0 Answers   CCIE,

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EXPLAIN SOME IMP QUESTIONS AND ANSWERS ON TOPIC ELECTRONICS,INSTRUMENTATION.........

1 Answers   ONGC,

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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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why 4-20 mA signal is preferred over a 0-10V signal

17 Answers   Sofcon,

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What is an antisurge control system, how it works?

3 Answers  

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Can Any body tell me how to check Modbus Settings in ER300N L&T trivector meter?

0 Answers  

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what is the zero elevation and zero supresstion in level measurement, how can use it?

2 Answers   GAIL,

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why thermocouple called thermocouple?

4 Answers  

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