why we use cascade control and feed forward control in 3 element drum level control measurement of steam drum .what is cascade and feed forward control system ?give example .

0 Answers   Visa Steel,

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What are de-saturators?

0 Answers  

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please send data bank of quetions answers on analytical instrumentation.

0 Answers  

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how to work gas chromatography explain principle ?

2 Answers  

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why we us isolation barrier in hazardous area how it works to protect the area and please clarify its current flow.

0 Answers  

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What is the SCAN time of a DCS/PLC? What is the typical value for scan time of DCS and PLC?

6 Answers   Essar, Gasco, Siemens,

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What are the disadvantages of Human-Machine Interface (HMI)? atleast 3.

1 Answers  

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regarding level tx i would like to know how to select the range of the level transmitter in a closed drum(steam drum or deaerator)?

1 Answers  

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What is linearity of RTD over 0 to 200 degC?

1 Answers   Honeywell,

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if we have 380 KVA DG. how to calculate Power Factor. With detailed formula

1 Answers  

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when we calibrate the DP transmitter at that time which matrial we used in pressure pump?

4 Answers  

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

0 Answers  

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