Draw block digram for well head from well to shipping pump?

0 Answers  

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What is instrumentation control?

0 Answers  

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If a control valve is hunting means means if we are giving 50% to the cv, the cv will open at 51% then slowly slwoly it will reaches 49% , then it will reaches again 50%, this type of action occured frequntly.. so what to do for solve this problem. The possible cause is in volume booster or positioner's relay.. positioner is double acting .. and make siemens..sipart.The cv is double acting and mounted for anti surge operation, it having 4 nos. volume booster, one sov, one positioner, etc..?

2 Answers   Gujarat Fluorochemicals Limited (GFL), Shell,

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What is eddy current? Describe the operating principle of proximity probe.

0 Answers  

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1,why we use 4-20 ma output of all instrument qhy not use 0- 20, 2,what is the different between PLC & DCS. 3,how can we meaure maximum span of new flowmeter if not given any information.

4 Answers   Reliance,

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In Increasing temperature why thermocouple used and RTD is not used. Both RTD and Thermocouple have in Range of uses.

5 Answers   L&T,

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hello friends, can you please send me the model paper or question paper to be prepared for hpcl examinations????????? You can mail me at rahim_here@yahoo.com waiting for your reply........... help me .. plz.....

0 Answers  

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What is the difference between rich gas and lean gas?

3 Answers  

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Can DP transmitter with orifice plate works on Beta ratio 0f 0.3 and differential pressure of 100 MMWC in liquid service application?

1 Answers  

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what is all types of analyzer in water production plant?

1 Answers   Marafiq,

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How to find the range of DP cell Transmitter for measurement of level in closed vessel.

3 Answers   Rosemount,

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define COMPENSATION??

4 Answers   Bosch,

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