what is function of DCS , and how is it work , explain with difination

1 Answers   Bapco Bahrain Petroleum Company,

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(1) In turbine, what does term CDP, NI, NH, HSSOC, means. (2) What is the purpose of LO overhead tank in turbines.(3) An equipment is certified for EEX, IA, IIC,T6, what do you under stand by this.(4) what is SURGE, and how it is prevented, what is the purpose of bypass valve across AS valve.(5) Give 2 application of quartz crystal used for process parameter measurement.(6) what is meant by cold float of compressor shaft. (7) state four different types of flow measurement. For gas flow measurement mmscfd is the common unit. Expand the unit and specify significance of word S in the unit.(8) what is meant by Gap voltage, in vibration measurement. Normally how much Gap voltage is set and state the reason.(9) what will the new flow factor if D/P transmitter is Re-Ranged from 25” wc to 50” wc.(10) what is the usage of QDV & Volume booster.

0 Answers   ADMA OPCO,

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what is purpose of three way manifold valve using for dp transmitter

1 Answers  

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Hi Friends , i need one urgent help , i am preparing for M.tech entrance examination , i need some obejective questions related to instrumentation field. where can i get those ? can anyone help me pls ?

0 Answers  

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meaning of SMART

3 Answers   ISRO,

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what do you know about Foundation Fieldbus?

1 Answers   CCIE,

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what is the difference between E/P positioner and I/P positioner in control valve , in which application the respective positioner are used in.

1 Answers   ABB,

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What is passive connection of instrument in different type of I/O module

1 Answers  

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kindly sent some demo question and answer

0 Answers   HPCL,

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What are three main programming in PLC

5 Answers  

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How to connect field devices to PLC and DCS using a FIELD BUS, DP,MOD BUS(please tell me any extra interfce or adopters need in this case if we use remote i/o s)

3 Answers  

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how many mmwc are eual to 1kg/sq.cm & can we calculate mmwc into tph?

2 Answers  

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