Answer / modi mehul p.

when positioner fail at that time we use by pass on a
positioner..... and in spilt range controller we cant used
bypass on a positioner.......

Answer / fariba

By-pass option allows positioner to be removed without
disturbing the control valve operation.

why the supply frequency used in America is 60Hz while that used in India is 50Hz?,

2 Answers   Bosch, Genco,

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What is difference between ESD and PLC please Explain me clearly.

0 Answers  

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What is the working principle of oxygen analyzers(zirconium oxide type) used in CFBC boilers?

3 Answers   Bajaj, Kohinoor, Wartsila,

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i hav applied for the post of engg. in iocl so please require the past test papers fro instrumentation engg please please help me and send me the papers or tell me the pattern and type of ques asked in examination......

0 Answers  

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why need 3 element system in power plant? if it is not there then what l happen?

5 Answers  

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What is the use of valve positioner?

1 Answers   CCIE,

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where do you give the 4-20 ma i/p in a MIL control valve?

3 Answers   Siemens,

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What is DCS and PLC scanning time?

5 Answers  

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Hi Frnds , If Suppose 1 Pair cable of 1.5 sq mm is used for Transmitter and instead of 1.5 sq mm if i used 0.5 sq mm cable will the resistance change will occur and does it affect our transmitter reading. plz mail ur answer to ntnkamble@gmail.com plz immediately mail ur reply

1 Answers  

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why metallic housing is provided of solenoid valve.

1 Answers   HPCL,

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Questions on flow meters,few questions on HART protocol,

0 Answers   Monnet,

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need to calculate flow rate with the help of dp range and orifice bore dia and size. range is 0 to 400 inwc and orifice size is 12 inch 150 # rf and bore dia is 7.180 inch. need to calculation for flow rate

0 Answers  

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