Answer Posted / deepak sharmad

an analog input/output is jsut the variable signal which
come and go to the field instruments linearly in the form
of 4-20 ma.
while the digital input/output is the signal which comes in
the form of 0 or 1 that is for the motor/pumps start stop
and their feedbacks.

What is instrumentation control?

1211

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we are having yokogawa centum cs3000 dcs in our power plant. i need some of the operator guides NOT to appear in HIS0163 AND HIS 0162 but it shoul appear in HIS0164 HOW TO DO IT?

2642

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Give 2 application of quartz crystal used for process parameter measurement.

2053

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Explain bernoulli’s theorem. State its application.

1230

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for oil & gas industries which zone is normally preferred? why? give its example?

2048

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which type of signal used in instrument?

9973

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Dear Sir/Madam,im going to attend Hpcl written exams on feb 17th in instrumentation stream..can anyone send me the HPCL model papers and pattern of HPCL ....i ve not yet attended anything in HPCL...so i dont know how it comes...so just i need some model test papers and pattern ..pls help me friends...

2171

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Explain plc level and its type?

1413

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we are using centum vp as monitoring with Dell precision work station T3600 but some times PC(s) are restarted automatically . how we can solve this problem? thanks

2230

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How to work togather like sov,limit switch,proxy switch and booster in xv

4291

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what is cold loop? difference between hot and cold loop?

2303

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can anyone guide me how to get any of the previous year GAIL question papers? are they available? 0n 2nd august i have to take the written test.

1960

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what is the reason while warning lamp is on while the engine is cranking?

2219

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I need control valve ISA hand book. Is there any site to download that big book containing all the pages. Written by Paul Friedmann

2295

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What is the difference between uv and ir scanners? and what is the workig principle of both

2424

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