Answer Posted / bilal

O2 Analyzers Principle:- the basic principle of that
analyzer is Paramagnetic system its installed the coil and
when we need to measure the gas we generate the e.m.f Oxygen
elements drooped there then we measured the value.

what is the difference between profibus and controlnet networking.

3280

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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% , so what to do for solve this problem. The cv is double acting and mounted for anti surge operation, it having 4 nos. volume booster, one sov, one positioner, etc..?

2147

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what do u mean by compensation n pid tunning?in pid tunning what you tunned?is it possible 2 tune p i d

5508

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Instrumentation symbols interpration, P& ID, Logic diagram analysis, Electrical drawing analysis.

2018

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in which principle pressure tx,level tx ,flow tx,temp tx ,control valve works?

3240

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Positioner usage.

1980

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why I need valve guard and whats different between guard and positioner ??

1429

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what is performance test.need defination

1766

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Why does a pressure gauge installed on reactor, doesn't have any vent line below to release the pressure? Is it any kind of designing mistake or it actually does not require any vent line? And if it does not require any vent line below it then how we are gonna release the pressure built inside the pressure gauge?

2217

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How would you choose differential range?

1225

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Describe the typical instrumentation used in monitoring the performance of a shell and tube heat exchanger.

2124

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centrifugal compressor interlock? Tell me the parameter at which compressor will trip

3236

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what is use of communication wire in multipare cable(oil and gas field), why this communication wire not used in single pair cable?

2215

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what is easiest way to read STL language in PLC?

3184

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please send the drdo exam paper

2432

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