Answer / kashif

Level troll is used for measuring level of one liquid in vessel and interface level troll is used for more than one liquid commonly for two liquid having different S gravitates i.e Water and Condensate.

Answer / faiyaz

its working in the Archimedes principle generally used in closed tank the lose of weight of the body immersed in liquid total liquid equal to the displaced by the body level troll is used in single liquid and interface level troll is used in two liquid that is called level troll and interface level troll

what is the dp across a orifice plate & how much is permanent pressure across an orifice plate.

2 Answers   HPCL,

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how u meassure room temp?is it possible 2 meassure room temp by rtd or thermocouple?between rtd n thrmocouple which is more regard?3 meassure diff. between rtd n thermocouple?

3 Answers  

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Hi, I am Newely Joined in Construction company instrument engineer? Any one can Plz tell me How can I advanced preparation for Releated Engineering and construction Documents?

0 Answers  

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can any one pl explain me in brief that how we select the leakage classification in valve,means for liquid or gas there is any standard for selecting leakage classification or its depend upon valve size or any any other parameter.

3 Answers  

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i have been asked by QAFCO to appear for interview for thy post of Instrument Designer(INTOOLS)..i m engineering graduate with 5 years exp. in design engineering.Will this job profile suit me??i need all ur help n suggestions for thy same?

0 Answers   QAFCO,

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Can we use twisted pair cable instead of ethernet for communication?

1 Answers   Yokogawa,

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hi my name is rakesh patel i just complited my be in instrumentation & control now i am going to working as a validation engineer in a poject department so what is a scope in a future as a validation engginer ? what line is good for me can any bady give me complete solution please? your regard rakesh patel

0 Answers  

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In Boiler Drum Level- Level control valve how can it tuning (PID)?

2 Answers  

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For what Wake Frequency Calculation is used?

3 Answers   Reliance,

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How we are blocking 40 kg or more pressure through only 6 kg instrument air in control valve 

3 Answers  

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What is deffrence between Battery and capacitor

3 Answers   Siemens,

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please tel me the calibration of pneumatic controler.

0 Answers  

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