Instrumentation Interview Questions
Questions Answers Views Company eMail

which are types of orifice tap ?

2 4722

how to measure draft pressure in transmitter pl. give its single line digram

1501

how to connect transmitter measuring sulfur process? 1-by using long impulse line or 2- by using coated short impulse line

1553

I installed the smartplant instrument v8, but can not be opened, that always said: "INTools 2007 hardlock no found". So Could you help me how to do for that?

SRAAC,

1616

Shall we get the reading on level transmitter only by termination,without commissioning?

1 3248

If the Barrier Fails during online then What will be the control valve position in field or Positioner action in the field.

3 4750

Why Flow measurement has to use Square Root

Hindalco, Petronas,

5 16383

why direct mounted pressure transmitters is always installed with DBB ( double bleed block) valve in process line or top of the tanks ?

1565

In control valve , Failure position : Close If it is Fail close(FC) during failure of AIR.. what will be the initial/ normal position of control valve is it normally open or close? please some one explain soon..

2 10226

how can we understand about dcs "bailey infi 90 dcs system" . how its work how signal come from field how it process and how o/p creative by controller. how its cards work.the bsic principle of working of dcs

1 3476

why we take 4 to 20 mA as out put of every instrument like pressure transmittre ?why we cant take 0 to 20mA as output?

OGDCL,

6 8783

what is the main supply source for pressure transmitter?

1 4678

Please explain the difference between instrument range and calibration range in terms of pressure transmitter? line design pressure: 93 bar operating pressure : 82 bar press Transmitter Range? calibration range ?

L&T,

3 33734

different between calibration range and instrument range ?

2 7541

why? Boiler furnesh pressure transmitter mount in boiler top and it's impulse line is in bottom of the boiler. Aneybody kindly tell me this reason.

Birla,

1 4243


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Un-Answered Questions { Instrumentation }

Hi,can anyone help me out with PhD programs related to Instrumentation field?I have a degree in electronic Instrumentation?

1456


what is interface level and how it is calibrate?

1751


WHAT IS TMXT IN TEMPERATURE FOUNDATION FIELDBUS.

1847


What care will you take in the installation of control valves,SCADA,DCS and FOC in Oil and Gas Project?

1620


Do you have reference list?

1398






How to convert mmWc(mili meter water colam) to tph(ton per hour)?

461


how to convert MA in to measuring values..and how mwasuring values into MA ?..plz ansr.i have intervw

2097


what does the ratio 800-400-300-200/1-1-1-1-1 in the specification of current transformer indicates?

2038


we have level transmitter for h2s04 storage tank capacity 10k ,always there are failure of transmitter due to failure of magnetic floats ,please come up with solutions at the earliest.

1570


What is the use of each wire in three wire RTD

2022


What is furnace draft control?

615


When doing a liquid seal on a differential flow transmitter , most of the time the sealing liquid will be heavier then the process fluid. For wich application will the sealing liquid be lighter than the process fluid if transmitter is mounted below the process line.

1376


Boolean algebra

1696


typical loop drawing of a simple feedback control comprising of one transmitter and one control

1540


Which are all the commonly used Bordon tubes in the pressure gauges. Do any one use ASTM A 312 tubes for this purpose?

1284