Instrumentation Interview Questions
Questions Answers Views Company eMail

What is the difference between Error and Offset.

1 15520

What s the exact height of installed transmitter?

1 4051

What is the reason PT speed not incresed in gas turbine?

ROC,

1900

What is the difference between sdv and bdv ?

1 16867

why we should maintain neutral earth voltage below 1V while calibration? why cant it be 1.2V or 2V

Hospira,

1990

a laways iface problem with brine level transmitter sealing diaphram a laways giving error and maximum reading i made re range and adjust with side glass but during commission it giving gap reading between it and side glass i need help from expert to explain how to calibrate it. note:dp transmitter yokogawa company

1 2999

We do have a problem in the company that is one PT connected to PlC which is mean 1 out of 1 in PLC system we do have the PAHH is 55 mbar and PALL 8 mbar with a timer of 15 sec for the PAHH the problem started when PAHH goes more than the set point which is 55 it reached up to 71 but due to timer doesn't trip . We force it and we checked everything nothing there . We replaced the transmitter problem still there the reading goes more than the 55 bar the range for transmitte is 0- 60 mbar . So we did loop check , aculaizing valve , wiring all are okay . What the possible causes for this ???

National Petrochemical Company,

2 4314

why we are using ungrounded RTD sensor and what is difference between grounded RTD and Ungrounded?

1 13598

I want to use 1/2 inch SS316 tube in my high pressure & temperature (64 kg/cm2 & 500 deg C)after condensate pot in pressure tranmistter. 1) Is it possible to use 1/2" ss316 tube in high pressure and temperature line. Tube manufacturer is local vendor. 2)On sarting the plant, We need to do system fluse that time condesate is not in the condesate pot so steam is directly contact with the tube. We have no exact calculation to know our tube is ok or nor at this time. pleae,reply.

1 4594

in rotark mov in display err msg showing how to remove the error

1 3778

what is disadvantage of field bus (ff)type of instrument

1 5713

what are different types of cables used in instrumention how to calibrate a level transmitter online ( rosemount )

1 11122

how do we commission inergen system?

1422

what are the on/off valve precaution?

Reliance,

1 6698

if RTD damage in plant, how we know?

Reliance,

5 10495


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Un-Answered Questions { Instrumentation }

To become an Instrument DESIGN engineer, is there any softwares or training to become Instrument Design engineer, plz suggest me, Iam very much interested in designing.

2962


i am from instrument branch i want paper patern of mahagenco . any pevious years paper regarding my branch send me please . please.....

1588


For what reason would you possibly be compelled to make use of a Smith Predictor. Explain the idea behind the operation of this device.

1494


How many are the types of instrument cables in terms of No. of pair.

1699


how to rectify the poor signal strength in utrasonic digtial flow meter ,model:ge digital xce868i

836






Gas equation

1404


send me last 5 years questions asked in rrb chennai, for section engineer

1627


How to calibrate Magnetic flow Transmitter in Field

791


what is a good line as ic engineer as maintenance ,oc, project, calibration ,validation engineer?

1476


How can a d.p. Transmitter be calibrated?

674


what is function of SCADA , and how is it work, explain with difination

1827


Give Detail information about plc,dcs,and scada system?

1260


What is standard of DCS panel design?and what is step of DCS panel design?wiring and type of connector(screw or DB connector)

1706


How to calibration a control valve?

694


i have steam drum height 1000mm. and i want to placed the transmitter below the tap.how i calculate.

1496