Instrumentation Interview Questions, Answers for Freshers and Experienced asked in various Company Job Interviews

Instrumentation Interview Questions

Questions Answers Views Company eMail

how to relay switch sense the fault?

ME,

2609

HOW TO SOLVE PROBLEM WITH ENRAF LEVEL TRANSMITTER 854 ATG THAT PASSWARD DO NOT Exist INTO TRANSMITTER TO ADJUST LEVEL WITH PORTABLE PET 847, WRITTEN WRONG PASSWORD , I AM SURE THAT DEFAULT PASSWARD (W2=ENRAF2) IS THIS TRANSMITTER NEED TO REPLACE SOFTWARE AND HOW?

Lerco,

3517

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

IOCL, JSW,

3179

What is pre-commissioning and commissioning ?

Armco,

1 7207

what is actual drum level and compensated drum level?

APGenco,

2230

Why do you want to work here

Eskom,

2330

How to calibrate displacer type level transmitter (chemtrol make )for level measurement in hotwell , LP & HP heater ?

Matrix,

5909

how to draw a flowchart for swapping two numbers using bit wise operators?

1 9520

Why we are using 4-20 mA as Analog signal transmission other than 3 to 19 or 2 to 18 or 6 to 22 like wise ? What is the reason behind using 4 & 20 mA? Can anyone give proper technical reply ?

Air Liquide,

5 12358

where the use of direct action control valve?

2 5957

how to measured k type thermocouple temp.

NTPC,

3 8200

give some question relative instrument fitter?

Armco,

6263

in sulfur process what is material of impulse line we use to connect with transmitter ? and does teflon affected by sulfur?

2270

can you send remote seal interface level transmitter calculation steps for oil water saperator.

Sasol Firm, Thermax,

2623

An atmospheric storage tank has a diameter of 20 m and a height of 8m.It is half-full of liquid with the remainder of the space containing air normally at atmospheric pressure. If the connection to atmosphere is accidentally closed off and 10 cubic m of liquid removed, what happens to the internal pressure of the tank? What are the possible consequences for the tank?

1 4705

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Un-Answered Questions { Instrumentation }

how to convert cubic metre per hour to newton cubic metre per hour

2006

how do calibrate the valves.. with clear manual

2089

can any one tell me when ongc placement test and its forms is available????/ pls tell me if u know

2125

How it the difference between force balance system and dispalacement balance system?

2096

can we copy the software from a transmitter using hht(hart 275) ?

2077

hye SAM acn u send your e mail id, so that i can solve my query through e mail?

2250

where proximity sensor installed on tank in loading arm application

2267

what is interlock system and why we use of this?

2038

explain key exchanges in all security modes WPA,WPA2,TLS?

2046

Give an example where you had aproblem on the job, and tell me how you solved the problem. and the finalvoutcome.

2242

how many types of viberation transmitter and how to calibrate and where use of vibration transmitter

2138

protection relay watchdog contact operation?

1959

why we use the ac supply load cell>?can we use the dc supply load cell?advantages and disadvantage of the ac supply load cell?

6412

can u briefly explain aboutan aryton shunt multirange DC ammeter?

2741

what is intrinscily safe system and where we use?

2526

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