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,

2604

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,

3515

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

IOCL, JSW,

3172

What is pre-commissioning and commissioning ?

Armco,

1 7203

what is actual drum level and compensated drum level?

APGenco,

2228

Why do you want to work here

Eskom,

2326

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 9516

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 12337

where the use of direct action control valve?

2 5950

how to measured k type thermocouple temp.

NTPC,

3 8190

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?

2268

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

Sasol Firm, Thermax,

2615

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 4703

Post New Instrumentation Questions

Un-Answered Questions { Instrumentation }

what is orfics working in main steam line. is it increase pressure, velocity of steam flow and dicrease steam flow rate. or any other

2181

What is exact difference between the panel earthing and system earthing in DCS system. What is the value of resistence.

2663

any body who gone thru recent iocl interview.INSTRUMENTATION questions. I need.

2487

model question paper of instrumentation for Jindal GET 2010.plz reply sudhanshukumar08@yahoo.com

2345

field bus transmitter calibration procedure tell me

1828

Define the difference between a stable versus an unstable controlled system and some of the tools you might use to be able to detect when this is happening and assumptions used for control system application design that could contribute to instability

1834

which type of filter gives the constant phase characteristics?

1924

State bernoulli’s application.

1141

what is KV and XV valve

1796

diff between neutral ,ground,phase , earthing and shielding?

2287

give eg of how I/P is used in control loops

1940

WHAT IS THE DIFF. BETWEEN SKIN TEMPERATURE AND PASSES TEMPERATURE..?

2531

Define the terms Accuracy, precission, Spam, process tolerance while doing calibration of an instrument? Explaini with an example?

2102

In my company plc based winders are operated. one day there was a data transmission failure alarm shown on pc. as per sir instruction we have reset master plc but winders were not triped and alarm gone. so what master plc do?

1861

What is the use of temperature compensation?

2000

For More Un-Answered { Instrumentation } Questions Click Here