Instrumentation Interview Questions
Questions Answers Views Company eMail

how to relay switch sense the fault?

ME,

2080

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,

2958

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

IOCL, JSW,

2684

What is pre-commissioning and commissioning ?

Armco,

1 6369

what is actual drum level and compensated drum level?

APGenco,

1761

Why do you want to work here

Eskom,

1810

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

Matrix,

5412

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

1 8561

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 10768

where the use of direct action control valve?

2 4980

how to measured k type thermocouple temp.

NTPC,

3 7013

give some question relative instrument fitter?

Armco,

5783

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

1809

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

Sasol Firm, Thermax,

2151

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 3998


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Un-Answered Questions { Instrumentation }

How we can check the 2 wire proxy switch? & how it is connected to DI MODULE OF PLC?

2006


what is the working principal of pribe

1800


flow transmeter accuracy 0.075% of full scale & find ucertainty is 0.025 % so what is maximum limit band of uncertainty

1814


Explain how thw analog to digital converter works with the circuit diagram

2170


in valve is constructed as per SME B 16.34, then which standard is used for fire testing of valve?.

1565






Define cryogenic?

703


How to calibrate radar type level transmitter for interface level? Total liquid(liq.1 and liq.2), level both the liq individually? For. Both the liquid levels how the signal will go from transmitter to dcs? How to calibrate. Single radar 9:26:55 AM for 2 different liquids in a tank?

1567


Definition of reverse and acting controllers:

1812


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

1468


how to calibrate steam control valve in steam turbine

2814


what is surge and how is it prevented, what is the purpose of bypass valve across AS valve.

1553


Explain the mechanism behind the turbine meter.

683


selection of the zener barrier for the hazardeous area zone 0

1765


WHAT IS THE CAM POSITION IN CONTROL VALVE POSITIONER ? WHY IT IS USED?

537


I want measure the volumetric flow of gas in waste heat recovery Boiler?Tell me how and which type of instruments required. Plz mail me:naba02222@gmail.com Sam please post the answer .

1548