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

Instrumentation Interview Questions

Questions Answers Views Company eMail

How much flow is passing through 6 inch line? There are no gauge, no any transmitters in line.

3 6314

What is megering????

2 15471

waht is difference between pressure transmitter and transuducer

Gasco,

4 7723

There are two chlorination tonners both are connected to two pressure swithes and the pressure switch is connected to SOV which operates the valve to changeover the tonner selection i.e if pressure one tonner goes low the other tonner should come in line if it is inautomatic selection design a circuit using relays ?

1959

what is input and output cards of plc needs to be hot swappable mean

1 5518

why magnetic flow meter is not used in thermel power plant operation

JK Paper,

2 6774

How does milli volt is created in themocouple?

Jaypee,

2 6110

How does pyrometer works?

1 7482

Why we are using temperature and pressure as a reference when measuring flow of steam?

Shell,

4 9262

What is Process portal A(PPA)?

ABB,

1 5802

How Many Slave Can be used in one slave ?

2 5388

what do you mean by cathodic protection?

Saipem,

1 5798

what is Best Among SINK Or SOURCE Type Design In Digital Signal, Either Iput Or Output? WHY?Can any one..

Accer, Reliance,

2150

what is the difference between transmitter and smart transmitter ?

Aditya Birla,

4 9229

what is loop folder?

Bapco Bahrain Petroleum Company, Hyundai,

1 25823

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Un-Answered Questions { Instrumentation }

how to relay switch sense the fault?

2604

wich is coming the first HAZOP OR SIL

2753

1.what is controller proportional gain 2.what is the controller intergral action time. 3.A proportional plus derivative controller that has a proportional band of 20% and a derivative action time of 0.1 minutes. Construct the shape of the output waveform for the triangular input if the input rises and falls at the rate of 4 units per minute.

2684

How can measure flow in oil line?which type of transmitter is generally used?

4212

how pressurize drum calibrated ?

2046

how u calibrate pneumatic n motorized c/v?

1964

How to convert Differential pressure to flow in TPH

2234

what is actual drum level and compensated drum level?

2228

Q1]IF THE RANGE FOR FLOW IS -35 TO 125 WHAT WILL BE THE SPAN FOR ABSOLUTE AND FOR NORMAL? Q2]HOW TO CALIBRATE CAPILLARY TYPE LT? Q3]HOW MANY ERROR CALCULATIONS ARE THERE USED IN PROCESS INDUSTRIES? Q4]HOW TO CALIBRATE TEMPERATURE TRANSMITTER? Q5] HOW TO CALIBRATE LEVEL TROLL AND HOW TO CONNECT? Q6]PLEASE TELL ME THE BASIC FOR INSTRUMENTATION WHICH IS APPLIED FOR CALIBRATION AND FOR ALL? PLEASE MAIL THE ANSWER TO honest_yes@yahoo.in

1939

May I have a brief note above the voltage barriers? Whats is the purpose? Please mail me if you've operational details, mail id: rajkumar.diice@gmail.com

2130

Explain the mechanism behind the turbine meter.

1114

i have been asked by QAFCO to appear for interview for thy post of Instrument Designer(INTOOLS)..i m engineering graduate with 5 years exp. in design engineering.Will this job profile suit me??i need all ur help n suggestions for thy same?

2216

What are the types of control valves available

2102

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

2531

Square root calculation for dp flow transmitter?

1241

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