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

Instrumentation Interview Questions

Questions Answers Views Company eMail

Briefly describe instrumentation job

1 3041

I HAVE GOT TYPICAL PROBLEM WITH THE TEMP.INDICATION. THE PROBLEM IS THE K-TYPE T/COUPLE OUT PUT IS CONNECTED TO A INDICATOR.THE INDICATION FLUCTUATES SOME TIMES AND SOME TIME IT IS STABLE. WHEN I CHECKED OUT PUT OF T/COUPLE THE MV WILL NOT VARY. WHERE AS INDICATION FLUCTUATES. WHEN I GIVE MV SOURCE TO T/COUPLE EXTENSIONCABLE FROM THE FIELD IT INDICATION IS STABLE. WHEN GIVE MV SORCE TO INDICATOR ITS INDICATION IS STABLE. PLEASE CLARIFY.

5 7422

generally transmitter power supply having some range(12v to 35v) but the out put(4-20 mA) must same for given input.If we vary the power supply voltage then output mA also to be change according to V=IR. Is there any voltage regulator in the transmitter ?

1 3906

2 5269

How would i calibrate a new commissioned flow transmitter???

3 7624

WHY WE R NOT USING THE TURBINE FLOW METER IN THE STREAM SERVICE ? pl explain?

3 6166

1)how we calculate the drum level? and how we select the transmitter range?

3 10190

what are the steps to follow force a particular input or out put from ics triplex esd system?

1 3331

what is the function of a zener diode ?

Honeywell,

2 7563

in which mode of the zener diode act when load voltage is approximately constant

1 3992

In thermocouple could we use the lug for termination or not,Thermocouple is any time,I am currently concerned with K type.please let me know if anybody know

Saudi Aramco Shell Refinery Company SASREF,

4 11190

I am manjunath having exp in maintenance of chemical plants,know i want to do a design course INTOOLS,after doing design course can we get jobs in design field.sinve i dont have design exp..

1809

what is mass flow meter principal?

GIL,

4 8785

Someone Please tell me what are the Pre-Commissioning activities in a Thermal Power Plant for an instrumentaion Engg.

2592

why is honed type flow orifice plate? what purpose it used? how to select this?

4 17945

Post New Instrumentation Questions

Un-Answered Questions { Instrumentation }

How to calibrate smoke Dectector

1673

How the sizing of the analog signal cable is calculate?

2614

Operational amplifiers

2006

Sir , i have completed my M.Sc In Instrumentation and presently working in Maintenance department 3 yrs Exp , is there is any possible for work in offshore ..

1882

which processor is used in dcs.

2315

What are different types of valves?

1424

the whole paper was based on Transducers..questions like define repeatability, error,accuracy,precision..den there were many q. on the conversion of Pa to mmHg and other units.. also..der wer few Q. on some level sensors(with diagram)

2165

Can anybody tell me how to select the size of earthing cable for DCS & PLC system.Please tell me any relevant answer here or mail it to me.

2245

What are the different types of thermistors used in industries? How to the operation of typical thermistor?

2031

A valve in series with an orifice plate (DP transmitter), is aligned for constant pressure in the pipeline, if there is an error dx, How to align it in process.

1406

Hi my friends Is any one who can assist me in knowing the typical interview questions for system engineer at General Electric pty Ltd

2166

Why we are using reverse action in displacer types level transmitters on some Vessels?

2604

Turbidity analyzer working principle ?

1839

what is interface level measurement.who can calibrate interface level measurement transmitter online

2585

how 3 out of 2 Logic/interlocks works? give brief explanation with help of diagram.

2366

For More Un-Answered { Instrumentation } Questions Click Here