Instrumentation Interview Questions
Questions Answers Views Company eMail

What is rang ability?

1783

what is the calibration procedure for transweigh make weigh feeder?

Anjani Cements,

3451

Which is the best field foundation bus. ( FF ) Yokogawa, Honeywell or others ?

GNFC,

1342

-200mmwc to 500mmwc range transmitter have there 4mA is -200 and 20mA is 500.what is the range in 12mA?

NCC,

5 4303

What do you need to consider when installing a flowmeter

2 2968

When doing a liquid seal on a differential flow transmitter , most of the time the sealing liquid will be heavier then the process fluid. For wich application will the sealing liquid be lighter than the process fluid if transmitter is mounted below the process line.

Chevron,

1392

Where do we consider the pressure in mbar & where do we consider the pressure in bar & why is it so ?

BOC, Jindal Steel and Power,

2 2604

What is transmitter

GNFC, QNFS,

2 3400

components of control circuit belongs to control valve

KOC,

1227

why we are using (-24VDC) and where we r using plz tell me

7 5144

What is the difference between instrument earthing and normal earthing? and why is it necessary to do so?

Atul,

3 29682

How to calculate P,I&D value in PID controller ?

Jindal Steel and Power, SAL Steel Power,

1612

What is full form of hart communicator?

KOC, UPL,

2 5717

What is the Working principle of Dozing valve?

Shree Cement,

1769

Can anyone explain about ELectropneumatics principle?

Forbes Marshall, Step,

1 2516


Post New Instrumentation Questions

Un-Answered Questions { Instrumentation }

How to decrease opening & closing time of on/off valve?

962


Explain why use mmwc unit?

628


what is stroke check for field instument transmetter's & AOV's

1717


what is the field bus calble ? what are diffrences in orang colur cable and black coular calble ?

2473


Can any body help to get Rsemulator 5000 free from internet if possible then give me any link or any help .

2063






Why do you want to work here

1812


Area classification, Equipments, Gas groups, temperature classification, Ingress protection, Fire Extinguishers.

1486


why we are using drum level control valve air to close?

1591


How the warning lamp of a charging-system is activated ?

2155


what is the calibration procedure for magnetic flow meter @ onsite

1194


CONTROL VALVE OPERATING IN MANUAL BUT NOT IN MANUAL. WHAT SHOULD BE THE PROBLEM ?

1450


The Design Calculation of Level Transmitter For Different Structure open & Closed Vessel, Eg. Diff. Level Tx., Capacitance For Continous Operation

2332


Can any one send me IOCL instrumentation question papers.. i dont know the pattern of the questions and what to prepare can any one help me on this .. my email id is anwarnishil@gmail.com

1714


Coal mill Instruments Equipments for cement plant And process diagram ?

2416


Specify ideal accuracy of flow element like orifice plate, Ventury, Annubar. Ultrasonic flow meter etc.

1478