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

Instrumentation Interview Questions

Questions Answers Views Company eMail

what is the difference between E/P positioner and I/P positioner in control valve , in which application the respective positioner are used in.

ABB,

1 6504

Which is your favourite subject & explain any one topic of it.

L&T,

9594

Which topics are covered in Process Control?

Honeywell, L&T,

2155

Explain PID controller tuning & any one method used for it.

L&T, Oil India,

1 7805

Tell about your IFFCO plant visit.

L&T,

2075

Explain Three way boiler.

L&T,

2 7281

Draw bode plot of any transfer function. Why is plotting bode necessary?

L&T, STS,

2506

Explain any simple temperature control system.

HGJ, L&T,

3 8812

i want to calibrate a transmitter in the range of -100 to 300 mmwc. How it is possible to measure -100 to 300?.

Hindalco,

2 5796

what is the difference between mmhg & mmwc?. i want to calibrate a transmitter in the range of -100 to 300 mmwc. Which is the reference for calibrate the Tx,if mmwc not available?. Is it mmhg or mmho2?.

UPL,

3 49245

What are the two program execution modes of PLC?

4 8734

What are Sinking and Sourcing IO Cards

2 7440

why using negative supply for bentley nevada vibration system ?

2140

in transmiters(rose mount) how to check output 4-20ma ? and input 24v? i need exact explanation?

Adhunik,

2 7849

what is diff b/w neutron and ground?

3 6980

Post New Instrumentation Questions

Un-Answered Questions { Instrumentation }

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..

1741

Explain an adaptive / self-tuning controller’s major draw card.

2322

How to Calibrate Vortex Flow transmitter in field

1269

Draw symbols of the following :

1981

SOME OF YOUR QUESTIONS ARE NOT MAKING ANY SENSE SO TRY AND PUT IN A LITTLE BIT MORE EFFORT BEFORE YOU POST A QUESTION. WE WILL ONLY HELP THOSE WHO WE CAN SEE ARE TRYING TO HELP THEMSELVES.

2358

in mass flow meter what is drive friquancy ?

2093

What is intrinsically safe system?

1140

Draw a simple circuit for a well head control panel used to protect the well against fire, leak, blockage, ESD, & controls the operation of one downhole & one surface safety valve. Explain the operation and controls

1638

Which language of programing is popular? how can i learn it ?

2152

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

1968

Basically iam Instruemntation Engineer, but Iam interested in Instruments design engineering, so plz guide, is there any course, training or Softwres to become Instrument design engineer??.

2050

how pressure transmitter work, what is its principal to measure and how its generate signal. for pressure transmitterinstallation which precautions must be taken ??

1746

What is the function of solenoid valve in on/off & shutdown valve and why it is not used in control valve normally?

2019

what is the process to make control schematic ?

2244

How will you calibrate PID controller? explain with example.

2432

For More Un-Answered { Instrumentation } Questions Click Here