Instrumentation Interview Questions
Questions Answers Views Company eMail

what is the name of thermocople element cable from field to pannel end?

3 4226

when the instrument tapping on pipe line is located below and transmitter is located above the tapping point for liquid service transmitter, what should we do, is there any additional drain valve is required??

478

when the instrument tapping on pipe line is located below and transmitter is located above the tapping point for liquid service transmitter, what should we do, is there any additional drain valve is required??

2 8591

what is the difference between cold loop and hot loop

2 7691

why we use 24v dc in instrument rahter than 230vac????

4 12673

why we use 0.2 to 1.0 kg/cm2 output in control valve

GNFC,

4 6820

in which application we use bigger size actuator

5 3804

diffrence b/w accuracy and precision?

HPCL,

4 4271

can we connect instrument earth pit to electrical earth pit, if not why?

2 11162

If we interchange HP and LP tapping in drum level measurement and reverse LRV & URV correspondingly.What is the difference between the normal tapping(HP,LP) and reversed tapping(LP,HP)?

2 8709

What is Droop? What is Step/Gradient Limiter in Turbine Governor control?

1194

what is control valve input and out put

Nirma,

9 9513

what is thermocouple output

IPCL,

7 5366

What is principle of ultrasonic level transmitter?

3 6283

what is formula for calculating flow if i have pressure and pipe diameter?

978


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Un-Answered Questions { Instrumentation }

What is Difference between Bench Set & Operating Range of Control Valve?

1838


what diffrence b/w plc s7200,300,400

507


for oil & gas industries which zone is normally preferred? why? give its example?

460


how to calibrate Necleuonic level transmitter.?

533


how can leve transmetter calibate in feild .and also put cv and flow plz .....

611


Punj lloyd is coming in our Jadavpur Universtiy campus for campus placement. Please send me some hints about the writtend exam. My email id is subratafriends@gmail.com

1333


what are the different types of communication cables used in automation and what are the difference in the cables

1529


1.can you use SCADA instead of DCS,DCS instead SCADA 2.Difference between DCS and PLC,can their role be reversed i.e. role interchange 3.Difference between RTU and PLC

859


what is scale factor of proximitor & unit of the vibration.

498


hi! i want to know about mpse exam.

645


What is critcal speed. what is resonant frequency. why we want to cross crtcal speed on higher RPM (early).

541


field bus transmitter calibration procedure tell me

214


How will you calibrate an interface level trol/normal level trol in line and in w/s?

544


What are the logic behind 2x2 and 2x3 logic and more when ask in interviews

2228


Give Detail information about plc,dcs,and scada system?

187