Instrumentation Interview Questions
Questions Answers Views Company eMail

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

3 4251

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??

493

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 8726

what is the difference between cold loop and hot loop

2 7816

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

4 12906

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

GNFC,

4 6907

in which application we use bigger size actuator

5 3833

diffrence b/w accuracy and precision?

HPCL,

4 4297

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

2 11321

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 8839

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

1200

what is control valve input and out put

Nirma,

9 9811

what is thermocouple output

IPCL,

7 5402

What is principle of ultrasonic level transmitter?

3 6307

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

984


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Un-Answered Questions { Instrumentation }

plz you help about Que paper of mahagenco previous your,any model paper relad to it{maharastra power genration}

724


Operational amplifiers

340


centrifugal compressor interlock? Tell me the parameter at which compressor will trip

568


detail of mass flow meter pricipal

615


Which standard of hazardous area classification used in India?

1421


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

439


Galvanizing.

369


how u choose thermowell lenght n pnumatic C/v size?

463


what is function of switch, and how is it work, explain with difination

533


OBJECTIVE TYPE QUESTIONS OF ANALYTICAL INSTRUMENTATION

7130


why we are using digital signals for I/O & how to measure this signals is getting or not ?

430


what is RTV function in in process control?

963


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

186


Please send me the sample question of Instrumentation of hpcl/iocl exam. my mail id hihi_kiholo@rediffmail.com

1658


what is the working principal of pribe

521