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Instrumentation Interview Questions
Questions Answers Views Company eMail

please tell me how maintainence person shifted to good epc company/design company


i want to know for good instrument engineer or success how many software knowledage required & from which university


can i get model question papers of mahagenco exam?

MahaGenco, MSGEN,

11 15686

How will you select suitable Instrument for Process line/Tank/Vessel?

4 4640

What is the logic a Transmitter control a Control Valve? How the signal going to the Control valve? What are systems/Panels/cables/signal used to control valve from Transmitter?

3 7288

defffrence between instruments and instrumentation

8 27457

Why shield is not connected at both end.

5 10795

what is see back effect?

9 15112

Why 24VDC power Supply is used as standard for all loop powered transmitters?


8 22279

what is diffrence between cascade & three element system.

3 9318

in the pipe line if the control valve fails to respond to controller action,by what means we can stop the flow in the pipe line ?

9 6536

can u please tell me the different types of valve uses and wt purposes it is used ~!(controlling the flow other than that which valve should be used in what place)

2 5073

What should be the stanchan Height for installation of Smoke detector & toxic gas detector in field,according to qatar standard

2 4740

What is basic of instrumentation

8 9196

please help me to get the below mentioned quires,which i have to submit for my client.[INSPECTION TEST PLAN] 1]I.T.P for Calibration of all instrument. 2]I.T.P for SS tubing. 3]I.T.P for Fire & Gas devices. 4]I.T.P for CCTV & telecommunication. 5] I.T.P for loop checking.

1 4883

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Un-Answered Questions { Instrumentation }

principle of automatic votage regulator


What are the maximum packet size of: a) HART b) Profibus DP c)Profibus PA d) DeviceNet e) Foundation Fieldbus


There are two chlorination tonners both are connected to two pressure swithes and the pressure switch is connected to SOV which operates the valve to changeover the tonner selection i.e if pressure one tonner goes low the other tonner should come in line if it is inautomatic selection design a circuit using relays ?


Why MUX JB's are using only Temperature Element in Fundation field bus?


Lux meter is the measuring device to measure the lux level of lighting fixture. in industrial sector two types of lighting fixture is being used as street lighting purpose 1. HPSV (Sodium) and 2. HPMV (Mercury). HPMV having white light which is an combination of red, blue and yellow colour, while HPSV haivng Yellow lighting. in HPSV red & blue colour will be absent. during measurement of the lux level of HPSV and HPMV fixture. 1. Lux meter can measure the actual lux level of both fixture? 2. or it will show false reading for HPSV fixture light as it has only yellow light present. please give me answer


I m appointed as an automation trainee engineer in small firm in that I am only the one , my company give me a project on s7-200 as i m beginner I don't know how to program so please send me the helpful site so that I complete my project before deadline....please help me out in this critical situation.


What is hp & mp seperator .& what is its working principle ?


What is the difference between conductive lined pipe and conductive unlined pipe? Why do we see that?


State bernoulli’s application.




where uses EXe /EXd/Exo/Exn/Exp/Exq/EXia


Draw a wheatstone bridge circuit showing supply, meter and 3 wire RTD connection


What is the use of control cable?


you must show the examples application and give at least 4 types of transducer/sensors that can minimize the failure during the manufacturing of the resistors.


What is force balance principle? State some of its’ advantages.