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Instrumentation Interview Questions
Questions Answers Views Company eMail

how to measure low temperature(<100 dec celsisus) with non condact sensor

2 5524

Could anybody pls give ans of boiler 3 element control system?

Qatar Petroleums,

5 13603

how to check the leak in thermowells

1 7173

If i have 4 Allen Bradely make RS logix 5000 PLC and for viewing that we are using 4 RS view SCADA for 4 different packages. Now, I will want to view two packages on only one SCADA. Then how i will do it?

Essar, Reliance,

2330

which processor is used in dcs.

ABB, Wave Distillery,

2214

how to do loop checking pls email to shanavaska2000@yahoo.com

Kentz,

2 9712

what step is taken for ESD ( emergency shut down) in DCS REPLY to hashimka20009@gmail.com

Bosch, Eskom, Sabic,

2271

What is the working principal of Mass flow transmitter?

1 9136

I have one DP transmitter of range 0-500mmWC i have to calculate its range in M3/hr for flow measurement so whats the formula.

ABB, TICB,

4 15114

1. For Steam drum level signal, why do we compensate with drum pressure signal? 2.For main steam Flow signal is comensated with main steam temperature signal and main steam pressure signal why?

2192

Please anyone answer my question, what is the difference between single acting and double acting control valve, in what condition we better choose single acting rather than double acting

2 7612

In Increasing temperature why thermocouple used and RTD is not used. Both RTD and Thermocouple have in Range of uses.

L&T,

5 14471

what is commisioning procedure,2)what is is the main work in commisioning in the field tx to dcs, plz send me detail

2262

Can we place a Control Panel in Hazardous area Group IIC ? If 'yes' then is there any approval required? If 'yes' then there is any specific IP rating or any standard required? If 'Yes' What is MOC of control panel?

2 5571

How to check range of DP Transmitter

7 13420


Post New Instrumentation Questions

Un-Answered Questions { Instrumentation }

I have 0.75mm sq multicore cable (IS type) , can use instead of same type but 1.5 sq mm cable ? Note : The distance is around about 150 meter.

1519


what is the difference between Cv and air consumption? why the customer needs Air consumption details?

1939


what is the process to make control schematic ?

2195


Boolean algebra

2121


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

2446


What are different types of cable?

1054


why orfice is not used for main steam flow calculation

2069


in valve is constructed as per SME B 16.34, then which standard is used for fire testing of valve?.

1960


Q-Explain the different load conditions that will produced different offset which may or may not be acceptable to thhe control function

2151


What is wet leg condition and why is it used?

1984


For what reason would you possibly be compelled to make use of a Smith Predictor. Explain the idea behind the operation of this device.

1887


State some of balance principle’ advantages?

1142


Where are oxygen analysers installed in cfbc boilers? What are their usual readings?

1489


why we use cascade control and feed forward control in 3 element drum level control measurement of steam drum .what is cascade and feed forward control system ?give example .

2832


Hello to all....I am an Instrumentation Graduate and i am passed out in this year only.. I am unable to find the job in my core instrumentation.. so any boby tell me how to and where to search the job....please...and also tell me i there are any courses offered in the instrumentation stream so i can do it... you can send your suggestions to my mail-id i.e Ganesh20084u@gmail.com ... please..

1945