Instrumentation Interview Questions
Questions Answers Views Company eMail

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

2 4625

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

Qatar Petroleums,

5 11843

how to check the leak in thermowells

1 6236

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,

1809

which processor is used in dcs.

ABB, Wave Distillery,

1800

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

Kentz,

2 8256

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

Bosch, Eskom, Sabic,

1875

What is the working principal of Mass flow transmitter?

1 8221

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 13624

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?

1758

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 6503

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

L&T,

5 12591

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

1835

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 4595

How to check range of DP Transmitter

7 11539


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Un-Answered Questions { Instrumentation }

why we us isolation barrier in hazardous area how it works to protect the area and please clarify its current flow.

1493


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

1715


1. what is modbus cable? 2. what kind of communication we are using for the interface of DCS, ESD and Third party cabinets? 3. What is serial communication and peer to peer communication?

1651


diff between neutral ,ground,phase , earthing and shielding?

1847


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.

1899






Draw a group of instruments interlocked to a Pump & Motor?

616


what is the PC interface and software for connection to ABB logic module “ LM011-CE18RAC “ ( for Programming ) ??

3401


what would be the minimum flow rate that we can measure on rotameter..?

1599


IS there any effect of vortex in low pressure side of the transmiter after the orific in feed water line? if yes then what is the calculation?

1912


KAlman filter code for two dimension?

1591


Which products are available in the Mass Systemswitch and System Manager AC range?

1472


Why upper weighing limit of electronics balance is 90% of the total weighing capacity?

1644


How process line mpm calculation is done?

823


whatis range of marcury filled tempereture gague

1472


find the kp ki kd from the transper function G(S)=29.44s+04707/1.5349s2+s

1437