Instrumentation Interview Questions
Questions Answers Views Company eMail

What is the Differance between Graphics And SCADA Graphics? SCADA Graphics have less access?

Honeywell, Thermax,

3 7600

what is the difference between auto tuning and manual tuning of controllers(eg:PID,PI,PD CONTROLLERS )

GATE,

2 11028

Why hunting will occour in control valve?

6 44770

what is meant by Valve reversibility?

2 4447

what is meant by turn down ratio?

Avant Garde,

3 10400

what is IPS (instrument protective system)?

2 13454

how to calibrate control valves & power cylinders & ultra sonic level transmitters

ABB,

1572

how to know power plant process with corresbonding laws&thoeries

Bhel,

1 4417

for indiacation of turbine(china) bearing temperature what type of sensor will be used(i.e. rtd or thermocouple or themister ) ? why it is ? i need clear explanation ?

2 5155

I want measure the volumetric flow of gas in waste heat recovery Boiler?Tell me how and which type of instruments required. Plz mail me:naba02222@gmail.com Sam please post the answer .

1545

Why all the drains(Gland sealing,ESV,Casing inlet etc) are directly connected to the flash tank instead of hotwell of the condensor in the power plant? My Email Id:naba02222@gmail.com

ABB, Jindal,

1849

define SIMULATION a and what is the need of it

Siemens,

3 7130

define COMPENSATION??

Bosch,

4 7068

what is radar type level transmitters and its basic principle and how to calibrate it

ABB, Inovonz,

4 19128

Can combine control system for Emergency control system (ESD)and Fire & Gas System ( F & G) is possble to built and offer to client? Can such system is as per Norms in India?

1545


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Un-Answered Questions { Instrumentation }

, Instrument Index, P&ID review, I/O schedule, datasheet, DCS / Analyzers specifications, loop diagrams, hook-up drawings.

7537


What is the difference between modbus,fieldbus & profibus

1860


what is controlling card in dcs? how u measure dcs memory?what is bus in dcs?how u know dcs speed n ehternet speed?

1485


how to calibrate electro pneumatic positioner 8013 mil controls ltd ?gsr

7430


what is insdustrial vibration.who it works. give atleast 2 types of insdustrial vibration

1555






What is wet leg condition and why is it used?

1540


What is modbus?

657


what are the values of fuel flow rate in various places in boiler.

1224


we have a s-5 simense plc having op7 .recently on op7 showing error 1.plc not present 2. DB error frequently. can u have any solution . please send me.

2143


How does your previous experience relate to the job you are applying for ?

1545


how can use ram

1468


How to calibrate Toxic gas detector?

1229


TECHNICAL/ARTITUDE

1711


If P will increase then what will happen with PID?

5199


Explain how thw analog to digital converter works with the circuit diagram

2170