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Instrumentation Interview Questions
Questions Answers Views Company eMail

TEMPERATURE VARIATION FOR FREQUENTLY.

TVS,

2048

why we set -10 volt in vibration sensor output,why not +10 volt

Sabic, TVS,

3 24470

How does a strain gauge measure pressure?

2 5702

How can corrosion alter the accuracy and precision of a C- Bourdon tube pressure gauge?

1 3569

How do bending tubing provide better measurement than using tubing fittings such as elbows?

1939

How to get Cv of control valve having following parameter ,i.e inlet pressure 4.5kg/cm2 outlet pressure 1 kg/cm2 specific gravity 0.808

3 6745

how radio frequency level probes works with its controller ? what is its principle ? pls give me brief explanation?

1887

why generation of syncronized generator increases when frequency of grid is less then 50Hz & generation decreases when grid frequency goes up from 50 Hz, as comparision with set value entered in govering panel?

1 3842

Can anybody tell me application of PLC,DCS,SCADA.

Reliance,

3 9079

Hi..i am B.E. (elect.&comm.)..i m workini in a bio mass power plant as inst. Engg. I want 2 know about growth in big power plant sector..is this field is good 4 me ..i m electronics engg..? Plz plz reply..

Reliance,

2 5671

modbus and profibus communication difference?

1 10213

how does we calibrate a square root flow transmitter ,give an example and explain it step by step like range calculation , calibration hook up series connection , zero check , and how to apply pressure , and if not geting proportional output then what should we do ?

5673

In control valve there are two type of valve seat we can use metal to metal seat & soft seat.On this valve seat i have following doubt. 1)I have never seen practically the internal assembly of valve so my doubt is that basically weather the seat is soft seat or metal its basic MOC is same as valve body(SS or CS) only in soft seat we are using PTFE ring & place on valve seat & in metal this PTFE ring is not threr am i correct??????? 2)what are the common general rule for using metal to metal seat & soft seat,means its depend on process parameter like liquid,gas, steam & on valve leakage class.

1 2540

In case of Transmitter's(e.g.Ultrasonic Flow meter ) we have an normal practise of selction of upstream and downstream distance such as (20D and 5D ).can anyone please let me know whow to calculate "D" ?? i guess it refers to pipe thickness is t right ?

2 4744

a flow transmitter [range-0-400mbar] connected in process line. please explain me how to calibrate the flow transmitter , & how to do static error

L&T,

2281


Post New Instrumentation Questions

Un-Answered Questions { Instrumentation }

what are the definitions of input, output, command & signal according to instruments controlled by PLC using DCS System?

2118


Can Any body tell me about the Contact or Email id of any good Consultancy which help me to find a job in Instrumentation Field in India .I have Six years of Work Experience in the Same field.Please revert me back on shammi_gwalior@yahoo.com ?

1841


what is the reason while warning lamp is on while the engine is cranking?

2145


How to Calibrate Vortex Flow transmitter in field

1271


What is the use of temprature compensation?

1152


which type inter lock use in petrochemical refinery,and oil & gas?

3025


flow transmitter formula?

2810


sir, i preparing hpcl,ongc,barc,hal exams(instrumentation engg)pls send a placement papers

2329


Why thermo wells are used? What materials are used in thermo wells?

1119


1- Explain about HPM 2- What is the FSC and explain the configuration of FSC 3- explain the complete loop of vibration, how it works (field to control room) 4- What is the use of proxymitter? 5- During job your partner effected with H2S then what you have to do. 6- what type of gland packing uses when valve glind is leaking.

2812


full process of gas turbin?

2105


how to work MIL contol valve posistioner ?

2145


What is the use of GMV in turbine?

4435


what is wave length were using ?

1897


With N nodes and B branches what will have a network ???

2024