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L&T Instrumentation Interview Questions

Questions Answers Views Company eMail

Explain PID controller tuning & any one method used for it.

1 7702

Tell about your IFFCO plant visit.

2030

Explain Three way boiler.

2 7165

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

2437

Explain any simple temperature control system.

3 8668

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

2250

how to derive kg/cm2 to mmwc? complete derivation.

11 41604

for commissioning the DPT and Flow Transmitter , what kind of necessary activities we have to check and do? specially that orifice flange valve[ isolation valve}

1 8729

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

2236

In E&I diagram what is the meaning of rectangular box and circular box

3 10453

In RTU Panel we are having several Analogue & Digital Inputs /Outputs. We are recently facing some problems over Analog inputs , which are not updating properly (But Digital Input are updating normally) Can any one tell me from where the problem is creating , we have checked PLC CPU card, Analog Input card & we reconfigured ,But still the issue is there. Issue : 1. Sometimes Analog values are updating & sometimes not. 2. Analog values are not updating normally , showing some wrong Values 3. Total dead (0 value) Analog values are Level & flow measurement from the field instruments. (But in field the instruments are working normally & Displaying the values normally in local display unit) This problem we are facing in our Water Plant. If any one experienced this same problem or having any ideas related to our issue PLS send your valuable Answers/Replies...

6 8496

how to replace the smart transmitter software

1 3676

Why the Air Tank Accumulators required for the single acting actuators SDV's or BDV's as I see in some Schematic diagrams of ROTORK ??

2 11032

How to control flow variations in magnetic flow maters..... When i will provide proper earthing?

2272

For a diafhram 1.5 d =kn(p-p0) D4 Where d in deflection in inch k=constant n=no of capdule (P-P0)=Applied pressure in psi D In active dia at capsule. -1.5 d=k to p d being constant -1.5

2458

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L&T Instrumentation Interview Questions

L&T Instrumentation Interview Questions (36)

Un-Answered Questions

How can all organisms share the same 4 bases DNA and still be so diverse?

2653

what is the entire problem if dns server fails? : Windows server 2003

312

What is the purpose of uuid?

755

How to access the LINQ in Sharepoint 2010?

837

What are system integrators in Cloud Computing?

583

How does search engine perform? - SEO

1183

Once I have developed the com wrapper do I have to still register the com in registry?

1023

What are the standard ways of parsing xml document? Or what is a xml parser?

797

What if a State has its own overtime laws?

What is href target?

773

Will silverlight-based applications and content run on any web server? What are the benefits to running it on servers running windows?

What is the infrastructure of hardware needed to run the Robotic Automation Platform of Blue Prism?

341

Explain the difference between NameNode

883

What is the difference between reactjs and nodejs?

547

can anyone explain me the workflow of EJB.I have developed an app. in WSAD using an example that contains CMP and session bean.But i am not able to understand the basic flow between diffrent packages.

2307