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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 7811

Tell about your IFFCO plant visit.

2078

Explain Three way boiler.

2 7292

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

2519

Explain any simple temperature control system.

3 8830

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

2297

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

11 42094

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 8857

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

2281

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

3 10595

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 8721

how to replace the smart transmitter software

1 3764

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 11219

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

2322

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

2517

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L&T Instrumentation Interview Questions

L&T Instrumentation Interview Questions (36)

Un-Answered Questions

In visual basic, I can set the color of a cell with the .interior.colorindex property. How can I read the color of a cell before I change it?

619

What web sites do you feel use javascript most effectively (i.e., Best-in-class examples)? The worst?

938

Can a table have 2 foreign keys?

908

What is the best c++ ide?

1179

Explain when does an atoll start to form?

864

What are the interferences in cdma?

700

How many categories of data types?

997

Name some functions which can be used for debugging in r?

Can naive bayes be used for multiclass classification?

How to identify current user in ssrs report?

404

What is 'declaration page' in insurance policy?

1207

What is the use of setinterval() function in node.js?

493

What is roc?

106

Explain me what is file structure in wordpress?

183

hi I have done 3 yrs diploma in electrical engg after 10+2. I have 16 years of work experience into design proposals sales and engg application development in LV/MV swithcgear and sub station automation field. I want to apply for immigration to new zealand but I am not sure whether I qualify or not since I dont have a degree. Can anyone advice? Thanks Riz

2286