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Instrumentation Interview Questions
Questions Answers Views Company eMail

can anybody tel me how a vfd or any field instrument communicates/interface with plc/scada/cs.

Honeywell,

2081

1)unmovable objects have frequency or not?if that object have frequency,how do we measure and transmit? 2)how do u measure the continuity without multimeter? 3)we put 24volt dc supply in railway track how many distance it is traveled without voltage drop?

1 3075

Consider a level troll. i am getting a correct value in 4mA and 20mA. the value in the middle(30 to 60%)is disturbed and i am not getting the appropriate value. what is the solution to normalize the level and to get the correct value..

KNPC,

2 6286

how to measure temperature from resistance of rtd?and how to measure temp from voltage of thermocouple?is there any formulas?

3 10537

WHAT IS THE DIFFERENCE BETWEEN DCS & PLC.

Reliance,

9 14305

1.what is beta in control valves? 2.what is the condition followed by light in LASERs? 3.1kg/cm2=?psi 4.Integral action reduces what? 5.about vena contracta 6.a simple RC circuit 7.thermistor material's temp coefficient of resistance 8.if wave passes through the thicker area of a chord to a thinner area what changes will occur to wavelength? 9.if 4-20 mA represents 0-10 kg/cm2 what will be the current when pressure is 5 kg/cm2.................

Lurgi,

2368

Pl send the model question paper of mahagenco account officer post

MahaGenco,

2757

if in a level tx height is given, how u calculate the ranges of the tx?

Bombay Rayon Fashions, Invensys,

2 7721

how u measure dp in dp tx? how u calibrate a dp tx?

Invensys,

3 7815

what are the problem's will accure in dcs or plc hadware and what are the solution for it?

2 5562

whey we conect ammeter in series and voltmeter in parallel in circuit

1 8824

On LPG sphere tank we used LIT for level indication.High side port is connected to the bottom of the tank while low side port connected to the top. I would like to know how to fill the glycerin on its low side with two condensing pot installed,one from top and the other one for its drain line.Please I need your expertise...thanks

1 5846

HI, can anybody give details about GAS TREATMENT PLANT CONSTRUCTION,as INSTRUMENTATION ENGINEER what are the responsibilites.what are the instruments mainly instrumentation engineer will deal with

GSM, IOCL,

2091

how magentic flow tx. vortex flow tx & ultrasonic flow tx works and its prinicle?its callibtration prosedure?

1 4683

what is dry leg and what is wet leg?

3 24759


Post New Instrumentation Questions

Un-Answered Questions { Instrumentation }

what is the imbustion control loop

1881


Full form of KKS when use DCS.

3153


PT RTD Range: -200 to 500 degree celsius If I configured in DCS Lower range and Upper range . In face plate it shows red colour due to overa range how was the characteristics look If the temperature is more than operating range. how was the characteristics look . whether its in Resistance vs Temperature curve is Linear or Non linear

1956


what does the ratio 800-400-300-200/1-1-1-1-1 in the specification of current transformer indicates?

2532


Dear Sir/Madam,im going to attend Hpcl written exams on feb 17th in instrumentation stream..can anyone send me the HPCL model papers and pattern of HPCL ....i ve not yet attended anything in HPCL...so i dont know how it comes...so just i need some model test papers and pattern ..pls help me friends...

2116


NSV type probe stands for

2385


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

2022


What is the advantage of using locally fabricated hook ups over Pre fabricated hook ups in process instrumentation?

2037


why would you like to join our company

1365


Linear amplifier.

2015


Hook up resistance decade box to temp.transmitter.

2286


What is frequency factor in massflow meter? When using frequency output?

1862


what is the calibration procedure for transweigh make weigh feeder?

4020


what is interlock system and why we use of this?

2034


䑰ҕ䔈ҕ䖠ҕ䘰ҕ䛀ҕ䝐ҕ䟐ҕ䢐ҕ䥐ҕŹ

1952