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Instrumentation Interview Questions
Questions Answers Views Company eMail

How much flow is passing through 6 inch line? There are no gauge, no any transmitters in line.

 3 3655

What is megering????

 2 9962

waht is difference between pressure transmitter and transuducer

Gasco,

4 4360



There are two chlorination tonners both are connected to two pressure swithes and the pressure switch is connected to SOV which operates the valve to changeover the tonner selection i.e if pressure one tonner goes low the other tonner should come in line if it is inautomatic selection design a circuit using relays ?

 706

what is input and output cards of plc needs to be hot swappable mean

 1 3687

why magnetic flow meter is not used in thermel power plant operation

JK Paper,

2 4036

How does milli volt is created in themocouple?

Jaypee,

2 3837

How does pyrometer works?

 1 4407



Why we are using temperature and pressure as a reference when measuring flow of steam?

Shell,

4 5807

What is Process portal A(PPA)?

ABB,

1 3783

How Many Slave Can be used in one slave ?

 2 2880

what do you mean by cathodic protection?

Saipem,

1 3574

what is Best Among SINK Or SOURCE Type Design In Digital Signal, Either Iput Or Output? WHY?Can any one..

Reliance, Accer,

986

what is the difference between transmitter and smart transmitter ?

Aditya Birla,

4 5474

what is loop folder?

Hyundai, Bapco Bahrain Petroleum Company,

1 17938

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Un-Answered Questions { Instrumentation }

sir,would you please send me the Hindustan petroleum corporation limited papers(HPCL).my e-mail ID is ujjwal_sharma1983@yahoo.com

1087

What are the types of control valves available

784

How to calculate P,I&D value in PID controller ?

873

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

827

Please asked me How calculate DCS controller memory.

1628




what are the different types of communication cables used in automation and what are the difference in the cables

2011

principle of automatic votage regulator

910

how to check earthing,what is minum ohms for proper earthing

830

how many types of preheaters are in cement industry & what r they can any body explain?

594

How to calibrate an pressure gauge with yantrika test bench?

1650

Hi Friends , i need one urgent help , i am preparing for M.tech entrance examination , i need some obejective questions related to instrumentation field. where can i get those ? can anyone help me pls ?

822

How a conductivity sensor & analyzer work at boiler, whats the principle & science is beyond this,How conductivity sensor sence & convert signal & move toward analyzer & analyzer show reading in percent? also what is temperature compensate option in conductivity analyzer

1614

What is Erosion in a control valve?

841

What is PDS and PDMS ?

958

What is eddy current? Describe the operating principle of proximity probe.

1098

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