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Instrumentation Interview Questions

What is pipe schedule? What are all effects its having in the valve? how do we take care of pipe sch in case if the customer dint specify in the data sheet. What we need assume and in what basis?

6140

What is the difference between pneumatic and electro pnematic positioner?

TCS,

34198

What is difference between flame retardant & flame resistance cable? Among which type of cable is used for ESD & Fire and Gas system application?

7458

Related to control system, What is difference between 4-20 mA active & 4-20 mA pasive signal.

5764

While preparing the graphic diagrams trend display, 3 types of trends are prepared by Yokogawa system vender. These are for process variable, manipulated variable & set point variable. Why these 3 trends are required? Explain the purpose of these 3 trends.

3005

What is difference between “Fault Tolerant” & “Fault avoidance” PLC? Application where these system s are used?

3226

Why three wire is using with a RTD?

10524

what is difference between HART communication and BRAIN communication?

15578

Intools training

6091

Why do we floating DC in DC system.

2212

Why do we need to install hook-up line differential pressure type level transmitter when the differential pressure type level transmitter with capillary are available?

8226

How can we say that accuracy of measurement increases by using 3 or 4 wire RTD? because for example: If resistance of RTD element is say r ohms and Resistance of the cable from transmitter to RTD is R ohms And if 4 wire RTD is used, ____._____________________ R ohms | |_____._____________________ R ohms / \ / r ohms \ \ | |______.__________________ R Ohms | |_______._________________ R ohms Then the actual resistance measured will be: Total = r + R/2 + R/2 = r +R Ohms Note: r+R instead of r ohms. hence error

4045

what is Least Value of MICROMETER?

6102

Which of the following instruments consumes maximum power during measurement?

9977

is manifold required for an integral orifice meter?

3860

OBJECTIVE TYPE QUESTIONS OF ANALYTICAL INSTRUMENTATION

10088

NSV type probe stands for

1799

I have energy meter for educational project having 0.5s class but my friend need 0.2s class meter , which one is good for that purpose and what is the actual difference of that two classes , need very easy example also.??

826

what is cems analyzer explain with principle and drawing ?

1639

WHAT IS THE DIFF. BETWEEN SKIN TEMPERATURE AND PASSES TEMPERATURE..?

1898

Isometric drawings are generated during _________________ phase of a project

1450

how to calculate range of level transmitter?

1592

hey any one got the papers of SAIL and HPCL plz do help me by posting them to my mail ID's naren07_87@yaho.co.in, surenarendra@gmail.com

1299

which type of signal used in instrument?

8080

In Safe Guarding test what means by "Failed to Danger" ?

1452

What is PDS and PDMS ?

1538

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

1482

How d.p. Transmitter can be applied to close tank?

446

i want to find out iffco get test paper

11880

what is the criteria to decide conductor size of a cable ?

1117