i want interview questions about PROCESS CONTROL INSTRUMENTATION , SENSORS AND TRANSDUCERS IF ANY BADY KNOW ABOUT THAT PLEASE SEND TO MY MAIL karumudi1003@gmail.com

8 Answers   Honeywell, Reliance,

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How to calibrate RC Feeder system in thermal power station?,If any instrument available to calibrate it,ple inform me. make:stock,

0 Answers   TATA,

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Q1: Consider part of a control loop, which excludes the transmitter, consisting of a process, a controller and a control valve which may be represented by two dead times of 0.5 min each and three exponential lags of 0.8 min., 1.0 min. and 1.5 min. respectively. We wish to express this system as an overall first order plus dead time (FOPLD) model ie gain, time constant and process dead time. (We will see later that this is often done, to simplify controller tuning). For this exercise, gain is considered to be 1.0. (A) If the transmitter is a flow transmitter whose behaviour can be described by a dead time of 0.2 min. and an exponential lag of 0.5 min. in terms of the overall dead time and overall first order lag how can the system behaviour be approximated ? Overall dead time = Overall time constant = (B) If the transmitter is a temperature transmitter with a temperature sensor in a protecting well whose behaviour can be described by a dead time of 0.7 min. and an exponential lag of 15 min. how can the overall system behaviour be approximated now? Overall dead time = Overall time constant =

0 Answers  

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State some of balance principle’ advantages?

0 Answers  

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What are the interlocks we have to check during the start up of LP/HP compressor?

0 Answers   Hamsco,

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Can anyone help me with the Question bank(objective type) for complete Instrumentation engineering,either a soft copy or a Hard copy(Book),or the name of the author ,or publisher.

1 Answers   Reliance,

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how to calibrate load cell

0 Answers   Siemens,

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Why mmwc unit is used?

0 Answers  

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you must show the examples application and give at least 4 types of transducer/sensors that can minimize the failure during the manufacturing of the resistors.

0 Answers   DEWA,

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what is the working principle of hydra step(electronic level indicator)?

2 Answers   Bengal Energy, Lanco,

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What is passive connection of instrument in different type of I/O module

1 Answers  

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what is pyrometer? which purpose it has to be used?

2 Answers  

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