Answer Posted / rajesh.

Potential contact means voltage is present on the point. As and when this point is make contact with another point the current will pass and circuit will draw current to load. Example relay contacts, electrical contactors etc.

Give 2 application of quartz crystal used for process parameter measurement.

1994

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A flange is used for instrument connection for a system with a design temperature of 316C (600F) and a design pressure of 1000 kPa (145 psi). What is the class rating of the flange to be used for this application? Explain your answer

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what is the difference between -24 : +24 & 0:24 and where it use?

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plz you help about Que paper of mahagenco previous your,any model paper relad to it{maharastra power genration}

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Sir,I am going to sit for IOCL written test exam. recently.Can anyone tell me the name of 'Objective type Question Book on Instrumentation Engineering ' which will help me. Pl. mail to bidyut_71@rediffmail.com / bidyut.saha2008@indiatimes.com / bidyut.saha09@yahoo.in

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our kks tagging is crossing more than 12 character please suggest how to take tags in the DCS

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how to calculate the total flow in square root

2377

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how to turbine speed measurement?

1562

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steps for installing orifice plate?

1830

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What are de-saturators?

1217

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How it the difference between force balance system and dispalacement balance system?

2075

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what is function of SCADA , and how is it work, explain with difination

2346

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Explain Gas Turbine startup and shutdown sequences

4298

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Can combine control system for Emergency control system (ESD)and Fire & Gas System ( F & G) is possble to built and offer to client? Can such system is as per Norms in India?

1971

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what is the diffrence between pressure safety valve & pressure relief valve....pls

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