Answer / qamar

use for tight shut off purpose

how can we measure the pressure in underground cooling water pipeline by using pressure transmitter?what about the tapping position?

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What is mean by analytical instrumentation?

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When a field input to plc is coming from 400 to 600 meters and the input is in 24 V DC? So signal cable of which cross section i should select for proper signal to plc?

5 Answers   Exxon Mobil,

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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 Answers  

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What is difference between Isolator and Barrier ?

1 Answers  

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please explain about actuator action? direct action & return action ?

1 Answers  

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what is a device net.

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How much voltage we get between two wire of 4 to 20 ma output? Is this voltage up or down respectvice to 4 - 20 ma ?

9 Answers  

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What is loop checking ?

10 Answers   Kharafi National, Petrofac, Samsung,

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What is profibus?

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what is the relation between flow and pressure.for example relationship between level and pressure is p = phg like that i want ans for this question.and also how to calculate orifice sizing and flow transmitter. pls some one ans for this questions.

3 Answers   Orchid, SRF,

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relation between level and differential pressure.

3 Answers  

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