Answer Posted / sindhu

its because the flow rate is proportional to square root of differential pressure.

Difference between 2-Valve Manifolds, 3-Valve Manifolds and 5-Valve Manifolds 3 with diagram

3107

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When doing a liquid seal on a differential flow transmitter , most of the time the sealing liquid will be heavier then the process fluid. For wich application will the sealing liquid be lighter than the process fluid if transmitter is mounted below the process line.

1818

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1.what is controller proportional gain 2.what is the controller intergral action time. 3.A proportional plus derivative controller that has a proportional band of 20% and a derivative action time of 0.1 minutes. Construct the shape of the output waveform for the triangular input if the input rises and falls at the rate of 4 units per minute.

2684

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I have completed B.E. Instrumentation & control in 2009. i have 3 year industrial job experience in chemical plant.now, I want to join M.E. in external. so, Plese say easiet way and good institute name.

1900

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what diffrence b/w plc s7200,300,400

2068

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What is mean by analytical instrumentation?

1813

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can any one explain in which term we are flow flow is it volumetric r is it mass? and y

1924

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How oil line flow measured?eplain about instruments used and working principle?

2059

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What are the type of bonnets in the control valves?

1860

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Definition of reverse and acting controllers:

2312

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on interface level transmitter model(RTG3302-EMERSON) What is threshold valve how can we select correct threshold value T1,T2,T3,T4 When interface water & hydro carbon

2149

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Please send me the sample question of Instrumentation of hpcl/iocl exam. my mail id hihi_kiholo@rediffmail.com

3205

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Why even multiple power supplu r used in instrumentation system?

4978

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1.what is the power consumption of three element drum level control in sugar industries? 2.how to reduce that?

1640

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What are primary elements of measuring pressure?

1281

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