.how does CSADA systems display the process variable value?

2 Answers   Empower,

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can any one help me to get bel probational engineers sample question papers. I have applied for it.

0 Answers  

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in current transmitter why we use 4-20ma ???

2 Answers   IMCO, IOCL,

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purpose of absolute ppressure transmitter applcation?

1 Answers  

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Why we use mmwc unit for pressure

3 Answers  

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i am going to attend ongc exam this coming june for Graduate Engineer Trainee post if anybody knows the question pattern or have experience plz share it with me

3 Answers   ONGC,

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why t/c is connected parallel and what is the purpose of it

2 Answers  

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What is the function of positioner in control valves? does the control valve operate without positioner?

3 Answers   Hofincons,

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In split range control, we will control 2 outputs with time interval. Eg :(with 4-20 ma signal, for 4-12 ma we are operating one control instrument like valve & for 12-20ma we are operating other control instrumet (other valve). If we get a signal of 15ma to first instrument (Valve 1), what will happened to the first valve, and if we get signal above 20 ma to 2 valve what will happened ?

3 Answers  

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What is transducer

4 Answers   IFFCO, Jindal,

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What is a PID controller and how can it to applied to our everyday life?

4 Answers  

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what is the conversion factor for nm3 to kg/hr in air flow

4 Answers  

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