hiii.... can any one provide me previous years question paper of hindustan petroleum for instrumentation engineering???

0 Answers  

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hello i'am samad.Any one Can help me! How to calibrate Vaccum Transmitter DP Type range 0 - 50 mbar abs by hand pump calibrator.

4 Answers   Bharathi Cement,

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Tell me about PID Tuning and what is PID.

4 Answers  

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suggest a sensor to measure rapidly varying temperature?

1 Answers  

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What is the working principle of sox, nox analyzer?(opacity monitor) Otherwise how to measure the sox,nox?

1 Answers   Thermax,

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in natural gas indirect water bath heater,how to prevent the problem of backfire from firetube during ignition...becoz of this backfire performance of wbh is going low.

0 Answers  

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i feel sq. pipe is better than round pipe pls give comment for this. advance thanks for reply

3 Answers  

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How to calculate 47Liter H2 Gas cyilnder consumtion? Cylinder inlet Pressure is 200bar and Discharge pressure is 6.0bar. Flow is 100ml/min.For the above condition how many days one cylinder can be used?

1 Answers  

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kindly tell where orifice,nozzle,air foil,ventury used in flow measurement?

1 Answers  

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How does a single acting, spring return ball valve actually work? Does it require continuous air supply? 

0 Answers   Process Control Technologies,

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applications of 1-5v and 4-20ma?

4 Answers  

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difference between null and deflecting instrument.

5 Answers   ONGC,

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