please send me hpcl placement papers

13 Answers   HPCL, L&T,

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how many parts of valve positioner?

1 Answers   Kentz,

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What is stripper & spilitter ? Diffrence in this.?

0 Answers   JSW,

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Pls.could any one Clarify the following with an example. 1.At What condition Close on Rise and Close on Fall Pressure Switch contacts are used. 2.If Pressure is abnormal as per set pressure,if connecting Terminal of pressure switch breaks,how the voltage extends to Relay base. 3.Are these contacts come under fail safe philasaphy.

1 Answers  

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why flow transmitter showing 2.2ma?

2 Answers  

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what is flow equation of kg/hr to m3/hr

2 Answers   Philips,

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A DP Endress and Hauser flow transmitter is always tripping pump at low flow. set point is 74 cubic meter/hr. Thorough impulse line flushing and zero calibration has been done, yet problem persists. What do you think is the problem and how do you rectify this fault?

5 Answers  

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

0 Answers   ADMA OPCO,

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To become an Instrument DESIGN engineer, is there any softwares or training to become Instrument Design engineer, plz suggest me, Iam very much interested in designing.

0 Answers  

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1.can you use SCADA instead of DCS,DCS instead SCADA 2.Difference between DCS and PLC,can their role be reversed i.e. role interchange 3.Difference between RTU and PLC

0 Answers   IOCL, Lakshmi Machine Works,

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In VVVF DRIVES VOLTAGE IS ALSO VARY WITH THE FREQUENCY. HOW? WHAT IS THE DIRECT FORMULA RELATING THESE TWO.

0 Answers   India Cements,

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Could anybody pls give ans of boiler 3 element control system?

5 Answers   Qatar Petroleums,

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