Answer / suresh kumar

sir, iam suresh and i had completed my diploma in chemical
engineering in 2006. i want to write hpcl exam, please send
me previous papers.

Answer / ranjana chavan

please email me hpcl &gail question papers if availble as a
part of your contribution in my career
email @ chavanranjana@rediffmail.com

Answer / kingsly

CAn someone pls mail me a copy of hpcl question paper too..aptitude and technical..im in civil eng..it'e urgent..plsss

kingslyjayanthan@gmail.com

I want to use 1/2 inch SS316 tube in my high pressure & temperature (64 kg/cm2 & 500 deg C)after condensate pot in pressure tranmistter. 1) Is it possible to use 1/2" ss316 tube in high pressure and temperature line. Tube manufacturer is local vendor. 2)On sarting the plant, We need to do system fluse that time condesate is not in the condesate pot so steam is directly contact with the tube. We have no exact calculation to know our tube is ok or nor at this time. pleae,reply.

1 Answers  

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3 Answers   Engineers India Limited,

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how commission a transmitter evev plant is already running

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1. What means HART communicator / where it is used / how to use it? 2. Types of Thermocouples and its temperature ranges / output of thermocouple? 3. Types of RTDs and its temperature ranges / output of RTD? 4. Idea about Temperature Transmitters? 5. Difference between Analog and Digital signals? 6. Difference between “2 wire” and “4 wire” system / instruments? 7. Difference between “Potential” and “Potential free” contact? 8. Types of flow meters / transmitters? 9. Types of level transmitters? 10. Difference between “Power/Control” cable and “Instrument” cable? 11. What means “shield” and “screen” in cables / how it is useful? 12. Draw a schematic of closed loop circuit of flow / level / pressure / temperature? 13. Idea about calibration of Control valve / positioned / I/P? 14. How to bypass a digital/analog signal in PLC/DCS by hardwire and software?

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