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What is the diffirence between Earth and Neutral and What is the required normal voltage between earth and neutral
6 11098i want to know the interview format fot gail, instrumentation. pls answer me in habib.sami1003@gmail.com
3134How will u convert the mmh2o in mass or Volumetic flow rate in DP Flow Transmitter. Give me the Brief explain using the formula
1 16664i have 80cm water tank.how can i use DPT as level mesurment.pls give specs for that..? We have air comp.from that moisture comeout to one tank.i want to mesure level of water in that tank and then after operat one sov to dicharge water after high level.
1 4599Sir , i have completed my M.Sc In Instrumentation and presently working in Maintenance department 3 yrs Exp , is there is any possible for work in offshore ..
1806what is the meaning of potential free contact. difference between dry and wet contact?
GAIL,
6 95439Punj lloyd is coming in our Jadavpur Universtiy campus for campus placement. Please send me some hints about the writtend exam. My email id is subratafriends@gmail.com
2808Post New Instrumentation Questions
the pump holds on run indication into the dcs and filed local control panel remote push button condition operaton wrong like when the push button pushing conditions the pump is off and the push button release condition the pump is on totally opposite condition . And control room inside give the stop command into dcs just 1secon relay engage and again normal condition. How can I slove
Make Heater Process Logic.
Tr. Wiring for calibration.
Calculate the maximum pressure drop that can be allowed to occur across a control valve, so that we can prevent cavitation / flashing from occurring. Use the following formula: Δ P allow = Km (P1 – PvapourA) where, Δ P allow - the maximum allowable differential pressure for sizing purposes, or terminal pressure drop; Km- the valve recovery coefficient from the manufacturer’s catalogue; P1 - absolute inlet fluid pressure; PvapourA - absolute fluid vapour pressure at the inlet temperature; Use Atmospheric pressure = 101.3 kPa, P1 = 1200 kPa(g), PvapourA = 4 kPa, KM = 0.72
Describe the functions of the Operator Interface including the considerations related to alarming and display layout/configuration/layers.
I have got a call of IOCL interview for projects having 2yrs experience. What sort of questions should I expect in the interview?
Q- What are the application in which PNP transistor is preferred over NPN ?
what is easiest way to read STL language in PLC?
why is not useing in boiler skin thermocople
Who to difference between analog in & analog out in dcs?
what will the sending unit in the fuel gauge utilizes?
What is stripper & spilitter ? Diffrence in this.?
why we r opening HOT BYPASS valve during startup of a compressor?
In a gas over oil actuator, after the opening/closing of valve, how the gas is vented out? How does the hydraulic/gas circuit function?
why we are not using the turbine flow meter in the steam service?
