what is the analog input , analog output , digital output, digital input geven to the MSSV , CBD, IBD , START UP VENT , BOILER FEED PUMP , AOP, CEP , ETC

1 Answers   Bharat Biotech, TATA,

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If Solenoidal valve works in manual mode but not in Auto mode. What should be the problem?

8 Answers   Bharathi Cement, Titanium,

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what is the diffrene between DCS System and PLC System

5 Answers  

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what is differences between singal acting and double action valve

1 Answers   Carlo Gavazzi, Welspun,

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what the differant between Wet Leg /Dry Leg

2 Answers   Sepam Group,

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1.what is the effect of vapour presuure in orifice plate flow measurement 2.which is more effective 2 pressure sensors or one single differential pressure sensor in orifice plate measurement 3.how to design a v/i converter and i/v converter 4.how many type of thermocouple are there 5.how many leads are there in thermocouple measurement 6.how pressure sensors are connected in level measurement in differential pressure method 7.what is the output of capacitive pressure sensor (ac or dc),how its o/p is signal charactarized 8.what is the physical meaning of discharge coeeficient,why it is calculated,orifice plate what is its value,why it is less than 1,Q at upstream is equal to or not equal to Q at downstream of orifice plate why?what is vena contracta in orifice plate 9.why rotameter is called variable area flowmeter,it can measure flow even if area is not varying,why it is made tapered 10.design a 10 bit counter ,which counter you will prefer 11.how to remove self heating error in RTD 12.which is more sensitive pt100 or pt50 13.why thermocouple are connected in parallel 14.what is lead contact error in RTD,how to avoid 15.what is P,PI,PID,PD controller,why there is no ID controller 16.what is override,split range,sequential,ratio,feedforward,cascade controller 17.why we moved from SR to JK and then JK to master slave JK flipflop,give correct reason 18.how to measure level of a closed container which contains vapour and liquid,remember no vapour gas should be leaked,so ultrasonic and capacitive is not an option,design another method 19.how to design horse race counter including sensors and signal conditioning element 20.what is bevelling

0 Answers   BARC,

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If you SOURCE your outputs from a PLC, would you have to make the output HIGH, or LOW, in order to switch an output ON?

1 Answers  

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how to commission furnace ( water heater)

0 Answers   Petrofac,

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How would i calibrate a new commissioned flow transmitter???

3 Answers  

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Hi all, I am Mohamed from Algeria, I'm a senior Technician qualified in instrumentation. I work in an international petroleum and gas company (SONATRACH: Separation of associated gas from crude oil. Production of condensate, LPG and re-injection of dry gas) within the regulation & Control instrumentation department.I am interested for working in Qatar Petrochemical Company (QAPCO) in Qatar.Now,I am seeking a position, which is an opportunity for me to put my experience to good use and actually participate in running on this company. So, Can anyone help how to contact this company? Thanks Mohamed, mahad8331@gmail.com

1 Answers  

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hi i want sov loop cheak from consol to field the operater given status to sov still no change, but MR room to sov ok so whats a problem and alreasy cheak all conection ok ?

2 Answers  

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How can I zero check of wet leg type DP Tx ?

6 Answers   ONGC,

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