Please send me the sample question of Instrumentation of hpcl/iocl exam. my mail id hihi_kiholo@rediffmail.com

0 Answers  

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how to set calibration range in a DP transmitter to measure level for a closed tank and for an open tank,and also please explain me how to set calibration range for a DP flow transmitter in a line ?

1 Answers   CCL Products, IOCL,

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What is the difference between PLC and DCS?

3 Answers  

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wat are the interview questions asked in air india for post service engineer

1 Answers   AirIndia, Shree Renuka Sugars,

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wht is dcs architecture ? can u give example?

3 Answers  

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What is the electronic transmitter frequency.

1 Answers   CPCL, QAFCO,

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how can we measure the level measurement with the help of pressure gauge?

7 Answers   Reliance,

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Make a ladder diagram on LSL valve will close, on PSL valve will open and start the motor

0 Answers   CCIE,

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What is the basic difference between Modbus and CAN Open Protocols

0 Answers  

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in split range control valve,two valve should be in two different line and that should have some distance,and we have only one positioner feed back link.so how we connect one feed back in two control valves?if you have picture please forward me.my email id kb.syamkumar@gmail.com

2 Answers  

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if differential pressure created by orifice falls below vapour pressure of liquid flowing through it what will happen

1 Answers   BARC,

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Types of contol loops

2 Answers  

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