How can we check Zero of DP type Level Transmitter onside?

7 Answers   Birla,

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explane hart protocol? what is its advantages.

3 Answers   Jindal,

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can any one help me to get bel probational engineers sample question papers. I have applied for it.

0 Answers  

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Explain the difference between the types of input variables plc?

1 Answers  

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why orfice is not used for main steam flow calculation

0 Answers   OEG,

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What is hp & mp seperator .& what is its working principle ?

0 Answers   Chevron,

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In oil & gas industries and petrochemical industries, there are classification of zones like zone 0, zone 1, zone 2. Is there any differences in voltages or power supply supplied for the process instruments, control instruments depending on the zones

1 Answers  

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Foe selecting control valve if i have the min,normal & max data of flow rate,inlet pressure& outlet pressure,inlet tem.&density than how can i assure that these data are correct,pl. let me know if therew there is any method to check it.& also how we assure that the Cv we get from this data is suitable for valve for controlling require flow.

3 Answers   HPCL,

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what is preventive maintenance , explain with difination

1 Answers   Bapco Bahrain Petroleum Company,

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WHAT IS THE MASS FLOW FLOW METER

4 Answers   Reliance,

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why we use 4-20 mA to do calibration of the instruments.why we cant use 0-20 mA?

8 Answers   Emerson, IEM,

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Where we r using split range and ratio controller?

1 Answers   EID Parry,

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