what is upstream and downstream in liquid flow?

6 Answers   Thermax,

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what is difference between pressure,flow and level control valve.

3 Answers  

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whats the working of principal thermocouple

6 Answers  

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What is the difference between relative vibration

4 Answers   Desein,

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any thing about plcs?

4 Answers  

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What are the processes Variables?

4 Answers  

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what is moisture probe? What are there types? What is there working principle and how they works? guys this is one of technical question I had ask in interview. If you know its answer please let me know. The interviewers were more interested in microwave moisture probe, so if you find its any link please just forward me on my mail id.avinash1200@gmail.com Thanks in advance.

0 Answers  

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how u measure dp in dp tx? how u calibrate a dp tx?

3 Answers   Invensys,

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What is voltage regulator?

0 Answers  

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why we are using negative range like -750 to 0 mmwc in closed tank?and what is the reason can you explain clear?

2 Answers   Aarvi Encon,

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What is the difference between pt100, pt500 and pt1000 RTDs?

3 Answers   ICI Pakistan,

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In instrumentation standard we use 4 to 20ma for transmission , why cant we use 3 to 19ma ?

1 Answers   NSH,

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