what is start up vent valve ? why it is used in boiler?

8 Answers   ACC, Bhushan Power Steel,

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what is the difference between RS 232,RS 485,RS 422, how they different from each other

15 Answers   TCS,

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hye SAM acn u send your e mail id, so that i can solve my query through e mail?

0 Answers  

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What is the formula of vabration sesore. i mean how to covert mils to volt plz share if any body knows   very argent : my mai is merajalam143545@yahoo.com

0 Answers   Samsung,

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what is the different between plc and dcs ? I know full name of this two but I want to know what structure and working style and speed I/O capacity and controller difference?

2 Answers   L&T,

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what is positive displacement meter.

1 Answers   Takreer,

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what is the conductivity sensor output formula and what is the ph sensor output formula?

1 Answers  

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how to calibrate motorized operated valve?

1 Answers   Bilt, Jubilant, SRF,

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How we will check whether the proximity, which we have is either NPN or PNP, if no data sheet or manual or any details is available to us ???

1 Answers  

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What is the difference between precision and repeatability of any instrument. Why it is measured always in percentage

2 Answers  

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What is the working principle of Bentley Nevada 3300

1 Answers   SMIT,

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whats the abbreviation of IOP? is it instrument of power or input open problem?

0 Answers  

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