Answer Posted / debabrata mahanta
it's pressure force due to vaccum
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plz give sample question paper of hpcl thank you shinde_murali@yahoo.co.in
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Study the attached ACS 790 AHU and boiler GUI and refer to the video on the software usage, catalog and the step by step document (page 9) to perform the following task: List in a table form the controllers and all their connected I/O for the boiler and the AHU.