82. After cleaning the M/E F.O. heater you have assembled the heater and want to try out the heater before putting into use. Which is the correct sequence of operation of the valves? (1) Vent valve open (2) F.O. inlet valve crack open (3) When F.O. starts coming out of vent line close vent (4) F.O. inlet valve full open (5) F.O. outlet valve full open (6) Steam return and inlet valves slowly opened up (1) Vent valve open (2) F.O. outlet valve crack open (3) When F.O. starts coming out of vent line close vent (4) F.O. outlet valve full open 5) F.O. inlet valve full open (6) Steam valves slowly return and inlet opened up =ANSWERR (1) F.O. outlet valve crack open (2) F.O. inlet valve crack open (3) As the pressure gauge shows pressure open steam heating valves slowly (4) Fully open F.O. inlet and outlet valves (1) Open steam return and inlet valves (2) Open F.O. outlet valve first slowly and F.O. inlet valve thereafter
Posted on: Thu, 22 Jan 2015 09:30:50 +0000
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