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BALLASTING SYSTEM
CHAPTER 7 MAINTENANCE ADMINISTRATION

Engineering Administration - Administrative Structural engineering guide book
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Admit ballast water only to those tanks that are designated for ballasting. Be sure the tanks are empty of fuel oil before you add ballast. After you have used water ballast in any tank, remove as much water as possible before you fill it with fuel oil. Use the lower level suction lines for that purpose. If your ship suffers collision or battle damage, the damage control aspects of the your job may suddenly become vital. To make stability calculations, damage control central must have accurate information on the distribution of all liquids carried on board. To maintain or improve stability, they may order the immediate transfer of fuel oil, feedwater, or other liquids. If you are the oil king during such an emergency, you will not have time to learn your job or to catch up on details you may have  forgotten  or  overlooked.  You  must  ALWAYS know how much liquid is in all tanks and exactly how the  fuel  oil  or  feedwater  transfer  systems  must  be  lined up to shift liquids from tank to tank. 6-11







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