Your vessel has run aground and upon taking fuel oil tank soundings, you find that a fuel tank level has increased. You therefore should suspect __________.
ā¢ Tank soundings and volume changes when a vessel is aground ā¢ How sea water could enter a fuel tank when the hull is damaged ā¢ Whether each option would realistically change the fuel level upward in a short time
ā¢ If your vessel just grounded, which type of problem could immediately let outside water into a fuel tank and make the level appear to rise? ā¢ Which options would normally happen slowly over time, and which would be associated with a sudden event like striking the bottom? ā¢ Think about the relative densities of fuel and seawater: if seawater enters a fuel tank, what happens to the overall level you would measure on a sounding?
ā¢ Eliminate any causes that would not realistically increase the tank level quickly right after grounding ā¢ Consider whether condensation or fuel quality issues would noticeably change the sounding level in a short period ā¢ Focus on the option that directly involves hull integrity and sea water ingress after grounding
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