Question 145General Subjects - 1st Asst/Chief
70% to passReferring to the illustration, suppose while in the oil separation processing mode, the oil content detector display screen shows 17.9 ppm and the oily-water separator is discharging back to the bilge water holding tank for recirculation. What is most likely the cause? Illustration GS-0175
AThe bilge water holding tank contents is excessively contaminated with oil.
BThe oily-water separator bilge suction strainer is excessively clogged.
CThe oily-water separator service pump is excessively worn.
DThe bilge water holding tank level is excessively high resulting in a high level alarm.
AI Explanation
The correct answer is A) The bilge water holding tank contents is excessively contaminated with oil. The oil content detector display screen showing 17.9 ppm indicates that the bilge water being discharged from the oily-water separator back to the bilge water holding tank is still excessively contaminated with oil, above the 15 ppm limit. This suggests that the bilge water holding tank contents are excessively contaminated, likely due to continued accumulation of oil in the tank. The other options are less likely causes, as they would not directly result in high oil content in the discharged water.
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