Question 145General Subjects - 1st Asst/Chief70% to pass
Referring 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
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.
Related Questions
#143 Referring to the illustration, suppose the oily-water separator vessel compound gauge is showing an unusually deep vacuum for operating in the separation processing mode with the separator service pump running. The oil content is 8.3 ppm. What is most likely the cause? Illustration GS-0175 #144 Referring to the illustration, suppose after initiating the oil discharge mode, the oily- water separator fails to come out of the oil discharge mode in a timely fashion. Cracking open the upper sampling valve reveals the presence of water exiting under a positive pressure. What is most likely the cause? Illustration GS-0175 #146 If item "1" in the illustrated oily-water separator indicates an abnormally deep vacuum, which of the following conditions is the most probable cause? Illustration GS-0153 #147 Referring to the illustration, suppose after initiating the oil discharge mode, the oily- water separator fails to come out of the oil discharge mode in a timely fashion. Cracking open the upper sampling valve reveals the presence of oil exiting under positive pressure. What is most likely the cause? Illustration GS-0175 #148 When the oily-water separator, shown in the illustration, is in operation and processing clear bilge water, what should be the internal water level? Illustration GS-0153