Question 142General Subjects - 1st Asst/Chief70% to pass
Referring to the illustration, an oil/water separator is in the recirculation mode due to high oil content of the processed water outlet. What action may be required before the unit is capable of discharging overboard once again? Illustration GS-0175
AI Explanation
The correct answer is A) Flushing the oil content detector with clean water.
When an oil/water separator is in recirculation mode due to high oil content in the processed water outlet, it indicates that the oil content detector is not functioning properly. Flushing the oil content detector with clean water can help reset the sensor and restore its proper operation, allowing the separator to discharge the processed water overboard once the oil content is within the regulatory limits.
The other options are incorrect because they do not directly address the issue with the oil content detector. Flushing the bilges with an emulsifying agent or detergent (options B and C) may help disperse the oil, but it does not fix the underlying problem with the oil content detector. Cleaning the bilge suction strainer (option D) may improve the overall system performance, but it does not specifically address the oil content detector malfunction.
Related Questions
#140 Which of the following statements best describes the filtering ability of a fine mesh metal lube oil strainer? #141 Which of the filter/strainer units listed permits you to clean the element while leaving the system on the line? #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 #145 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