Question 148General Subjects - 1st Asst/Chief70% to pass
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
AI Explanation
The correct answer is C) The water level should be located in the upper section of the tank.
The reasoning is that in a properly functioning oily-water separator, the water level should be maintained in the upper section of the tank. This allows the coalescer bed (item 9) to effectively remove oil and contaminants from the bilge water before it is discharged overboard. Maintaining the water level in the upper section ensures that the oil and contaminants can be effectively separated and contained, rather than being discharged along with the water.
The other answer choices are incorrect because: A) The water level should not be in the lower section, as this would bypass the coalescer bed; B) The water level should be above the coalescer bed, not just slightly above it; and D) Some water level must be maintained in the tank for the separator to function properly.
Related Questions
#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 #149 The component labeled "A", as shown in the illustration would be identified as the _______________. Illustration GS-0175#150 The line labeled "C", as shown in the illustration would be identified as the _______________. Illustration GS-0175 #151 The function of item "7" shown in the illustration is to _______________. Illustration GS-0153