Question 16General Subjects - Assistant Engineer

The correct answer is B) Segregated ballast is dedicated clean ballast water introduced into tanks that are completely separate from cargo or fuel oil systems. This is the correct answer because segregated ballast systems are designed to keep the ballast water completely isolated from the cargo or fuel oil systems on an oil tanker. This ensures that the ballast water remains clean and uncontaminated, which is important for the safe operation and environmental protection aspects of the vessel. The other options are incorrect because they refer to segregation from other systems (engine room, sea water, bilge) which is not the primary purpose of a segregated ballast system on an oil tanker.