🔍 Key Concepts

• MARPOL Annex I requirements for handling oily mixtures in the engine room • Differences between bilge water, sludge, and general oily-water mixtures • Purpose of a unit that has a separator tank module, pump module, and an oil content alarm in the control room

💭 Think About

• Look at the labels in the illustration: does this system seem designed to handle heavy waste oil/sludge, or mixtures of water and oil from the bilges? • Notice the control panel: what does an oil content alarm typically monitor, and for what kind of overboard discharge system is it required? • Think about which type of equipment is usually made up of a pump module plus a separator tank module, installed between the bilge and an overboard discharge line.

✅ Before You Answer

• Identify whether the main function is to separate oil from water, or to process/store sludge. • Check if the presence of an oil content alarm/monitor matches MARPOL-required equipment for overboard discharge of treated bilge water. • Confirm that the flow path in the diagram goes from engine-room bilge sources, through the unit, and then to an overboard discharge or holding tank.