🔍 Key Concepts

• Purpose and function of a lube oil sump tank in an engine system • Typical design priorities: capacity, structural attachment, internal fittings, and maintenance/inspection • Which characteristics are mandatory vs. optional or situational in marine engineering practice

💭 Think About

• Ask yourself: what is the primary job of the lube oil sump, and how does its design support oil collection, circulation, and stability? • Consider which choices describe a general design principle that would apply to almost all sump tanks, not just some special installations. • Think about which options sound like possible features versus those that are core functional requirements for safe and reliable operation.

✅ Before You Answer

• For each option, check whether it is a universal requirement for sump tanks or only a feature that might be used in certain designs. • Verify which feature is directly related to controlling oil movement and ensuring steady suction at the pump, especially in rough seas or during maneuvering. • Be careful with options that specify exact materials or structural arrangements (like welded seamless steel or being integral with shell plating); ask if those are truly required in all designs.