🔍 Key Concepts

• Propeller arrangements on tugs and workboats • How thrust can be increased at low speeds • The difference between engine components and hull/propulsion fittings

💭 Think About

• Look at which options are parts of the engine itself versus parts mounted outside the hull near the propeller. • Think about what kind of nozzle would affect how water flows around the propeller to increase pushing power, especially for tugs. • Ask yourself: which item would most likely be found on the stern, around the propeller, rather than in the engine room?

✅ Before You Answer

• Identify which options are clearly internal diesel engine parts. • Identify which options are clearly related to firefighting equipment. • Consider which option describes something that surrounds the propeller and shapes water flow to increase thrust.