🔍 Key Concepts

• How diesel engine power output is controlled under varying load • Relationship between fuel quantity and engine torque in a diesel • Which components actually respond directly to load changes (governor, fuel rack)

💭 Think About

• Think about what changes inside the engine when a ship goes from maneuvering to full ahead—what does the governor adjust? • Which of these options would have the most immediate and direct effect on how much work each power stroke produces? • Which components listed are more ‘support’ systems rather than primary means of controlling engine load?

✅ Before You Answer

• Identify which option directly affects energy released in the cylinder each cycle • Eliminate options that mainly affect fuel supply/handling outside the engine rather than in-cylinder combustion • Consider how an engine maintains constant RPM under changing propeller load—what is actually being adjusted?