🔍 Key Concepts

• Air supply vs. fuel supply effects on diesel engine power • How turbocharger problems usually show up (gradual vs. sudden change) • Typical causes of sudden power loss in a running diesel

💭 Think About

• Which of these conditions would most likely develop gradually over time, and which could cause an immediate change while the engine is running? • For each option, think: does this mainly affect how much air reaches the cylinders, or how the fuel is delivered and burns? • Which condition would most directly and suddenly reduce the amount of usable energy in each power stroke?

✅ Before You Answer

• For each choice, ask: would this usually cause a sudden loss of power, or a slow, progressive loss? • Consider which option most directly interferes with the effective combustion process in the cylinder at the moment it occurs. • Eliminate any option that is more likely to cause secondary symptoms (smoke, fouling, overheating) before a distinct sudden power drop.