🔍 Key Concepts

• Exhaust gas temperature as an indicator of engine condition • Relationship between cylinder combustion quality and engine balance • Which cylinder parameters are directly reflected in changes of temperature between cylinders

💭 Think About

• Ask yourself: What changes first and is easiest to compare between cylinders—power, fuel burn, or a more general measure of how well each cylinder is working? • If one cylinder’s exhaust temperature is much higher or lower than the others, what does that usually tell a marine engineer about that cylinder? • Which of the options is a broad overall indicator, rather than a value that normally requires calculations from several measurements?

✅ Before You Answer

• Compare which option best matches a quick diagnostic tool used while the engine is running • Think about which choice is normally determined by calculations and instruments, not just by reading temperature • Make sure the option you pick could be assessed by comparing temperatures between cylinders rather than needing separate flow or torque measurements