🔍 Key Concepts

• heat transfer from the exhaust manifold to surrounding spaces • effects of high exhaust gas temperature on nearby equipment and spaces • relationship between jacket water / cooling systems and engine-room conditions

💭 Think About

• Which part of the engine (or engine room) is directly affected by a very hot exhaust manifold? • If you cool the exhaust manifold, what happens to the amount of heat radiated into the engine room? • Look at each option: which one logically follows from removing heat from the exhaust manifold surface?

✅ Before You Answer

• Does the choice you are considering clearly involve removing heat from the exhaust manifold area? • Ask whether the option would be achieved by lowering or raising temperatures and if that matches what water cooling does. • Eliminate any options that would require more heat in the system rather than less.