To successfully reduce an excessively high...

Question 1 / 270705eccefa2bacbc34ba4d47b4a

Question 1 of 270705eccefa2bacbc34ba4d47b4a

To successfully reduce an excessively high diesel engine exhaust gas temperature, you should __________.

Question 1 of 27070

To successfully reduce an excessively high diesel engine exhaust gas temperature, you should __________.

🔍 Key Concepts

• Diesel engine combustion and exhaust temperature – what makes exhaust gas temperature go up or down • Engine load vs. temperature – how does reducing the load change exhaust temperature? • Effects of fuel quantity and timing on power, efficiency, and heat

💭 Think About

• Think about what happens to exhaust gas temperature when an engine is overloaded and working too hard. What operating change brings it back into a safe range fastest? • Which options would add more fuel or heat to the cylinders, and which would reduce the amount of heat energy being released? • How does changing fuel timing compare to simply changing how hard the engine is being worked?

✅ Before You Answer

• Identify which choice directly reduces the work or torque demand on the engine. • Eliminate any option that would increase fuel delivery or tend to increase cylinder pressure and temperature. • Consider which action is normally recommended in operating manuals when you see high exhaust gas temperature alarms.

Question 1 of 27070

To successfully reduce an excessively high diesel engine exhaust gas temperature, you should __________.

reduce the engine driven fuel pump outlet pressure

retard the fuel injector timing to reduce power

increase the fuel rack setting

reduce the load on the engine

Question 1 / 270705eccefa2bacbc34ba4d47b4a

Question 1 of 270705eccefa2bacbc34ba4d47b4a

To successfully reduce an excessively high diesel engine exhaust gas temperature, you should __________.

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Question 1 of 27070

To successfully reduce an excessively high diesel engine exhaust gas temperature, you should __________.