A turbocharged and after cooled diesel...

Question 1 / 270705eccefa2bacbc34ba4d47b0d

Question 1 of 270705eccefa2bacbc34ba4d47b0d

A turbocharged and after cooled diesel engine can over speed due to __________.

Question 1 of 27070

A turbocharged and after cooled diesel engine can over speed due to __________.

🔍 Key Concepts

• Turbocharger operation and how it affects engine air supply • What can cause uncontrolled fuel or combustible vapors to enter the cylinders • Difference between problems affecting speed control vs. combustion temperature/efficiency

💭 Think About

• Which option could introduce an additional, hard-to-control fuel source into the engine air path? • Which choices would mainly affect engine performance (power loss, rough running) rather than causing the engine to run away to excessively high RPM? • Think about how a diesel engine controls its speed: is it by air or by fuel, and which option interferes with that control?

✅ Before You Answer

• Identify which option directly adds fuel or combustible oil mist into the air entering the engine • Eliminate choices that would more likely cause loss of power instead of overspeed • Ask: does this condition bypass or defeat the governor’s ability to limit fuel input to the engine?

Question 1 of 27070

A turbocharged and after cooled diesel engine can over speed due to __________.

air in the hydraulic governor

high ambient air temperature

oil leaking into the turbocharger compressor end

insufficient piston ring blow-by