If a diesel engine continues to run after...

Question 1 / 270705eccefa3bacbc34ba4d47e05

Question 1 of 270705eccefa3bacbc34ba4d47e05

If a diesel engine continues to run after attempting to shut it down, the probable cause is __________.

Question 1 of 27070

If a diesel engine continues to run after attempting to shut it down, the probable cause is __________.

🔍 Key Concepts

• Diesel engine shutdown methods (fuel cut-off vs. air cut-off) • How diesel combustion is normally initiated (compression-ignition, not spark) • Common causes of diesel ‘run-on’ or ‘dieseling’ after shutdown

💭 Think About

• Think about what actually makes a diesel keep firing even after you stop normal fuel injection. • Which option would still provide combustible material or ignition inside the cylinders after shutdown? • Which choice would realistically allow the engine to continue getting either fuel or an ignition source without operator control?

✅ Before You Answer

• Identify which option could act as an uncontrolled fuel source after shutdown. • Ask whether any choice would realistically keep providing heat for ignition without normal operation. • Eliminate options that would more likely cause loss of power or failure to run, not continued running.

Question 1 of 27070

If a diesel engine continues to run after attempting to shut it down, the probable cause is __________.

incandescent carbon particles

air remaining in the cylinders

lube oil leakage into the air intake system

a broken turbocharger valve