Diesel Engine Failures due to Poor Fuel Quality
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Questions and Answers

What is the main cause of over 90% of all Diesel engine failures according to the text?

  • Excessive use of the engine
  • Poor fuel quality (correct)
  • Engine overheating
  • Lack of maintenance
  • How can microorganisms enter the fuel system according to the text?

  • Through direct human contact with the fuel tank
  • Through the vehicle's exhaust pipe
  • Via physical matter contamination like rust (correct)
  • From the emission of other vehicles on the road
  • What problems can the growth of microorganisms in the fuel system cause according to the text?

  • Reduced air pollution
  • Increased engine efficiency
  • Enhanced fuel quality
  • Filter clogging and corrosion (correct)
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