Practice question

What is the primary cause of engine 'knocking' or 'pinging' during vehicle operation?

  1. Low octane fuel or incorrect engine ignition timing
  2. An overcharged vehicle battery
  3. Worn out brake pads rubbing against the rotors
  4. Excessive engine coolant level in the expansion tank

Answer: A — Low octane fuel or incorrect engine ignition timing

The correct answer is shown above. Try the full quiz for additional practice.

Practice more: BRTA Learner Test Practice Questions - Bangladesh BRTA Learner Driving Licence Test Exam →