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Ontario · G1 Knowledge Test · G1 · DriveTest (MTO)

Ontario G1 Knowledge Test — G1 Practice Question

Knowledge test administered by DriveTest (MTO) for the G1 licence. 40 questions, 80% to pass.

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Accuracy
Emergency Situations

A flashing (not steady) check-engine light indicates:

Show Answer & Explanation
Correct Answer: B. A serious misfire that can damage the catalytic converter — reduce speed and service soon

Steady check-engine = service soon. Flashing check-engine = active misfire dumping raw fuel into the exhaust and destroying the catalytic converter. Reduce speed and drive to a service location; do not accelerate hard.