G1 practice questions Ontario are one of the best ways to prepare for the Ontario G1 knowledge test without feeling confused or overwhelmed. Most people who fail the exam don't fail because the test is too hard — they fail because they don't know what to focus on.

The G1 test follows clear and predictable patterns. The questions are based on road signs, basic traffic laws, and safe driving situations explained in the Ontario Driver's Handbook.

In this guide, you'll find 100 of the most common G1 practice questions for Ontario (2026), along with simple answers and clear explanations.

How the Ontario G1 Knowledge Test Works

Total questions: 40 (multiple choice)
Two sections: 20 Road Signs + 20 Rules of the Road
Passing score: 16 correct answers in each section

You must pass both sections to succeed. If you fail one, the entire test must be retaken.

G1 Practice Questions — Road Signs Section

1. What does a red octagonal sign mean? Answer: Stop Explanation: The octagon shape is used only for stop signs in Ontario.

2. What does a yellow diamond-shaped sign warn drivers about? Answer: Possible hazards or road conditions Explanation: These signs prepare drivers to slow down and be cautious.

3. What do white rectangular signs usually indicate? Answer: Traffic rules or regulations Explanation: These signs tell drivers what they must or must not do.

4. What does a green highway sign provide? Answer: Direction and destination information Explanation: Green road signs guide drivers to cities, exits, and highways.

5. What does a flashing red traffic light mean? Answer: Stop completely, then proceed when safe Explanation: It works the same way as a stop sign.

G1 Practice Questions — Rules of the Road

6. What is the blood alcohol level allowed for G1 drivers? Answer: Zero Explanation: G1 drivers must follow a zero-alcohol policy.

7. Who has the right-of-way at a four-way stop? Answer: The first vehicle to stop Explanation: If two vehicles stop at the same time, the vehicle on the right goes first.

8. What must you do when approaching a stopped school bus with flashing red lights? Answer: Stop until the lights stop flashing Explanation: This applies unless a physical median separates traffic.

9. What is the typical speed limit in urban areas unless posted otherwise? Answer: 50 km/h Explanation: Always check for posted speed signs.

10. When should you signal before turning? Answer: At least 30 metres before turning Explanation: Signaling early helps other drivers react safely.

Safe Driving Situations

11. What should you do if your brakes stop working? Answer: Shift to a lower gear and apply the parking brake gradually Explanation: This helps slow the vehicle without losing control.

12. How should you respond if your vehicle begins to skid? Answer: Steer in the direction you want the front of the vehicle to go Explanation: This helps regain control.

13. Which headlights should you use in fog? Answer: Low-beam headlights Explanation: High beams reflect light and reduce visibility.

14. What should you do before changing lanes? Answer: Check mirrors, signal, and check blind spots Explanation: Make sure the lane change is safe.

15. What does a flashing amber light mean? Answer: Slow down and proceed with caution Explanation: Be alert and ready to stop.

Right-of-Way Questions

16. Who has the right-of-way when entering a road from a driveway? Answer: Traffic already on the road Explanation: Vehicles entering must yield.

17. What should drivers do at an uncontrolled intersection? Answer: Yield to traffic already in the intersection Explanation: Always proceed carefully.

18. What must drivers do at pedestrian crossings? Answer: Yield to pedestrians Explanation: Pedestrian safety comes first.

19. What should you do when an emergency vehicle approaches with sirens? Answer: Pull over and stop Explanation: This allows emergency vehicles to pass safely.

20. When must you yield at a green light? Answer: When turning left and traffic is approaching Explanation: Oncoming traffic has the right-of-way.

Speed Limits & Traffic Laws

21. What is the maximum highway speed limit unless posted otherwise? Answer: 100 km/h

22. When should you reduce your speed? Answer: In bad weather or heavy traffic

23. What does a posted speed limit sign represent? Answer: Maximum speed under ideal conditions

24. Why do speed limits exist? Answer: To improve safety and reduce collisions

25. What happens if you exceed the speed limit? Answer: You may receive fines or demerit points

Defensive Driving & Safety

26. When should headlights be used? Answer: Between sunset and sunrise or when visibility is poor

27. What should you do if another driver is aggressive? Answer: Stay calm and avoid confrontation

28. What is the safest way to stop on ice? Answer: Brake gently and early

29. What should you do if a tire blows out? Answer: Hold the wheel firmly and slow down gradually

30. Why are seat belts important? Answer: They reduce the risk of serious injury

Signs & Signals

31. What does a stop sign require? Answer: A complete stop — rolling stops are not allowed.

32. What does a yield sign mean? Answer: Slow down and give way if needed.

33. What does a railway crossing sign warn of? Answer: Train tracks ahead — always look and listen for trains.

34. What does a no-parking sign indicate? Answer: Parking is not allowed.

35. What does a construction zone sign mean? Answer: Road work ahead — slow down and stay alert.

G1 Driver Rules & Responsibilities

36. Can a G1 driver drive alone? Answer: No — a fully licensed driver must be present.

37. Can a G1 driver use a mobile phone? Answer: No — distracted driving laws apply to all drivers.

38. Who must wear a seat belt? Answer: All occupants — the driver is responsible.

39. What must drivers carry while driving? Answer: A valid driver's licence.

40. What alcohol level is allowed for G1 drivers? Answer: Zero — any alcohol is illegal.

Weather & Visibility

41. What should you do in heavy rain? Answer: Slow down and increase following distance.

42. What causes hydroplaning? Answer: Driving too fast on wet roads.

43. What is black ice? Answer: Thin, nearly invisible ice — extremely slippery.

44. Why should snow be cleared from your car? Answer: To maintain visibility.

45. When should windshield wipers be used? Answer: When visibility is reduced.

Parking & Stopping Rules

46. How far must you park from a fire hydrant? Answer: At least 3 metres.

47. Is parking on sidewalks allowed? Answer: No — sidewalks are for pedestrians.

48. When is stopping prohibited? Answer: Where it blocks traffic.

49. What should you do before leaving your parked car? Answer: Turn off engine and apply parking brake.

50. Why are parking rules enforced? Answer: To keep roads safe.

Awareness & Judgment

51. Why are blind spot checks important? Answer: Mirrors don't show everything.

52. What should you do if blinded by headlights at night? Answer: Look toward the right edge of the road.

53. When should you use your horn? Answer: To warn of danger — not for anger.

54. What if traffic lights are not working? Answer: Treat it as a four-way stop.

55. Why is patience important while driving? Answer: It reduces risk and stress — calm drivers make safer decisions.

Final Practice Questions (56–100)

Broken white line — Lane changes are allowed only when safe.
Solid white line — Lane changes are discouraged.
Right turn on red — Allowed after a complete stop unless prohibited.
Yield to cyclists — When sharing the road, cyclists have equal rights.
Missed highway exit — Take the next exit; never reverse on the highway.
Defensive driving — Drive to avoid hazards and expect others' mistakes.
Tailgating — Dangerous; reduces reaction time and causes rear-end collisions.
Merging — Match traffic speed for smooth, safe merging.
Seat belts — Mandatory at all times with no exceptions.
Road rules — Keep everyone safe through predictable behavior.
Flashing green light — A protected left turn; turn when safe.
Lane control signals — Show which lanes are open; follow the arrows.
Worsening visibility — Slow down and adjust to conditions.
Driver focus — Distractions cause accidents; attention saves lives.
Safest driving attitude — Stay calm and cautious; safety comes first.
Railway crossings — Stop when lights or gates are active.
Obeying signs — Signs provide legal instructions; ignoring them is dangerous.
Worsening road conditions — Adjust speed and driving behavior.
Purpose of traffic laws — Regulate safe movement and protect everyone.
Avoid passing — On hills or curves where visibility is limited.
Feeling tired — Take a break; fatigue slows reaction time.
Scanning the road — Helps spot hazards early.
Near road work — Slow down and follow signs; workers may be present.
Regulatory signs — Tell drivers what they must or must not do.
Unsigned intersection — Yield to traffic on the right.
Signaling — Communicates intentions; other drivers rely on your signals.
When unsure — Choose the safest option.
Main goal of G1 test — Test basic driving knowledge.
Increase passing chances — Practice regularly.
Best test day mindset — Stay calm and prepared.
Heavy traffic — Increase following distance.
Obey speed limits — Reduces accidents; speed affects control.
Driving at night — Use proper lighting and stay alert.
Avoid distractions — They delay reactions; focus prevents crashes.
Safest driving habit — Stay alert and cautious.
Before starting the car — Adjust mirrors and seat.
Checking mirrors — Monitor surrounding traffic.
Unfamiliar areas — Drive cautiously.
Police instructions — Follow them; it is required by law.
Near pedestrians — Slow down and stay alert.
Opening door into traffic — Check for cyclists or vehicles first.
Following distance — Gives time to react and reduces rear-end crashes.
Sudden weather changes — Adjust speed and driving style.
Best way to prepare for G1 — Study and practice consistently.
Best overall driving rule — Drive safely and responsibly; safety always comes first.

Final Thoughts

Practicing G1 practice questions Ontario consistently can significantly improve your chances of passing the test on your first attempt. Instead of memorizing rules blindly, these questions help you understand how road signs, right-of-way rules, and safe driving principles are tested in real exam situations.

Take the time to review explanations and practice consistently, and you'll not only feel more confident on test day but also build a strong foundation for safe driving in Ontario.

100 Most Common G1 Practice Questions for Ontario (2026) + Answers & Explanations