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

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. These questions are designed to help you understand how the test works, not just memorize random facts.

This guide focuses on G1 practice questions Ontario that reflect the most common topics tested in the official knowledge exam.

How the Ontario G1 Knowledge Test Works

Before practicing, it’s important to understand the exam format:

• 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 Ontario – 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 Ontario – 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
Explanation: Always follow posted limits when they differ.

22. When should you reduce your speed?

Answer: In bad weather or heavy traffic
Explanation: Speed must match conditions.

23. What does a posted speed limit sign represent?

Answer: Maximum speed under ideal conditions
Explanation: Poor conditions require slower speeds.

24. Why do speed limits exist?

Answer: To improve safety and reduce collisions
Explanation: Speed control protects everyone.

25. What happens if you exceed the speed limit?

Answer: You may receive fines or demerit points
Explanation: Speeding increases accident risk.

Defensive Driving & Safety

26. When should headlights be used?

Answer: Between sunset and sunrise or when visibility is poor
Explanation: Headlights help you see and be seen.

27. What should you do if another driver is aggressive?

Answer: Stay calm and avoid confrontation
Explanation: Road rage increases danger.

28. What is the safest way to stop on ice?

Answer: Brake gently and early
Explanation: Sudden braking causes skidding.

29. What should you do if a tire blows out?

Answer: Hold the wheel firmly and slow down gradually
Explanation: Sudden steering can cause loss of control.

30. Why are seat belts important?

Answer: They reduce the risk of serious injury
Explanation: Seat belts save lives.

Many learners use G1 practice questions Ontario to understand road rules instead of memorizing information blindly.

Signs & Signals

31. What does a stop sign require?

Answer: A complete stop
Explanation: Rolling stops are not allowed.

32. What does a yield sign mean?

Answer: Slow down and give way if needed
Explanation: Stop only if required for safety.

33. What does a railway crossing sign warn of?

Answer: Train tracks ahead
Explanation: Always look and listen for trains.

34. What does a no-parking sign indicate?

Answer: Parking is not allowed
Explanation: Violations may result in fines.

35. What does a construction zone sign mean?

Answer: Road work ahead
Explanation: Slow down and stay alert.

G1 Driver Rules & Responsibilities

36. Can a G1 driver drive alone?

Answer: No
Explanation: A fully licensed driver must be present.

37. Can a G1 driver use a mobile phone?

Answer: No
Explanation: Distracted driving laws apply to all drivers.

38. Who must wear a seat belt?

Answer: All occupants
Explanation: The driver is responsible.

39. What must drivers carry while driving?

Answer: A valid driver’s licence
Explanation: Police may request it.

40. What alcohol level is allowed for G1 drivers?

Answer: Zero
Explanation: Any alcohol is illegal.

Weather & Visibility

41. What should you do in heavy rain?

Answer: Slow down and increase following distance
Explanation: Wet roads reduce traction.

42. What causes hydroplaning?

Answer: Driving too fast on wet roads
Explanation: Tires lose contact with the road.

43. What is black ice?

Answer: Thin, nearly invisible ice
Explanation: Extremely slippery.

44. Why should snow be cleared from your car?

Answer: To maintain visibility
Explanation: Snow can block your view.

45. When should windshield wipers be used?

Answer: When visibility is reduced
Explanation: Clear vision is essential.

Parking & Stopping Rules

46. How far must you park from a fire hydrant?

Answer: At least 3 metres
Explanation: Allows emergency access.

47. Is parking on sidewalks allowed?

Answer: No
Explanation: Sidewalks are for pedestrians.

48. When is stopping prohibited?

Answer: Where it blocks traffic
Explanation: Safety comes first.

49. What should you do before leaving your parked car?

Answer: Turn off engine and apply parking brake
Explanation: Prevents movement.

50. Why are parking rules enforced?

Answer: To keep roads safe
Explanation: Improper parking creates hazards.

Awareness & Judgment

51. Why are blind spot checks important?

Answer: Mirrors don’t show everything
Explanation: Vehicles can be hidden.

52. What should you do if blinded by headlights at night?

Answer: Look toward the right edge of the road
Explanation: Helps maintain lane position.

53. When should you use your horn?

Answer: To warn of danger
Explanation: Not for anger.

54. What if traffic lights are not working?

Answer: Treat it as a four-way stop
Explanation: Follow right-of-way rules.

55. Why is patience important while driving?

Answer: It reduces risk and stress
Explanation: Calm drivers make safer decisions.

Final Practice Questions

56. What does a broken white line mean?

Answer: Lane changes are allowed
Explanation: Only when safe.

57. What does a solid white line mean?

Answer: Lane changes are discouraged
Explanation: Change only if necessary.

58. Can you turn right on a red light?

Answer: Yes, after a complete stop unless prohibited
Explanation: Always check signs.

59. When must drivers yield to cyclists?

Answer: When sharing the road
Explanation: Cyclists have equal rights.

60. What should you do if you miss a highway exit?

Answer: Take the next exit
Explanation: Never reverse.

61. What is defensive driving?

Answer: Driving to avoid hazards
Explanation: Expect others’ mistakes.

62. Why is tailgating dangerous?

Answer: It reduces reaction time
Explanation: Causes rear-end collisions.

63. What should drivers do when merging?

Answer: Match traffic speed
Explanation: Smooth merging improves safety.

64. When are seat belts mandatory?

Answer: At all times
Explanation: No exceptions.

65. Why are road rules important?

Answer: They keep everyone safe
Explanation: Predictable behavior saves lives.

66. What does a flashing green light allow?

Answer: A protected left turn
Explanation: Turn when safe.

67. What do lane control signals show?

Answer: Which lanes are open
Explanation: Follow arrows.

68. What should you do if visibility worsens?

Answer: Slow down
Explanation: Adjust to conditions.

69. Why must drivers stay focused?

Answer: Distractions cause accidents
Explanation: Attention saves lives.

70. What is the safest driving attitude?

Answer: Calm and cautious
Explanation: Safety comes first.

71. When should you stop at railway crossings?

Answer: When lights or gates are active
Explanation: Trains cannot stop quickly.

72. Why must drivers obey signs?

Answer: They provide legal instructions
Explanation: Ignoring signs is dangerous.

73. What should you do if road conditions worsen?

Answer: Adjust speed and driving behavior
Explanation: Safety is the priority.

74. What is the purpose of traffic laws?

Answer: Regulate safe movement
Explanation: Laws protect everyone.

75. When should passing be avoided?

Answer: On hills or curves
Explanation: Limited visibility.

76. What should you do if you feel tired?

Answer: Take a break
Explanation: Fatigue slows reaction time.

77. Why is scanning the road important?

Answer: It helps spot hazards early
Explanation: Early awareness prevents accidents.

78. What should drivers do near road work?

Answer: Slow down and follow signs
Explanation: Workers may be present.

79. What do regulatory signs tell drivers?

Answer: What they must or must not do
Explanation: They are legally enforceable.

80. What should you do at an unsigned intersection?

Answer: Yield to traffic on the right
Explanation: Follow right-of-way rules.

81. Why is signaling important?

Answer: It communicates intentions
Explanation: Other drivers rely on signals.

82. What should you do when unsure?

Answer: Choose the safest option
Explanation: Safety first.

83. What is the main goal of the G1 test?

Answer: Test basic driving knowledge
Explanation: Ensures understanding of rules.

84. How can you increase your chances of passing?

Answer: Practice regularly
Explanation: Consistency builds confidence.

85. What mindset helps most on test day?

Answer: Calm and prepared
Explanation: Confidence comes from preparation.

86. What should you do if traffic is heavy?

Answer: Increase following distance
Explanation: Allows safer stopping.

87. Why should drivers obey speed limits?

Answer: To reduce accidents
Explanation: Speed affects control.

88. What should drivers do at night?

Answer: Use proper lighting and stay alert
Explanation: Visibility is reduced.

89. Why should drivers avoid distractions?

Answer: They delay reactions
Explanation: Focus prevents crashes.

90. What is the safest driving habit?

Answer: Being alert and cautious
Explanation: Safe habits save lives.

91. What should drivers do before starting the car?

Answer: Adjust mirrors and seat
Explanation: Proper position improves control.

92. Why is checking mirrors important?

Answer: To monitor surrounding traffic
Explanation: Awareness prevents collisions.

93. What should drivers do in unfamiliar areas?

Answer: Drive cautiously
Explanation: Roads may be unpredictable.

94. Why must drivers follow instructions from police?

Answer: They control traffic for safety
Explanation: It is required by law.

95. What should drivers do near pedestrians?

Answer: Slow down and be alert
Explanation: Pedestrians are vulnerable.

96. What should you do before opening your door into traffic?

Answer: Check for cyclists or vehicles
Explanation: Prevents collisions.

97. Why is following distance important?

Answer: It gives time to react
Explanation: Reduces rear-end crashes.

98. What should you do if weather conditions change suddenly?

Answer: Adjust speed and driving style
Explanation: Conditions affect safety.

99. What is the best way to prepare for the G1 test?

Answer: Study and practice consistently
Explanation: Preparation reduces stress.

100. What is the best overall driving rule?

Answer: Drive safely and responsibly
Explanation: Safety always comes first.

Practicing G1 practice questions Ontario consistently can significantly improve your chances of passing the test on your first attempt.

Final Thoughts on G1 Practice Questions Ontario

Practicing G1 practice questions Ontario is one of the most effective ways to prepare for the knowledge test. 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.

If you take the time to review explanations and practice consistently, you’ll not only feel more confident on test day but also build a strong foundation for safe driving in Ontario. Focus on understanding the logic behind each answer, and the G1 test will feel much more manageable.

If you’re still unsure about difficulty levels, read our full breakdown of how hard the Ontario G1 knowledge test in Toronto really is.