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Ontario AZ Licence Practice Test 2026：第3套练习测试

Ontario AZ Licence Practice Test 练习测试第3套（共6套）：再练30道题，附答案和解释。

  • 商用车辆
  • 安大略省
  • 150道题
  • 核对于2026年10月10日

  1. 第1题，共30题

    Every driver must have taken at least how much off-duty time in the preceding 14 days?
    显示答案

    答案: C. 24 consecutive hours

    All drivers must have had at least 24 consecutive hours off duty within the past 14 days.

  2. 第2题，共30题

    How many consecutive hours off duty reset a 7-day cycle?
    显示答案

    答案: D. 36

    Resetting the 7-day cycle takes 36 consecutive hours off duty. The 14-day cycle needs 72.

  3. 第3题，共30题

    How many consecutive hours off duty reset a 14-day cycle?
    显示答案

    答案: A. 72

    Resetting the 14-day cycle takes 72 consecutive hours off duty.

  4. 第4题，共30题

    When may a driver switch from one cycle to the other?
    显示答案

    答案: D. Only when starting a new cycle, after the required reset

    A driver may switch cycles only when starting a new cycle.

  5. 第5题，共30题

    You spend two hours waiting for your trailer to be loaded at a warehouse. How is that time recorded?
    显示答案

    答案: A. As on-duty time, not driving

    On-duty time includes loading, unloading, inspections and waiting for loading or unloading.

  6. 第6题，共30题

    Which of these is one of the four duty statuses in a daily log?
    显示答案

    答案: A. Off duty in a sleeper berth

    The four statuses are off duty (not in a sleeper berth), off duty in a sleeper berth, on duty driving, and on duty not driving.

  7. 第7题，共30题

    When may a driver skip keeping a daily log?
    显示答案

    答案: C. When they stay within 160 km, return to the start and work for one operator that day

    The log exemption needs all three: within 160 km, back to the same place, one operator. The operator must still keep records.

  8. 第8题，共30题

    Which item must a daily log include?
    显示答案

    答案: B. Odometer readings at the start and end of the day

    A daily log includes odometer readings, total distance, plate numbers, the cycle and each duty status change.

  9. 第9题，共30题

    Which vehicle is exempt from Ontario's hours-of-service rules?
    显示答案

    答案: D. A motor home

    Motor homes, tow trucks, ambulances and some other vehicles are exempt from hours-of-service rules.

  10. 第10题，共30题

    Ontario's cargo securement rules are based on which national standard?
    显示答案

    答案: D. National Safety Code Standard 10

    Ontario's Security of Loads regulation adopts National Safety Code Standard 10 for cargo securement.

  11. 第11题，共30题

    After you start a trip, when must you first stop to check your cargo and tiedowns?
    显示答案

    答案: D. Within the first 80 km

    Under the cargo securement standard, you check the cargo and its securement within the first 80 km of the trip.

  12. 第12题，共30题

    After the first check, how often must you re-check cargo securement during a trip?
    显示答案

    答案: B. At a duty status change, or after 3 hours or 240 km, whichever is first

    Re-check the cargo when your duty status changes or after 3 hours or 240 km of driving, whichever comes first.

  13. 第13题，共30题

    What must the total (aggregate) working load limit of your tiedowns be?
    显示答案

    答案: C. At least half the weight of the cargo

    The aggregate working load limit of the tiedowns must be at least 50% of the cargo's weight.

  14. 第14题，共30题

    A single article of cargo is 1.2 m long, weighs 400 kg and is not blocked at the front. How many tiedowns does it need at minimum?
    显示答案

    答案: C. One

    An article 1.52 m long or less and 500 kg or less needs at least one tiedown when it is not blocked at the front.

  15. 第15题，共30题

    A securement system must be strong enough to hold the cargo against which forward force?
    显示答案

    答案: C. 0.8 g of deceleration

    Securement systems must withstand 0.8 g forward, 0.5 g rearward and 0.5 g sideways.

  16. 第16题，共30题

    In Ontario, large trucks covered by the speed limiter rule must have their speed limiter set to no more than:
    显示答案

    答案: C. 105 km/h

    Ontario's speed limiter regulation requires covered trucks to be limited to 105 km/h.

  17. 第17题，共30题

    When driving a commercial motor vehicle faster than 60 km/h, how far behind another vehicle must you stay, except when passing?
    显示答案

    答案: D. At least 60 m

    Ontario law requires commercial motor vehicles over 60 km/h to keep at least 60 m behind other vehicles, except when overtaking.

  18. 第18题，共30题

    A train is coming as you approach a railway crossing. Where must you stop?
    显示答案

    答案: B. At least 5 m from the nearest rail

    When a train is approaching, stop at least 5 m from the nearest rail.

  19. 第19题，共30题

    About how far may a train need to stop under full emergency braking?
    显示答案

    答案: C. Up to 2 km

    A train can take up to 2 km to stop, so never try to beat a train to a crossing.

  20. 第20题，共30题

    You come up behind a stopped school bus with its red lights flashing. How far back must you stop?
    显示答案

    答案: A. At least 20 m

    Stop at least 20 m behind a school bus with flashing red lights, and wait until it moves or the lights stop.

  21. 第21题，共30题

    At a pedestrian crossover, when may you drive on?
    显示答案

    答案: D. When the pedestrian has completely crossed the road

    At pedestrian crossovers, drivers must wait until the pedestrian has completely crossed the road.

  22. 第22题，共30题

    When passing a cyclist in Ontario, how much space must you leave where practical?
    显示答案

    答案: D. At least 1 m

    Drivers must leave at least 1 m when passing a cyclist where practical.

  23. 第23题，共30题

    What is off-tracking when a tractor-trailer turns at low speed?
    显示答案

    答案: C. The trailer's rear wheels cutting inside the path of the front wheels

    In low-speed turns the trailer's rear wheels cut inside the tractor's path, so you must allow extra room.

  24. 第24题，共30题

    This diagram shows a right turn with a tractor-trailer. How should you begin the turn?
    123
    显示答案

    答案: D. Keep the trailer close to the curb, then go forward into the intersection before turning

    Keeping the rear close to the curb blocks others from passing on the right. Moving forward before turning lets the trailer wheels clear the corner.

  25. 第25题，共30题

    When should you use the inter-axle differential lock?
    显示答案

    答案: C. When traction is poor, engaging it before the wheels spin

    Engage the lock when traction is poor, never while wheels are spinning, and turn it off on good surfaces.

  26. 第26题，共30题

    You are about to go down a long, steep hill. What is the best way to control your speed?
    显示答案

    答案: B. Choose a low gear before you start down and use the engine brake

    Select a low gear before the descent and let the engine brake hold your speed so the service brakes do not overheat.

  27. 第27题，共30题

    What causes brake fade?
    显示答案

    答案: B. Brakes overheating, often from long or hard use on downgrades

    Hot brakes lose effectiveness. Long descents, heavy loads and high speed make fade worse.

  28. 第28题，共30题

    What should you do before backing a large truck if you can?
    显示答案

    答案: D. Walk around to check the area and use a guide to help you

    Check the area on foot first and use a guide when possible. Sound the horn and use your four-way flashers.

  29. 第29题，共30题

    This diagram shows a tractor-trailer's no-zones. Which side has the largest blind area?
    1234
    显示答案

    答案: C. The right side, beside the trailer

    The right-side no-zone is the largest and can hide a whole car beside the trailer.

  30. 第30题，共30题

    How many demerit points lead to a licence suspension for a fully licensed Ontario driver?
    显示答案

    答案: B. 15

    Fully licensed drivers who reach 15 demerit points have their licence suspended.

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