Canada Exam Prep
Ontario Class D (DZ) overview

Ontario Class D (DZ) Mock Exam 1

Same format as the real test. Answers stay hidden until you submit. The official time limit is not published; the timer is a practice setting.

  • 40 questions
  • untimed
  • Pass mark 32/40
0/40
Mock exam 1 · Question 10 answered

Where should you avoid stopping or parking?

All 40 questions in this test

Every question and its answer choices. The correct answers and explanations appear when you take the test above.

  1. Where should you avoid stopping or parking?

    1. In a highway rest area
    2. On the right shoulder when needed
    3. In a marked truck parking bay
    4. Behind a vehicle about to reverse

  2. The driver's seat belt will not latch. How is this classed?

    1. Minor if the trip is short
    2. A minor defect
    3. A major defect
    4. Not a defect

  3. Where can you get a blank medical report form for a Class D application?

    1. Only from your employer
    2. Only from a hospital
    3. Only online from MTO
    4. At any DriveTest centre

  4. Which applicants skip the daily inspection on the road test?

    1. Class D with RV restriction
    2. Class D over age 65
    3. Nobody skips it
    4. Class D with automatic trucks

  5. A truck branded "Salvage" has been repaired. What brand can it earn after passing a structural inspection?

    1. Certified
    2. None
    3. Rebuilt
    4. Irreparable

  6. On hydraulic brakes without power assist, what result means the truck must come out of service?

    1. The brake light comes on
    2. The pedal returns quickly
    3. The held pedal sinks steadily
    4. The pedal feels firm and stays up

  7. Who must install wheels and tires on a commercial vehicle?

    1. Any service station attendant on duty
    2. A certified installer or mechanic
    3. Any driver who carries a jack
    4. The shipper's loading-dock staff

  8. How old must you be to apply for a Class D licence?

    1. At least 21
    2. At least 16
    3. At least 18
    4. At least 17

  9. Your truck's rear wheels keep riding up on corner curbs. What should you do?

    1. Use the sidewalk on purpose
    2. Turn faster to finish more quickly
    3. Go further in before turning
    4. Turn the wheel sooner and sharper

  10. Which vehicle is exempt from CVOR requirements?

    1. A 30-passenger bus
    2. A US-plated tractor in Ontario
    3. A 12,000 kg dump truck
    4. A motor home

  11. A collision causes $3,000 of damage and no injuries. What must you do?

    1. Exchange information
    2. Pay the other driver in cash
    3. Report it to police within 1 hour
    4. Leave the scene without stopping

  12. Which handbook should you use for a full air brake pre-trip inspection?

    1. The CVOR operator's manual
    2. The Official Air Brake Handbook
    3. The Bus Handbook
    4. The Official Driver's Handbook

  13. An 81-year-old holds a Class D licence. What must they pass before renewing?

    1. Vision, knowledge, road tests
    2. A knowledge test only
    3. No tests at that age
    4. A vision test only

  14. You wait 40 minutes at a roadside inspection. How is this time logged?

    1. On duty, not driving
    2. Driving
    3. Sleeper berth
    4. Off duty

  15. On a Class D road test you make errors on two daily inspection items. What is the result?

    1. You pass with a warning
    2. You redo one item
    3. You lose 2 of 30 points
    4. You do not pass

  16. Should you use warning devices for a daytime breakdown off the road?

    1. It is recommended
    2. No, never in daylight
    3. Only if police ask
    4. Only on 400-series roads

  17. Which item must appear on the daily log?

    1. The weather forecast for the day
    2. The price paid for each load
    3. The driver's home phone number
    4. Starting odometer reading

  18. What marks the boundaries in the backing test?

    1. Cones
    2. Painted lines only
    3. Rope barriers
    4. Parked cars

  19. Your loaded flatbed is 4.3 m tall. What is the problem?

    1. Only a problem on 400-series roads
    2. Nothing, the limit is 4.5 m
    3. Only a problem at night
    4. It exceeds the 4.15 m height limit

  20. What separates an HOV lane from the general lanes?

    1. A concrete wall
    2. A grass median
    3. Nothing at all
    4. A striped buffer

  21. Air pressure drops toward 60 psi while you drive. What will the spring brakes do?

    1. Do nothing until 20 psi
    2. Release completely and stay off
    3. Begin to apply on their own
    4. Lock the steering wheel

  22. On the Class D road test, how many errors are allowed across driving and backing?

    1. Up to 15
    2. Up to 5
    3. Up to 60
    4. Up to 30

  23. A driver uses a pick-up with a 5,500 kg MGVWR for personal errands. Do hours-of-service rules apply?

    1. Yes, always
    2. Only over 160 km
    3. No, it is exempt
    4. Only on weekends

  24. The road ahead looks black and shiny on a cold day. What should you suspect?

    1. A fuel spill
    2. Black ice
    3. Clean dry pavement
    4. Fresh asphalt

  25. Your duty status changes before 3 hours or 240 km. What does this mean for the load?

    1. No check is required
    2. Wait until 240 km
    3. Wait until 3 hours
    4. Re-inspect it now

  26. At what air pressure should pushrod stroke be measured?

    1. 90 to 100 psi
    2. Any pressure at all
    3. 40 to 50 psi
    4. 120 to 130 psi

  27. Which gear should you use when first moving off with a load?

    1. Reverse, then first
    2. The lowest appropriate gear
    3. Any middle gear
    4. The highest gear

  28. A round sign shows a truck in a red circle with a slash. What does it mean?

    1. Truck parking only
    2. Truck route ahead
    3. No heavy trucks on this road
    4. Trucks must stop ahead

  29. What shape is a school zone sign?

    1. Eight-sided
    2. Round
    3. Five-sided
    4. Triangular

  30. Why do drivers new to a truck often brake hard in curves?

    1. Curve speeds are posted too low
    2. They misjudge safe curve speed
    3. Their brakes are always too weak
    4. Trucks cannot downshift in curves

  31. Which regulation sets Ontario's hours-of-service rules?

    1. O. Reg. 199/07
    2. O. Reg. 587
    3. O. Reg. 555/06
    4. O. Reg. 363/04

  32. You become stranded in a severe snowstorm. What should you do?

    1. Sleep with all windows sealed tight
    2. Stay with the truck
    3. Walk to the nearest town for help
    4. Run the engine nonstop for heat

  33. Besides a DriveTest centre, where in Toronto can you apply for a truck licence by appointment?

    1. Any Toronto police station counter
    2. Any branch of the public library
    3. ServiceOntario, Bay and College
    4. The customs hall at Pearson Airport

  34. A car drives into the space you need to finish a right turn. What should you do?

    1. Go slowly and check first
    2. Sound the horn and keep turning
    3. Finish the turn quickly anyway
    4. Reverse back into the intersection

  35. Since July 1, 2025, what is the heaviest RV a full Class G licence alone covers?

    1. 14,000 kg
    2. 4,600 kg
    3. No limit
    4. 11,000 kg

  36. Which regulation contains the full Schedule 1 inspection lists?

    1. O. Reg. 512/97
    2. O. Reg. 363/04
    3. O. Reg. 199/07
    4. O. Reg. 555/06

  37. About how much fuel can a big truck engine burn idling at 900 rpm?

    1. Up to 10 litres an hour
    2. Up to 1 litre a day
    3. Almost none
    4. Up to 4 litres an hour

  38. You come to an intersection with no signs or lights. Who has the right-of-way?

    1. The vehicle on your right
    2. The heavier of the two vehicles
    3. The faster of the two vehicles
    4. The vehicle coming from your left

  39. What do EDR signs along a road mark?

    1. Electric vehicle charging points
    2. Express delivery truck routes
    3. A detour around a highway closure
    4. Exits reserved for dump trucks

  40. At 15°C, how long should a truck warm up after a cold start?

    1. 3 to 5 minutes
    2. Up to 1 minute
    3. 15 to 20 minutes
    4. 7 to 10 minutes

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