Ontario Class D (DZ) Practice Test 6

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. Which vehicles are exempt from Ontario's speed-limiter rule?

   1. Dump trucks over 11,794 kg
   2. All trucks built before 2010
   3. Motor homes and fire apparatus
   4. Cube vans in cities

2. 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

3. 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

4. Instead of an "OVERSIZE LOAD" sign, which other sign may be used?

   1. A slow-moving vehicle triangle
   2. A "D" sign
   3. An LCV placard
   4. A dangerous goods placard

5. An orange sign shows a pilot vehicle. What must you not do?

   1. Slow below 50 km/h
   2. Use your headlights
   3. Pass the pilot or pace vehicle
   4. Follow the pilot vehicle

6. What are truck drivers expected to know about a disabled brake system?

   1. How to rebuild it at roadside
   2. Recognize it, not repair it
   3. How to bypass it safely
   4. Nothing; mechanics only

7. 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

8. Your new licence arrives in the mail. What do you do with the old one?

   1. Destroy it
   2. Give it to your employer
   3. Keep it as a spare
   4. Mail it to the insurer

9. You loaded at 7 a.m. When must you first stop to check the load?

   1. At the end of the day
   2. Within the first 80 km
   3. After 3 hours or 500 km
   4. Only if you hear a noise

10. A sign bans trucks on a road on weekends. What must you do?

    1. Ignore it if lightly loaded
    2. Use flashers and proceed
    3. Obey it and use another route
    4. Drive under 40 km/h

11. You hear an air leak during your circle check. What should you do next?

    1. Ignore it if pressure is normal
    2. Drive and recheck tomorrow
    3. Do the air-loss rate test
    4. Add an alcohol evaporator

12. About how early does the medical report notice arrive before it is due?

    1. Five years
    2. One week
    3. One year
    4. Three months

13. Which class is a school-purposes bus with at most 24 passengers?

    1. Class C
    2. Class B
    3. Class F
    4. Class E

14. Which foot should you use for both the brake and accelerator?

    1. Either foot at random
    2. The right foot
    3. Left for brake, right for gas
    4. The left foot

15. When may you turn left on a red light?

    1. Only if no pedestrians are near
    2. From any road after stopping
    3. From one-way onto one-way
    4. Never, anywhere in Ontario

16. What identifies the class of dangerous goods on a truck or pallet?

    1. A flashing amber light
    2. The colour of the truck cab
    3. Safety marks, placards or labels
    4. The driver's uniform

17. On what kind of truck is an inter-axle differential lock found?

    1. One with a single rear axle
    2. Only all-wheel-drive pick-ups
    3. One with tandem rear axles
    4. Any truck with air brakes

18. What is hydroplaning?

    1. Brakes overheating in the rain
    2. Wipers lifting off the glass
    3. Tires riding up on water
    4. Water getting into the engine

19. You notice a gap between a wheel nut and the wheel. What does it suggest?

    1. Over-tightened nuts, a minor defect
    2. A minor cosmetic issue only
    3. Normal heat expansion, not a defect
    4. A loose fastener: major

20. A 6-m cube van with two people aboard wants the HOV lane. Is it allowed?

    1. Yes, under 6.5 m with 2+ people
    2. Only with 3 or more people
    3. Only at night
    4. No, all trucks are banned

21. If you must use part of another lane to make a sharp turn, whose job is it to do it safely?

    1. Yours, the driver's
    2. The police's
    3. No one's
    4. Other drivers' only

22. Your heavy truck slows to a crawl climbing a steep hill. What should you do?

    1. Stop in the lane and rest
    2. Pull over onto the median
    3. Switch off all your lights
    4. Keep going, four-ways on

23. After the warm-up idle, how should you start driving?

    1. At full power to finish warming
    2. Gently, without hard throttle
    3. With the engine brake on
    4. In neutral down a hill

24. A sign warns that a structure ahead may not allow room for tall vehicles. What should a tall truck do?

    1. Speed up under it
    2. Choose another route
    3. Drive in the centre
    4. Lower its tire pressure

25. Stopped in traffic behind another vehicle, why leave a reasonable gap?

    1. To let pedestrians sit down
    2. To save fuel when idling
    3. To read the vehicle's plate
    4. To manoeuvre if needed

26. Which gauge should you check right after starting the engine?

    1. Trip odometer
    2. Fuel economy
    3. Outside temperature
    4. Oil pressure

27. 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

28. With brakes held applied for one minute, what air drop is a major defect on a Class D truck?

    1. More than 1 psi
    2. More than 5 psi
    3. More than 8 psi
    4. More than 3 psi

29. 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

30. How is a leaking wheel seal classed?

    1. A minor defect
    2. A critical defect
    3. A major defect
    4. Not a defect

31. On a right-hand curve your rear wheels keep dropping onto the shoulder. What should you change?

    1. Brake hard in the middle of the curve
    2. Speed up through the rest of the curve
    3. Drive nearer the right edge of the road
    4. Front wheels nearer the lane's left

32. A Class G holder adds an RV endorsement. Up to what RV weight may they drive?

    1. Any weight
    2. 4,600 kg
    3. 14,000 kg
    4. 11,000 kg

33. What does the CVOR system track?

    1. Operators' safety records
    2. Each driver's demerit points only
    3. The fuel tax paid by each carrier
    4. Toll payments made on Highway 407

34. Besides fixed stations, where else may trucks be inspected?

    1. Only at international border crossings
    2. At mobile inspection units
    3. Only at DriveTest centres
    4. Only inside the operator's garage

35. Under what condition may a driver switch from one cycle to the other?

    1. Any day at midnight
    2. Only with police approval
    3. Only by starting a new cycle
    4. Only after an inspection

36. Which part of the road test is for Class A only and not Class D?

    1. The daily inspection
    2. The backing skills test
    3. The on-road driving test
    4. Uncoupling and coupling

37. A car shows a flashing green light behind you. Who is it?

    1. A tow truck on a call
    2. A police supervisor's car
    3. A volunteer responder
    4. A road construction crew

38. Why downshift before entering an intersection rather than in it?

    1. Because shifting there is illegal
    2. To avoid lugging mid-crossing
    3. To keep the cab radio quiet
    4. To make the brake lights flash

39. Entering a tunnel on a bright day, what should you do?

    1. Keep your sunglasses on inside
    2. Slow down, sunglasses off, lights on
    3. Speed up to get through it sooner
    4. Switch on your high beams

40. Where should a person in a motorized wheelchair travel if there is no sidewalk?

    1. On the left shoulder facing traffic
    2. In the centre of the lane
    3. On the right shoulder with traffic
    4. On the median