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Ontario Class A Practice Test 4: All Topics, Set D

Every commercial topic, mixed like the real exam. No repeats across Sets A to D.

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What this Ontario practice test covers

  • Licensing (11)
  • Impaired Driving (1)
  • Highway Driving (1)
  • Intersections & Right-of-Way (1)
  • Parking (1)
  • Road Rules (1)
  • Sharing the Road (1)
  • Road Signs (1)
  • Tdg (1)
  • Weather & Night Driving (1)

The MTO does not publish a pass mark or the number of questions for this test. This practice test is based on the official Ministry of Transportation Ontario (MTO) driver handbook.

Try sample Ontario questions

These questions come from our bank of 327+. The real Ontario written test draws from similar material in the official driver handbook.

3 free preview of 20

1

What is the function of the tractor protection valve in a combination vehicle?

  • A.It protects tractor air if the trailer breaks away
  • B.It dries the air before it reaches the trailer
  • C.It increases trailer brake pressure on downgrades
  • D.It releases the trailer spring brakes for parking
2

Because a bus is long with a high seating position, when making turns the driver must especially watch for:

  • A.Off-tracking and rear swing
  • B.The same things as in a car
  • C.The fuel gauge reading
  • D.Tire pressure on the drive axle
3

On an Ontario highway at more than 60 km/h, what minimum distance must a commercial motor vehicle keep from the vehicle ahead?

  • A.At least 60 metres (200 ft.)
  • B.At least 30 metres (100 ft.)
  • C.Two seconds, the same as a passenger vehicle
  • D.Five car lengths at any speed

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Ontario Class A Practice Test 4 (All Topics)