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Manitoba Commercial overview

Manitoba Commercial: Trip inspections and road test vehicle rules

Who must do a daily trip inspection, what the report contains, major and minor defects, the road test inspection and vehicle requirements, tread, mud flap and reflective tape rules, hydraulic brake checks, in-service, post-trip and pre-hill inspections.

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Trip inspections and road test vehicle rules · Question 1Score 0/0

Which fuel system condition is a major defect?

Study reference: MPI Professional Driver's Manual (PDF, Dec. 2025), Ch. 5 Vehicle trip inspection — Vehicle condition, Trip inspection testing, Class 1 and Class 2-4 inspections, In-service, Post-trip and Pre-hill inspections

All 14 questions in this test

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

  1. Which fuel system condition is a major defect?

    1. A fuel gauge reading low
    2. A dripping fuel leak
    3. Dust on the fuel tank straps
    4. A missing fuel tank cap

  2. How high may the lower edge of a mud flap be on a road test vehicle?

    1. Any height, if both sides match
    2. No more than 350 mm from the ground
    3. No more than 150 mm from the ground
    4. No more than 600 mm from the ground

  3. Which vehicle cannot be used for an MPI road test?

    1. A truck with a valid inspection sticker
    2. A truck placarded for dangerous goods
    3. A truck with three reflectors aboard
    4. A trailer registered over 4,540 kg

  4. Where are defects found during a post-trip inspection recorded?

    1. On a separate weekly form
    2. On the next morning's new report
    3. On that day's trip inspection report
    4. Only in the maintenance shop's records

  5. How much reflective tape must a road test trailer have?

    1. At least 100% of the sides only
    2. At least 50% of the sides and 100% of the back
    3. Only on the rear doors
    4. At least 25% of the sides and half the back

  6. Besides the usual details, what must a Manitoba trip inspection report record about the vehicle?

    1. The brand of every tire on the vehicle
    2. The number of hours since the last fill-up
    3. The driver's home phone number
    4. The height and width of the vehicle and load

  7. You find a major defect during your trip inspection. What must happen?

    1. Fix it within seven days and keep driving
    2. Write it on tomorrow's report
    3. Report it at the end of the shift
    4. Report it immediately; the vehicle may not operate

  8. How long should the trip inspection take on a Class 2, 3 or 4 road test?

    1. As long as the examiner allows
    2. About one hour
    3. No more than five minutes
    4. No more than 20 minutes

  9. Under Manitoba's trip inspection rules, which of these is a commercial motor vehicle?

    1. A car towing a small utility trailer
    2. A motorhome used for a family holiday
    3. A pickup used only for personal trips
    4. A school bus

  10. How often must a commercial vehicle in service have a trip inspection?

    1. Every 12 hours
    2. Once a week
    3. Once every 24 hours
    4. Before each load is picked up

  11. During the hydraulic brake check, the pedal is held for one minute. What result must be reported?

    1. The pedal rises slightly when released
    2. The pedal feels harder with the engine off
    3. The pedal moves toward the floor more than 65%
    4. The pedal stays firm the whole minute

  12. What windshield damage in the area swept by the wipers must be reported?

    1. Only damage on the passenger side
    2. A star or chip 12.7 mm or larger
    3. Any small scratch at all
    4. Only cracks longer than 30 cm

  13. What extra exercise does a Class 1 applicant complete during the road test inspection?

    1. A parallel parking test
    2. A coupling exercise
    3. A fire extinguisher demonstration
    4. A tire change

  14. Which lamp failure is a major defect?

    1. One clearance lamp not working
    2. One side marker lamp burnt out
    3. Failure of both rearmost brake lamps
    4. A cracked licence plate lamp lens

Trip inspections and road test vehicle rules: key rules to remember

Our summary of what the official handbook says on this topic, in our own words. Read it before or after the practice questions above, then check the original chapter. Read the official chapter ↗

Ch. 5 Vehicle condition (p. 92)

  • A commercial motor vehicle is a regulated vehicle of 4,500 kg GVWR or more, a bus seating 11 or more used for gain, or a school bus.
  • A trip inspection is required once every 24 hours the vehicle is in service, under the Commercial Vehicle Trip Inspection Regulation (MR 95/2008).
  • The report includes plate or unit number, odometer, carrier, date and time, location, the inspector's printed name, and the height and width of vehicle and load.
  • Report any suspected safety defect to the carrier; a major defect must be reported immediately and the vehicle may not be operated.
  • Drivers must carry a current trip inspection report for the vehicle and any trailer.

Ch. 5 Trip inspection testing and road test reminders (p. 92)

  • Class 1, 2, 3 (including pickups towing over 4,540 kg) and Class 4 bus road tests include a trip inspection of the vehicle you supply.
  • The Class 2, 3 and 4 inspection should take no more than 20 minutes; the hydraulic brake check no more than 5.
  • Class 1 applicants inspect specific components and also complete a coupling exercise.
  • An incomplete inspection, coupling or brake inspection ends the road test as a failure.
  • Trailers must be registered over 4,540 kg; trucks 4,500 kg or more need a valid inspection sticker and three flares or reflectors.
  • Mud flaps are required, no more than 350 mm from the ground.
  • Reflective tape must cover at least 50% of the sides and 100% of the back.
  • Placarded vehicles, or vehicles carrying flammable fuel containers over 500 L, cannot be used for a road test.

Ch. 5 Class 1 and Class 2–4 inspection items (pp. 93–104)

  • Major air brake defects include pushrod stroke over the limit, excessive air loss, a faulty low air warning, and parking or emergency brakes that do not work.
  • Coupling check: apply trailer brakes, release tractor brakes and rock gently forward and back; look under the trailer to see the jaws closed.
  • Major tire defects: flat tire, tread below the limit, tire touching another tire, "not for highway use" marking, exposed cords.
  • A fuel leak that drips is a major defect; a missing fuel cap is minor.
  • Failure of both rearmost brake lamps, or of one rearmost turn signal, is a major defect.
  • An exhaust leak into the cab is a major defect.
  • Windshield chips or stars of 12.7 mm or more in the wiper area must be reported.
  • Wipers must clear about 75% of the windshield.
  • Hydraulic brakes: with steady moderate pressure for one minute, the pedal must not sink more than 65%.

Ch. 5 In-service, post-trip and pre-hill inspections (p. 107)

  • In-service checks: wheel nuts, tires, hub and drum heat, brakes, couplings, load, drive line and oil leaks, lights and windshield; record them in the log book.
  • Post-trip defects are added to that day's trip inspection report.
  • Where signs require it, stop before a steep hill and check compressor pressure, pushrod travel, air leaks, gladhands and lines, drum heat and emergency valve; hydraulic systems check pedal reserve, vacuum booster, drums and leaks.

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