Manitoba Commercial Practice Test 9

All 25 questions in this test

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

1. Some school buses have air parking brakes and hydraulic service brakes. Is an air brake endorsement needed?

   1. No, air parking brakes alone do not require it
   2. Yes, any air component requires it
   3. Yes, plus an S endorsement
   4. Only for buses with more than 36 seats

2. A large vehicle that relies only on mirrors needs to cross several lanes. How should it change lanes?

   1. Through an intersection where it is wider
   2. One lane at a time, with full checks each time
   3. Across solid lines if no one is near
   4. All lanes at once to save time

3. Which vehicles may display the slow-moving vehicle sign?

   1. Those travelling below the speed limit
   2. Any truck climbing a steep grade
   3. Those travelling at 40 km/h or less
   4. Any vehicle wider than 2.6 m

4. Why should a CO2 extinguisher not be used in an enclosed space?

   1. It can cause suffocation and skin blistering
   2. It does not work on electrical fires
   3. It freezes the spilled fuel and can make it explode
   4. It spreads grease fires like water does

5. The rear of your bus skids to the left. Which way do you steer first?

   1. To the right
   2. To the left
   3. Straight ahead
   4. Sharply right, then brake

6. Where may passengers not sit while you drive?

   1. To the left of the driver
   2. Beside a window
   3. At the rear of the bus
   4. In the first row behind the driver

7. Trailer spring brakes must apply automatically when supply-line pressure drops below what level?

   1. 90 psi
   2. 60 psi
   3. 110 psi
   4. 20 psi

8. 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

9. Who may supervise a driver holding Class 1–4 Authorized Instruction?

   1. A full Class 5 holder of three years, two in the class being learned
   2. Any driver who has held a Class 5 licence for at least one full year
   3. Any commercial driver with an air brake endorsement
   4. A licensed instructor, even without that class

10. What does the S endorsement on a Manitoba licence allow?

    1. Driving a school bus with passengers
    2. Adjusting manual slack adjusters
    3. Adjusting automatic slack adjusters
    4. Driving vehicles with air-over-hydraulic brakes

11. At about what level are most liquid tanks considered full?

    1. About 95 per cent of capacity
    2. About 50 per cent of capacity
    3. About 70 per cent of capacity
    4. Filled to the top hatch

12. Why does a single malfunctioning brake put the others at risk?

    1. It shuts off air to every other brake
    2. The other brakes work harder and can overheat
    3. It raises the governor cut-out pressure
    4. It makes the ABS release all wheels

13. You notice a spring brake chamber with a caging bolt sticking out. What does it mean?

    1. That brake is disabled; have it repaired now
    2. The spring brakes are fully applied
    3. The chamber is a long-stroke type
    4. The brake has been prepared for a road test

14. How does MPI define a jackknife?

    1. The trailer tips over on its side
    2. The drive wheels spin on ice
    3. The trailer swings 15 degrees and then recovers by itself
    4. The tractor at 90° or less to the trailer

15. For a sharp right turn with a bus, how far from the curb should you position on the approach?

    1. Right against the curb
    2. Three to four metres
    3. One to two metres
    4. In the middle of the left lane

16. You pass a sign requiring trucks to stop and check brakes. What must you do?

    1. Slow down and check your gauges while moving
    2. Stop only if your brakes feel weak
    3. Use the retarder instead of stopping
    4. Stop, check the brakes and record it in the log book

17. Which brake lining condition is a defect?

    1. Lining thicker than the minimum
    2. Lining soaked with grease or oil
    3. Lining touching the drum when applied
    4. Lining clear of the drum when released

18. How far from an oncoming vehicle must you dim your high beams?

    1. At least 60 m
    2. At least 150 m
    3. At least 450 m
    4. At least 1 km

19. How close to the nearest rail of a crossing may you park, unless posted otherwise?

    1. No closer than 30 m
    2. No closer than 5 m
    3. No closer than 15 m
    4. No closer than 100 m

20. What must an emergency vehicle driver still consider when responding to a call?

    1. Nothing, because all other drivers must yield to it
    2. Only the patient's condition
    3. Only the posted speed limit
    4. The road, the traffic and how the vehicle is used

21. How often must a dangerous goods training certificate be renewed?

    1. Every 24 months
    2. Every five years
    3. Every 12 months
    4. Every 36 months

22. How far from a steering-wheel airbag should the driver's seat be positioned?

    1. At least 10 cm
    2. Exactly 15 cm
    3. At least 50 cm
    4. At least 25 cm

23. Which right-turn method is used when the only room to manoeuvre is inside the intersection?

    1. The two-point turn-about
    2. The button hook
    3. The lane-straddling turn
    4. The extended approach

24. During the tractor protection test, the trailer supply valve must close before pressure drops below what?

    1. 60 psi
    2. 90 psi
    3. 45 psi
    4. 20 psi

25. Your vehicle damages a highway structure in Manitoba. Who can be charged?

    1. Only the vehicle manufacturer
    2. Only the permit office
    3. No one, if a permit was issued
    4. The driver or the company