BC Class 1–4 Practice Test 4

All 30 questions in this test

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

1. During a bus pre-trip, how should the rear emergency door be checked?

   1. It opens and closes from outside
   2. It stays locked from the inside at all times
   3. It opens only with a key
   4. It is not part of the check

2. What forward deceleration force must a cargo securement system withstand?

   1. 0.5 g
   2. 1.5 g
   3. 0.8 g
   4. 0.2 g

3. What is a special activity bus?

   1. A school bus with no set schedule
   2. A bus used for city transit on fixed routes
   3. A bus that carries only adults
   4. A tour bus with a sleeper

4. Where must dangerous goods shipping documents be kept during a trip?

   1. At the carrier's office
   2. In the sleeper compartment only
   3. Locked in the trailer
   4. Readily available in the cab

5. A compressor belt deflects more than double its width when pressed between pulleys. What does this mean?

   1. It is too tight
   2. It needs adjusting
   3. It is correctly tight
   4. It must be replaced only if cracked

6. What does the crossing control arm on a school bus do?

   1. Keeps crossing children in your view
   2. Opens the entrance door
   3. Signals the bus is turning
   4. Blocks traffic from passing the stopped bus

7. In the Class 1 pump-down, when must the trailer air supply valve close?

   1. When pressure reaches 80 p.s.i.
   2. When the highest tank reads 20–45 p.s.i.
   3. Only when the engine is shut off
   4. As soon as any gauge drops to 60 p.s.i.

8. What do the one-way check valves between the reservoirs do?

   1. Stop air flowing back out of the service tanks
   2. Warn the driver of low air
   3. Exhaust air quickly on release
   4. Raise the pressure in the wet tank when braking

9. By how much can fuel-efficient driving techniques improve fuel economy?

   1. Up to 5 per cent
   2. Up to 30 per cent
   3. Up to 60 per cent
   4. They make no real difference

10. May rub rails be used as tiedown anchor points?

    1. Yes, if the load is light
    2. Yes, with edge protectors
    3. No
    4. Yes, on flat decks only

11. When should an aggregate load such as crushed stone be covered?

    1. Only on highways with limits over 90 km/h
    2. Never; tarps are optional
    3. When it could bounce, blow or fall off
    4. Only in wet weather

12. What must Class 1 applicants show with the slack adjusters during the pre-trip test?

    1. How to set up a slack adjuster
    2. How to bleed the air tanks
    3. How to remove a brake drum
    4. How to replace a brake chamber

13. How much more road damage can one heavy vehicle do than a passenger car?

    1. Up to 50 times more
    2. About the same
    3. Up to 5,000 times more
    4. Up to 25 times more

14. The limit is 90 km/h and you pass a stopped tow truck with flashing lights. What is your maximum speed?

    1. 80 km/h
    2. 70 km/h
    3. 60 km/h
    4. 40 km/h

15. You fail a commercial knowledge test. How long must you wait before trying again?

    1. 24 hours
    2. 30 days
    3. 14 days
    4. 7 days

16. With one trailer, what is the most air loss allowed during a one-minute brake application?

    1. 2 p.s.i. per minute
    2. 6 p.s.i. per minute
    3. 4 p.s.i. per minute
    4. 8 p.s.i. per minute

17. Using the pry method, what free stroke is acceptable?

    1. 1 to 1½ inches
    2. Less than 1/8 inch
    3. ½ to ¾ inch
    4. 1¾ to 2 inches

18. Which licence is the minimum for driving a ride-hailing vehicle carrying passengers for pay in B.C.?

    1. Class 3
    2. Class 4 with code 20
    3. Class 4 restricted
    4. Class 5

19. Which vehicle needs a daily written trip inspection report?

    1. A motorhome on a family trip
    2. A two-axle truck licensed over 14,600 kg
    3. A pickup truck licensed at 5,000 kg GVW or less
    4. A car used for deliveries

20. How long after the start of a work shift does driving have to stop?

    1. After 18 hours have elapsed
    2. After 13 hours have elapsed
    3. After 14 hours have elapsed
    4. After 16 hours have elapsed

21. How is the tug test done after coupling?

    1. Both brakes released, pull hard
    2. Tractor brakes applied, trailer released, back up
    3. Both brakes applied, rev the engine
    4. Trailer brakes applied, tractor brakes released, pull gently

22. How should cargo be placed to reduce rollover risk?

    1. Low, spread out and near the centre
    2. High and toward the rear
    3. On one side for balance
    4. Stacked at the front corners

23. How are spring brakes applied and released?

    1. Applied by hydraulic pressure
    2. Applied by air, released by spring
    3. Applied by spring force, released by air
    4. Applied and released by air

24. Does a 90-degree slack adjuster angle when applied prove the brake is adjusted?

    1. Yes, on automatic adjusters
    2. No; it depends on pushrod length
    3. Yes, a 90-degree angle always proves adjustment
    4. Only on trailer axles

25. Which class covers a special-vehicle bus seating 20 people including the driver?

    1. Class 4 restricted
    2. Class 5
    3. Class 3
    4. Class 4 unrestricted

26. Which condition is part of the 160 km radius exemption from keeping a log?

    1. Never carry more than 10 passengers on any trip
    2. Drive only on paved highways
    3. Work fewer than 8 hours a day
    4. Return to the terminal daily for 10 hours off

27. Which commercial trailers need reflective markings to the rear and sides?

    1. Trailers built before 2000 only
    2. Trailers 2.05 m wide or more
    3. Only trailers longer than 16 m
    4. Only trailers hauling dangerous goods

28. Which colour usually marks the control (service) glad hand?

    1. Blue
    2. Yellow
    3. Red
    4. Green

29. Where should warning devices go around a disabled vehicle?

    1. Right beside the vehicle
    2. About 30 m ahead and 30 m behind
    3. About 10 m behind only
    4. About 75 m ahead and behind

30. What do brakes turn the energy of a moving vehicle into?

    1. Air pressure
    2. Heat
    3. Sound
    4. Electricity