ICBC Class 1 Knowledge Test Practice

All 35 questions in this test

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

1. The trailer apron sits well above the fifth wheel's pivot points. What should you do?

   1. Release air from the tractor tires
   2. Back in faster so the fifth wheel forces it up
   3. Couple anyway and check later
   4. Adjust trailer height with the landing gear

2. What decal should you look for on the trailer and tractor?

   1. A CVIP inspection decal
   2. A MELT completion decal
   3. A dangerous goods placard
   4. An ICBC insurance sticker

3. In a double-trailer combination, which trailer is most likely to roll over?

   1. The tractor
   2. The first trailer
   3. They are equally likely
   4. The last trailer

4. Once coupled, how should you first test the trailer service brakes?

   1. Lock up the brakes on a hill
   2. Pull the trailer supply valve while moving
   3. Pump the foot brake at highway speed
   4. Apply the trailer hand valve at slow speed

5. What should you see when checking the fifth wheel from the side?

   1. A small gap for the trailer to pivot
   2. The slider pin unlocked
   3. No daylight between plate and apron
   4. Jaws open around the kingpin

6. When backing a semi-trailer, which way do you first turn the steering wheel?

   1. The same way the trailer should go
   2. It does not matter
   3. Opposite to where the trailer should go
   4. Straight, then the same way

7. When should you drain a trailer's air suspension before parking it?

   1. Before applying the trailer brakes
   2. Only in winter
   3. After driving away from the parked trailer
   4. Never; leave it charged

8. How do you check the breakaway system of a trailer with electric brakes?

   1. Disconnect the tractor battery and wait one minute
   2. Pull the breakaway pin; brakes must apply
   3. Drive and brake hard at speed
   4. Spray water on the brake magnets

9. Your trailer starts to whip and then settles down. What should you do?

   1. Speed up to straighten it
   2. Brake hard with the trailer valve
   3. Keep driving, because the swerving has stopped
   4. Stop when safe and check vehicle and load

10. When uncoupling, why back gently against the trailer before setting the tractor brakes?

    1. To drain the air tanks
    2. To test the trailer's spring brakes
    3. To ease pressure on the locking jaws
    4. To raise the landing gear

11. In the first tug test, which brakes are applied?

    1. The trailer brakes only
    2. The tractor brakes only
    3. Both sets of brakes
    4. Neither set of brakes

12. Coupling a set of doubles, which trailer goes directly behind the tractor?

    1. The lighter trailer
    2. The heavier trailer
    3. The longer of the two trailers
    4. The empty trailer

13. When is a trip inspection report needed for a trailer you pick up?

    1. Only for trailers over 10 years old
    2. Only when hauling dangerous goods
    3. Once a week per trailer
    4. For every new trailer each day

14. 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

15. 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

16. What is the maximum drawbar length, unless towing a pole trailer?

    1. Seven metres
    2. Ten metres
    3. Five metres
    4. Three metres

17. Before the Class 1 leakage test, what minimum air pressure is needed?

    1. At least 60 p.s.i.
    2. At least 80 p.s.i.
    3. At least 100 p.s.i.
    4. At least 120 p.s.i.

18. Which is a cause of trailer whipping?

    1. Slow, smooth steering
    2. A shifting load
    3. Correct tire pressure
    4. A low centre of gravity

19. While backing toward the trailer, where should you first stop?

    1. When the landing gear lifts
    2. One metre short of the trailer
    3. Right after the jaws have locked on the kingpin
    4. When the fifth wheel just touches the apron

20. About how long should a Class 1 pre-trip inspection take on the road test?

    1. About two hours
    2. Under 10 minutes
    3. Less than 45 minutes
    4. About 90 minutes

21. When is a tractor-trailer more likely to roll over?

    1. When moving slowly in reverse
    2. When loaded and turning too quickly
    3. When parked on a slight grade
    4. When empty on a straight road

22. 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

23. 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

24. What is trailer whipping?

    1. The trailer lifting on one side
    2. The trailer swinging side to side by itself
    3. The trailer brakes locking up on a wet road
    4. The tractor spinning its wheels

25. Coupling a pintle hitch, how high should the drawbar eye be?

    1. At the height of the trailer deck
    2. Just slightly higher than the hook
    3. Well below the hook
    4. Level with the hook

26. During the circle check, what should be true of the landing gear?

    1. Removed for the trip
    2. Touching the ground lightly
    3. Lowered halfway to steady the trailer in turns
    4. Fully raised, crank handle secured

27. On an evenly loaded tractor-semitrailer, about what share of cargo weight is on the steering axle?

    1. About 1 per cent
    2. About 10 per cent
    3. About 25 per cent
    4. About 45 per cent

28. What must accompany any coupling other than a fifth wheel?

    1. A converter dolly
    2. A second pintle hook
    3. Safety chains or cables as strong as the hitch
    4. A drawbar at least five metres long for stability

29. How does the heavy trailer endorsement (code 20) pre-trip differ from Class 1?

    1. It leaves out the air brake steps
    2. It is done with the engine running
    3. It adds a coupling-only test
    4. It skips the lights check

30. A parked trailer without spring brakes slowly loses its reservoir air. What happens?

    1. Its brakes release
    2. Nothing changes
    3. The landing gear lowers
    4. Its brakes apply harder

31. How can you tell the tractor is lined up straight with the trailer?

    1. The trailer fills the right mirror and none of the left
    2. Each mirror shows an equal part of the trailer
    3. The trailer lights appear in both mirrors
    4. You can see the kingpin in the left mirror

32. Why must you never unlock the pintle hook while the converter dolly is still under the rear trailer?

    1. The air lines will freeze
    2. The dolly brakes will lock and damage the tires
    3. The tow bar can fly up and hurt someone
    4. The trailer will roll forward

33. Why might you place pads under the landing gear when dropping a trailer?

    1. Pads are required by law everywhere
    2. To make the trailer sit level for loading
    3. To keep the legs from rusting
    4. Soft ground can let the legs sink

34. Why turn the steering wheel back once the trailer begins to turn while backing?

    1. To stop the trailer from moving
    2. To make the trailer turn more sharply into the space
    3. So the tractor follows and avoids a jackknife
    4. To straighten the landing gear

35. Before backing under a trailer, how should the fifth wheel be positioned?

    1. Level, with the jaws closed
    2. Tilted down toward the rear with jaws open
    3. Raised fully with the release handle locked
    4. Tilted up toward the cab with jaws open