BC Class 1–4 Practice Test 6

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. Why is a concentrated heavy load placed against the cab a problem?

   1. It improves steering control by adding front weight
   2. It protects the cab in a crash
   3. It can bend the frame and overload the front tires
   4. It lowers the centre of gravity

2. 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

3. What colour is the dash parking brake control on most vehicles?

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

4. How are bus passengers usually injured?

   1. Collisions with other buses
   2. Abrupt stops, starts or turns
   3. Fires in the engine bay
   4. Falling out of windows

5. For a Class 6.2 infectious substance spill, whom should you call for technical advice?

   1. The nearest hospital
   2. WorkSafeBC
   3. ICBC claims
   4. CANUTEC

6. During the pump-down, before what pressure must the governor cut in?

   1. 100 p.s.i.
   2. 80 p.s.i.
   3. 45 p.s.i.
   4. 60 p.s.i.

7. 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

8. Which licence class does NOT allow you to drive an ambulance?

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

9. Since when have all air-braked commercial trucks and trailers been built with automatic slack adjusters?

   1. 1980
   2. 2000
   3. 1996
   4. 2010

10. 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

11. On a multi-day trip, when is a new trip inspection report due?

    1. By the first rest stop of each later day
    2. Only at the very end of the multi-day trip
    3. Only if a defect appears
    4. Every 1,000 km

12. Which vehicles must have ABS in Canada?

    1. All trucks and buses built since 1990, whatever their weight
    2. Only tractors that pull double trailers
    3. Trucks and buses over 4,560 kg built since April 2000
    4. Only school buses and coaches

13. Above how many occupants must a vehicle have an emergency exit door or windows?

    1. More than 25
    2. More than 10 passengers only
    3. More than 12, including the driver
    4. More than 6

14. How much fuel is wasted for every 10 p.s.i. of tire underinflation?

    1. Almost none
    2. About five per cent
    3. About ten per cent
    4. About one per cent

15. How often should school bus brakes be tested?

    1. Every week
    2. Every month
    3. Only at inspection
    4. Every day

16. What does GVW mean?

    1. The empty weight of the vehicle
    2. The vehicle plus its load
    3. The manufacturer's maximum rating
    4. The weight on the steering axle

17. What is the minimum following time for a taxi, limousine or ambulance in good conditions?

    1. One second
    2. Two seconds
    3. Four seconds
    4. Five seconds

18. About how much pushrod force does a Type 30 brake chamber give at 100 p.s.i.?

    1. About 30,000 pounds
    2. About 300 pounds
    3. About 1,000 pounds
    4. About 3,000 pounds

19. How many reservoirs do most dual air brake systems have?

    1. Three
    2. Five
    3. Two
    4. One

20. How many separate braking systems must every motor vehicle have?

    1. At least two, both air-operated
    2. At least two, one of them mechanical
    3. Three, two of them hydraulic
    4. One, if it has air brakes

21. What must every trailer's emergency system do if the trailer separates?

    1. Release all trailer brakes
    2. Fully apply the trailer brakes
    3. Lower the landing gear
    4. Sound a warning horn

22. Who must certify a driver's dangerous goods training?

    1. ICBC
    2. The shipper
    3. The current employer
    4. Any driving school

23. Is a cab protector a front-end structure under Standard 10?

    1. Yes, if it is steel
    2. No
    3. Yes, on logging trucks
    4. Yes, always

24. Which vehicles must report to a weigh scale when directed?

    1. Commercial vehicles licensed over 5,500 kg
    2. Every vehicle with dual rear wheels, any weight
    3. Only tractor-trailers
    4. Only vehicles with dangerous goods

25. How long is a passed air brake knowledge test result valid if the endorsement is not added?

    1. Six months
    2. One year
    3. Two years
    4. It never expires

26. How do you make an emergency stop in a vehicle with ABS?

    1. Apply the trailer brakes only
    2. Pump the pedal quickly to stop the wheels locking
    3. Lock the wheels, then release
    4. Firm, steady pressure; do not pump

27. Which driving record keeps you from applying for a B.C. commercial licence?

    1. Two speeding tickets in five years
    2. One parking ticket in the past year
    3. Four or more penalty-point offences in two years
    4. A collision you were not responsible for

28. A passenger uses a wheelchair and has an assistant. To whom should you speak?

    1. To whoever pays the fare
    2. Only to the assistant
    3. Directly to the passenger
    4. To the dispatcher

29. When should you check and adjust tire pressure?

    1. By kicking each tire
    2. Only at the annual inspection
    3. When the tires are cool, using a gauge
    4. Right after highway driving, while they are warm

30. What is the daily distance limit for the personal use exemption?

    1. 160 km
    2. 50 km
    3. 75 km
    4. 25 km