BC Class 1–4 Practice Test 8

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. An 18-year-old wants to drive for a taxi company. Can they get a Class 4 restricted licence?

   1. Yes, after a TaxiHost course
   2. Yes, with a parent's signature
   3. Yes, if they have held Class 5 for a year
   4. No, the minimum age is 19

2. May you retrofit manual slack adjusters on a vehicle built with automatic ones in B.C.?

   1. Yes, on trailers only
   2. No, it is illegal
   3. Yes, with a mechanic's note
   4. Yes, if they are new

3. In what language are ICBC commercial knowledge tests given?

   1. English or French, with a translator
   2. English, with a dictionary allowed
   3. English only, without assistance
   4. Any language through an interpreter

4. A heavy load sits on one side of the deck. What can happen on a wet road?

   1. Nothing, if the load is tied
   2. The truck brakes more evenly because of the weight
   3. Wheels on the light side can lock and skid
   4. The tires grip better

5. What does a diamond-shaped low-clearance sign tell you?

   1. The width of the bridge ahead
   2. The maximum load weight allowed on the bridge
   3. The speed limit for trucks
   4. The height of a structure ahead

6. You stop on a highway to pick up passengers. From how far must the bus be visible ahead and behind?

   1. At least 150 m (500 ft)
   2. At least 60 m (200 ft)
   3. At least 30 m (100 ft)
   4. At least 85 m (285 ft)

7. What does a dual foot valve do?

   1. Controls the spring brakes
   2. Doubles the braking force at every wheel
   3. Splits the system into two sections
   4. Supplies the trailer only

8. What is compounding?

   1. Using the hand valve and the foot valve at the same time
   2. Draining two reservoirs at once
   3. Heavy service braking on top of applied spring brakes
   4. Connecting two trailers to one tractor

9. When should you turn off the flashing lights and fold in the stop sign?

   1. After you start moving
   2. As soon as the entrance doors have closed
   3. When the first car stops
   4. Once passengers are aboard or across

10. 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

11. How long must dynamited brakes on a trailer without spring brakes stay applied?

    1. At least 15 minutes
    2. At least one hour
    3. At least 2 minutes
    4. Until the driver releases them

12. On a vehicle with a GVW of 5,500 kg or more, when is a front tire defective?

    1. With less than 6 mm (1/4 in) of tread
    2. Only when the cords are showing
    3. With less than 3 mm (1/8 in) of tread
    4. With less than 1.6 mm (1/16 in) of tread

13. At fast idle, how quickly must the compressor build pressure from 50 to 90 p.s.i.?

    1. Within 30 seconds
    2. Within three minutes
    3. Within one minute
    4. Within ten minutes

14. When must NSC commercial vehicles be inspected?

    1. Only before long trips
    2. Before first use each day and after the final trip
    3. Once a week, at the start of the driver's work week
    4. Only after a breakdown

15. How much time off duty must a driver take every day?

    1. At least 8 hours
    2. At least 12 hours
    3. At least 10 hours
    4. At least 6 hours

16. What is the daily driving limit under the NSC hours of service?

    1. 11 hours
    2. 13 hours
    3. 15 hours
    4. 14 hours

17. What is the correct running clearance between lining and drum?

    1. No clearance at all
    2. About one inch
    3. A few thousandths of an inch
    4. About half an inch

18. Which chain must NOT be used as a tiedown?

    1. One fitted with edge protection
    2. One rated for the cargo weight
    3. One with a locked binder
    4. One with a knot or a stretched link

19. What should an ambulance driver weigh before going through a stop signal?

    1. Only the patient's wishes and the family's
    2. Road conditions, traffic and the emergency
    3. Only the speed limit
    4. Only the time of day

20. What temperature should brake components not exceed?

    1. About 500 °C
    2. About 250 °C
    3. About 80 °C
    4. About 120 °C

21. At what pressure should the low-air warning come on during the pump-down?

    1. Exactly 80 p.s.i.
    2. At or below 40 p.s.i.
    3. At or above 60 p.s.i.
    4. At 20 p.s.i.

22. A small article 1.2 m long weighs 700 kg and is not blocked. How many tiedowns?

    1. Three
    2. None if it is heavy
    3. One
    4. Two

23. There are two left-turn lanes. Which one should a large vehicle use?

    1. The right-hand turn lane
    2. Either lane
    3. Neither; go around the block
    4. The left-hand turn lane

24. What is the maximum legal width of a vehicle and load without a permit?

    1. 2.4 m
    2. 3.1 m
    3. 2.6 m
    4. 4.4 m

25. About how much fuel can a heavy truck burn per hour of idling?

    1. None with a modern engine
    2. Up to 15 litres
    3. Up to half a litre
    4. Up to four litres

26. 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

27. 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

28. When must a school bus driver use the flashing red lights?

    1. At every railway crossing, with or without signals
    2. Only in school zones
    3. Whenever the bus is parked
    4. Whenever passengers cross the road

29. A sign tells trucks to stop and check brakes before a steep downgrade. What must you do?

    1. Slow down without stopping
    2. Turn on four-way flashers and continue
    3. Stop only if your brakes feel weak
    4. Stop in the pullout and inspect brakes and load

30. 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