BC Class 1–4 overview

BC Class 1–4 Practice Test 9

30 questions on cargo securement, heavy vehicle braking, dual air brake systems, tractor-trailer air systems, dimensions, weights and permits and more.

  • Set 9 of 11
  • 30 questions
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Practice test 9 · Question 1Score 0/0

A 3.65 m, 600 kg article is not blocked in front. How many tiedowns does it need?

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. A 3.65 m, 600 kg article is not blocked in front. How many tiedowns does it need?

    1. One
    2. Four
    3. Two
    4. Three
  2. How should you choose your gear for going down a hill?

    1. Neutral, using only the brakes
    2. A lower gear than you used to climb it
    3. The same gear you used to climb it
    4. A higher gear to save fuel
  3. The low-air warning must come on before pressure drops below what?

    1. 40 p.s.i.
    2. 60 p.s.i.
    3. 90 p.s.i.
    4. 20 p.s.i.
  4. Which line fills the trailer reservoirs at full tractor pressure?

    1. The supply (emergency) line
    2. The electrical cable
    3. The control (service) line
    4. The hydraulic line
  5. Where may a portable scale be set up?

    1. Only on private property
    2. Only at border crossings
    3. Only at fixed scale sites
    4. On any public road
  6. When must the light at each passenger entrance come on?

    1. When the door opens
    2. When the engine starts
    3. Only for school routes
    4. Only at night
  7. How far from a railway crossing should you stop when you must stop?

    1. 5 to 15 m from the crossing
    2. Right at the crossing arm
    3. 1 to 3 m from the nearest rail
    4. At least 30 m from the crossing
  8. Your load of dangerous goods starts leaking. Whom do you call first?

    1. The consignee at delivery
    2. Police or the Provincial Emergency Program
    3. The vehicle's insurer
    4. Your employer's dispatcher, then the shipper
  9. Using the applied stroke method on a Type 30 chamber, when does the brake need adjusting?

    1. When applied stroke is 1 inch
    2. When applied stroke is under ½ inch
    3. When applied stroke is 1¼ inches
    4. When applied stroke exceeds 1¾ inches
  10. 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
  11. Which vehicles may use flashing blue lights?

    1. Ambulances and fire trucks
    2. Snowplows and sanders
    3. Police vehicles only
    4. Tow trucks and pilot cars
  12. A combination has 16 brakes and two are out of adjustment. What happens?

    1. The ABS balances it out fully
    2. The others overwork and the stop is longer
    3. Nothing, 14 brakes are enough
    4. The vehicle stops sooner on that side
  13. Where is an air dryer installed?

    1. On the trailer glad hands
    2. Inside the brake drum
    3. Between the compressor and the first reservoir
    4. Between the foot valve and the chambers
  14. In B.C., smoking is illegal in any vehicle carrying a passenger under what age?

    1. 12
    2. 19
    3. 16
    4. 21
  15. About how much force does the coil spring in most spring brake chambers exert?

    1. 5,000 to 6,000 pounds
    2. 1,500 to 2,000 pounds
    3. About 500 pounds
    4. 150 to 200 pounds
  16. Since when have electronic logging devices been required in B.C., unless exempt?

    1. October 18, 2021
    2. August 1, 2023
    3. April 1, 2025
    4. January 1, 2020
  17. How should the extremities of an oversize load be marked by day?

    1. White reflective tape
    2. Orange triangles on each corner
    3. Red flags, 30 cm square or larger
    4. Amber lights only
  18. Who may supervise a commercial learner practising in a Class 1 tractor-trailer?

    1. Any Class 5 driver over 25
    2. A Class 3 holder with code 15
    3. Any driving instructor, of any class
    4. A Class 1 holder aged at least 19
  19. What bus is used for a full B.C. Class 2 road test with no passenger restriction?

    1. A bus seating at least 36 adults
    2. A bus seating at least 25 adults
    3. Any full-size passenger van
    4. A bus with at least two axles
  20. May a Class 5 driver drive a passenger vehicle used as a school bus?

    1. Only on rural routes
    2. Yes, any size, as long as no passengers ride
    3. Only if it seats 10 or fewer, driver included
    4. No, never
  21. May a large truck drive over the centre apron of a roundabout?

    1. No, it is a pedestrian area
    2. Only with a police escort
    3. Yes, it is built for large vehicles
    4. Only when the roundabout is empty
  22. Which vehicle needs a Class 3 licence in B.C.?

    1. A two-axle pickup towing a light trailer
    2. A dump truck with more than two axles
    3. A taxi carrying paying passengers
    4. A bus carrying 30 passengers
  23. When must a taxi be clean and sanitary?

    1. Only before inspections
    2. Only after a passenger complains
    3. At all times
    4. Once a week
  24. There is a fire under the hood of your truck. How should you fight it?

    1. Open the hood wide first to reach the flames
    2. Wait for it to burn out
    3. Spray from below or through the grille
    4. Throw water on the engine
  25. When may an ambulance driver use flashing red lights to get the right-of-way?

    1. When on a call or carrying a patient
    2. Whenever returning to the station after a call
    3. In heavy traffic at any time
    4. Only at night
  26. After coupling, why go under the trailer with a flashlight?

    1. To check the trailer's registration plate and decal
    2. To check the jaws are closed on the kingpin
    3. To look for the spare tire
    4. To adjust the brakes by hand
  27. 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
  28. What application pressure is held during the leakage test?

    1. 90 to 100 p.s.i. for one minute
    2. Full pressure for ten minutes
    3. 20 p.s.i. for five minutes
    4. 60 p.s.i. for 30 seconds
  29. A passenger arrives with a guide dog. What must you do?

    1. Ask the dog to ride in the trunk
    2. Refuse unless pre-booked
    3. Charge an extra fare
    4. Let the dog ride and give it safe space
  30. How soon must trip inspection reports be given to the carrier?

    1. Within 60 days
    2. Within 7 days
    3. Within 20 days
    4. Within 24 hours

About this practice test

How many questions are in BC Class 1–4 practice test 9?

30 original multiple-choice practice questions covering cargo securement, heavy vehicle braking, dual air brake systems, tractor-trailer air systems, dimensions, weights and permits, ambulances and special vehicles, basic commercial driving skills, dangerous goods and signs for commercial drivers, air brake adjustment, backing and handling trailers, tires, warnings and personal safety, air brake components, operating a bus, spring parking brakes, hours of service, licence classes, endorsements and testing, school buses, taxis, limousines and ride-hailing, coupling and uncoupling, air brake pre-trip test, trip inspections and reports. Each answer includes an explanation. This mixed practice set does not reproduce the official exam format or predict an official score.

Are the questions the same every time?

Yes. Practice test 9 always has the same 30 questions, so you can repeat it until you get them all right. The other 10 sets use different questions.

Are these real test questions?

No. The official question bank is not published. These are original questions written from the official handbook, which is what the real BC Class 1–4 test is based on.