A 3.65 m, 600 kg article is not blocked in front. How many tiedowns does it need?
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.
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- Every answer explained
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- Set 9 of 11
- 30 questions
- Instant feedback
All 30 questions in this test
Every question and its answer choices. The correct answers and explanations appear when you take the test above.
A 3.65 m, 600 kg article is not blocked in front. How many tiedowns does it need?
- One
- Four
- Two
- Three
How should you choose your gear for going down a hill?
- Neutral, using only the brakes
- A lower gear than you used to climb it
- The same gear you used to climb it
- A higher gear to save fuel
The low-air warning must come on before pressure drops below what?
- 40 p.s.i.
- 60 p.s.i.
- 90 p.s.i.
- 20 p.s.i.
Which line fills the trailer reservoirs at full tractor pressure?
- The supply (emergency) line
- The electrical cable
- The control (service) line
- The hydraulic line
Where may a portable scale be set up?
- Only on private property
- Only at border crossings
- Only at fixed scale sites
- On any public road
When must the light at each passenger entrance come on?
- When the door opens
- When the engine starts
- Only for school routes
- Only at night
How far from a railway crossing should you stop when you must stop?
- 5 to 15 m from the crossing
- Right at the crossing arm
- 1 to 3 m from the nearest rail
- At least 30 m from the crossing
Your load of dangerous goods starts leaking. Whom do you call first?
- The consignee at delivery
- Police or the Provincial Emergency Program
- The vehicle's insurer
- Your employer's dispatcher, then the shipper
Using the applied stroke method on a Type 30 chamber, when does the brake need adjusting?
- When applied stroke is 1 inch
- When applied stroke is under ½ inch
- When applied stroke is 1¼ inches
- When applied stroke exceeds 1¾ inches
Coupling a set of doubles, which trailer goes directly behind the tractor?
- The lighter trailer
- The heavier trailer
- The longer of the two trailers
- The empty trailer
Which vehicles may use flashing blue lights?
- Ambulances and fire trucks
- Snowplows and sanders
- Police vehicles only
- Tow trucks and pilot cars
A combination has 16 brakes and two are out of adjustment. What happens?
- The ABS balances it out fully
- The others overwork and the stop is longer
- Nothing, 14 brakes are enough
- The vehicle stops sooner on that side
Where is an air dryer installed?
- On the trailer glad hands
- Inside the brake drum
- Between the compressor and the first reservoir
- Between the foot valve and the chambers
In B.C., smoking is illegal in any vehicle carrying a passenger under what age?
- 12
- 19
- 16
- 21
About how much force does the coil spring in most spring brake chambers exert?
- 5,000 to 6,000 pounds
- 1,500 to 2,000 pounds
- About 500 pounds
- 150 to 200 pounds
Since when have electronic logging devices been required in B.C., unless exempt?
- October 18, 2021
- August 1, 2023
- April 1, 2025
- January 1, 2020
How should the extremities of an oversize load be marked by day?
- White reflective tape
- Orange triangles on each corner
- Red flags, 30 cm square or larger
- Amber lights only
Who may supervise a commercial learner practising in a Class 1 tractor-trailer?
- Any Class 5 driver over 25
- A Class 3 holder with code 15
- Any driving instructor, of any class
- A Class 1 holder aged at least 19
What bus is used for a full B.C. Class 2 road test with no passenger restriction?
- A bus seating at least 36 adults
- A bus seating at least 25 adults
- Any full-size passenger van
- A bus with at least two axles
May a Class 5 driver drive a passenger vehicle used as a school bus?
- Only on rural routes
- Yes, any size, as long as no passengers ride
- Only if it seats 10 or fewer, driver included
- No, never
May a large truck drive over the centre apron of a roundabout?
- No, it is a pedestrian area
- Only with a police escort
- Yes, it is built for large vehicles
- Only when the roundabout is empty
Which vehicle needs a Class 3 licence in B.C.?
- A two-axle pickup towing a light trailer
- A dump truck with more than two axles
- A taxi carrying paying passengers
- A bus carrying 30 passengers
When must a taxi be clean and sanitary?
- Only before inspections
- Only after a passenger complains
- At all times
- Once a week
There is a fire under the hood of your truck. How should you fight it?
- Open the hood wide first to reach the flames
- Wait for it to burn out
- Spray from below or through the grille
- Throw water on the engine
When may an ambulance driver use flashing red lights to get the right-of-way?
- When on a call or carrying a patient
- Whenever returning to the station after a call
- In heavy traffic at any time
- Only at night
After coupling, why go under the trailer with a flashlight?
- To check the trailer's registration plate and decal
- To check the jaws are closed on the kingpin
- To look for the spare tire
- To adjust the brakes by hand
Why turn the steering wheel back once the trailer begins to turn while backing?
- To stop the trailer from moving
- To make the trailer turn more sharply into the space
- So the tractor follows and avoids a jackknife
- To straighten the landing gear
What application pressure is held during the leakage test?
- 90 to 100 p.s.i. for one minute
- Full pressure for ten minutes
- 20 p.s.i. for five minutes
- 60 p.s.i. for 30 seconds
A passenger arrives with a guide dog. What must you do?
- Ask the dog to ride in the trunk
- Refuse unless pre-booked
- Charge an extra fare
- Let the dog ride and give it safe space
How soon must trip inspection reports be given to the carrier?
- Within 60 days
- Within 7 days
- Within 20 days
- Within 24 hours
All BC Class 1–4 practice tests
- BC Class 1–4 Mock Exam 1 – 50 QuestionsUntimed practice · answers explained
- BC Class 1–4 Mock Exam 2 – 50 QuestionsUntimed practice · answers explained
- BC Class 1–4 Mock Exam 3 – 50 QuestionsUntimed practice · answers explained
- BC Class 1–4 Mock Exam 4 – 50 QuestionsUntimed practice · answers explained
- BC Class 1–4 Mock Exam 5 – 50 QuestionsUntimed practice · answers explained
- Licence classes, endorsements and testingClass 1 to 4 and what each covers, minimum ages, the air brake (code 15) and heavy trailer (code 20) endorsements, the driving record and medical rules, learner supervision, MELT and retest waiting periods.
- Heavy vehicle brakingHow brakes turn motion into heat, stopping time and following distance, speed and weight effects, brake fade, retarders, downgrades, water, runaway lanes and ABS.
- Basic commercial driving skillsFollowing distance, danger zones, off track and turns, curves, roundabouts, backing, mirrors, emergency vehicles, double-clutching, railway crossings and night driving.
- Tires, warnings and personal safetyTire pressure and tread limits, wheel checks, required braking systems, flashing lights, warning devices for disabled vehicles, carbon monoxide, seatbelts, phones, impoundment and fire fighting.
- Fuel-efficient drivingStarting and warming up a diesel, smart shifting and speed, idling, tire pressure, en route checks and vehicle choices that save fuel.
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.