About how much fuel is wasted for every 10 psi of tire under-inflation?
Alberta Class 1–4 Practice Test 9
30 questions on fueling and fuel efficiency, coupling, trains and long combinations, driving a bus, size, weight and cargo securement, dump trucks and mixers and more.
- No sign-up
- Every answer explained
- Independent · not a government site
- Set 9 of 9
- 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.
About how much fuel is wasted for every 10 psi of tire under-inflation?
- 10 per cent
- 5 per cent
- 1 per cent
- 0.1 per cent
You have only one wheel chock when uncoupling. Where should it go?
- Beside the fifth wheel
- Behind the semi-trailer wheel
- In front of the semi-trailer wheel
- Under the tractor steer wheel
In an urban area, which reversing move is illegal?
- Backing slowly on a quiet street
- Backing into an intersection
- Backing into a marked parking stall
- Backing with a guide standing behind
What is the maximum width of a commercial vehicle in Alberta without a permit?
- 2.6 m
- 2.05 m
- 2.4 m
- 3.0 m
You park downhill on the right side of the road, with or without a curb. How do you turn the front wheels?
- Straight ahead
- To the left
- Left with a curb, right without
- To the right
What causes high-speed off-tracking?
- A heavy load at the front
- Centrifugal force pushing the rear outward
- Low tire pressure on the steering axle tires
- Turning the wheel too slowly
What makes a good en route check stop?
- A wide gravel shoulder partway up a long hill
- One you can enter and leave without backing
- Any spot with a view of traffic
- The bottom of a long hill
What is the maximum wheelbase of a truck-tractor?
- 5.0 m
- 6.2 m
- 7.5 m
- 12.5 m
A passenger vehicle needs a Safety Fitness Certificate when its seating capacity, counting the driver, is at least:
- 15
- 7
- 11
- 25
During a slow city turn, which way do the rear tires of a tractor-trailer track?
- Inside the path of the steering tires
- Outside the path of the steering tires
- It depends only on the load
- Exactly in the steering tire path
A passenger is upset about a delay. Which response does the guide suggest?
- "That's not my problem."
- "I understand your concern."
- "Listen to me."
- "Sit down and be quiet."
Which driving movement does the guide list as a common cause of ambulance collisions?
- Reversing
- Using headlights
- Stopping at intersections
- Using the left lane
Why are large vehicles at greater risk at railway crossings?
- They ride higher than the train
- Their horns are quieter than a car's
- They are exempt from crossing signals
- They need more time and room
When do you turn off the flashing lights after a stop?
- Once you start moving
- After all students are seated
- As soon as the door closes
- When the stop arm folds itself
A carrier has one truck that sometimes runs into British Columbia. Which hours-of-service rules apply to its drivers who never leave Alberta?
- Whichever rules each driver prefers
- No rules if they stay in Alberta
- Federal rules for all its drivers
- Alberta rules for in-province drivers
How far from the curb may the wheels of a parked bus be?
- No more than 50 cm
- No more than 30 cm
- No more than 1 m
- No more than 15 cm
If you double the weight of a vehicle, how much more braking force is needed to stop it?
- Twice as much
- Four times as much
- Eight times as much
- The same, thanks to better traction
After a dangerous goods leak from your vehicle, whom must you notify immediately?
- Only your employer, in writing by the end of the day
- Police, the Alberta CIC, and the owner, employer and consignor
- Only the fire department and the nearest hospital
- Only the consignee at delivery
Before leaving the site, what should you do about rocks on the tailgate and hitch?
- Sweep or brush off all loose material
- Drive fast to blow them off
- Report them at the scale
- Leave them; they fall off at speed
Since September 1, 2022, when may a driver operate a school bus without an S endorsement?
- With two passengers at most, none of them students or minors
- Whenever the whole trip is shorter than 50 kilometres
- When a teacher rides on the bus
- On weekends, holidays and other days without classes
The semi-trailer has no spring brakes on any axle. What must you do before backing under it?
- Hook up the air lines and set its brakes
- Raise the landing gear fully before backing
- Chock only the tractor wheels
- Back under it faster so the jaws lock firmly
At night, what is required on the end of a load that sticks out 1.5 m or more behind the vehicle?
- A red light
- An amber flashing light
- A red flag only
- A white light
At what speed should you enter a curve?
- Any speed, then brake hard if needed
- One needing no braking in the curve
- The posted limit, braking hard once in the curve
- Slightly above the limit to keep momentum
On a multi-lane road, which lane should a school bus use when stopping at a railway crossing?
- The right-most lane
- The left-most lane
- The centre lane
- Any lane with less traffic
Approaching an intersection with cross traffic during an emergency run, what should an ambulance driver do?
- Keep speed and rely on the siren
- Switch off the siren to avoid startling drivers
- Slow down, stop briefly if practical, and make eye contact
- Speed up to clear it quickly
During a circle check, what should you see at the fifth wheel?
- The slider pin left unlocked
- A small gap of daylight between the plate and the apron
- Plate flush with the apron, jaws locked on the kingpin
- Jaws left open so the trailer can pivot in turns
A 50-year-old Class 1 driver has a medical report on file. How often must they file a new one?
- Every five years
- Every two years
- Every three years
- Every year
What should a passenger driver do before every trip?
- Check the fare tables
- Plan the radio playlist
- Ask passengers to rate them
- Assess their own fitness to drive
You park a single-unit dump truck uphill on the right side of a road with no curb. Which way do the front wheels go?
- Straight ahead
- Toward the centre line
- To the right
- To the left
If a school bus has a strobe lamp, when must it be on?
- Only while students cross
- Only on gravel or snowy roads
- Only at night on rural roads
- In fog, blizzards or smoke
All Alberta Class 1–4 practice tests
- Alberta Class 1–4 Mock Exam 1 – 30 QuestionsUntimed practice · answers explained
- Alberta Class 1–4 Mock Exam 2 – 30 QuestionsUntimed practice · answers explained
- Alberta Class 1–4 Mock Exam 3 – 30 QuestionsUntimed practice · answers explained
- Alberta Class 1–4 Mock Exam 4 – 30 QuestionsUntimed practice · answers explained
- Alberta Class 1–4 Mock Exam 5 – 30 QuestionsUntimed practice · answers explained
- Commercial licence classes and requirementsClasses 1 to 4 and what each lets you drive, the Q (air brake) and S (school bus) endorsements, minimum age, medical reports, the knowledge, vision and road tests, and learner supervision rules.
- National Safety Code and hours of serviceSafety Fitness Certificates, carrier safety and maintenance plans, Alberta and federal hours-of-service limits, daily logs and their exemptions, and the Vehicle Inspection Program.
- Trip inspections and the air brake checkWhich vehicles need daily trip inspections, minor and major defects, the 24-hour report, circle-check items such as tire tread and the fifth wheel, the in-cab air brake test values, check stops, scales and post-trip checks.
- Braking and stopping heavy vehiclesTraction, brake condition, weight and speed, the four parts of total stopping distance including air brake lag, and safe air brake use on grades and with the trailer hand valve.
- Coupling, trains and long combinationsCoupling and uncoupling a tractor and semi-trailer or a pintle hitch, A, B and C trains, trailer order by weight, and the rules for long combination vehicles.
About this practice test
How many questions are in Alberta Class 1–4 practice test 9?
30 original multiple-choice practice questions covering fueling and fuel efficiency, coupling, trains and long combinations, driving a bus, size, weight and cargo securement, dump trucks and mixers, tractor-trailer driving skills, trip inspections and the air brake check, national safety code and hours of service, transporting passengers, ambulances, taxis and reserved lanes, distraction, fatigue, railway crossings and fire, school bus stops and railway crossings, braking and stopping heavy vehicles, transporting dangerous goods, commercial licence classes and requirements. 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 8 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 Alberta Class 1–4 test is based on.