Who can be fined when cargo is not properly secured?
Alberta Class 3 Practice Test – Heavy Trucks
30 original questions for Alberta Class 3: dump trucks and mixers, size and weight limits, permits, NSC cargo securement, projecting loads and parking a single-unit truck on a hill.
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Class 3 lets you drive a single motor vehicle with three or more axles, such as a tandem dump truck or a concrete mixer, and tow a trailer without air brakes. This drill combines chapter 6 of the Commercial Driver's Guide (loading and unloading dump vehicles, mixer stability, hill parking) with the truck rules from chapters 2 and 4: maximum width, height and length, overweight permits, NSC Standard 10 cargo securement and flags on projecting loads.
Questions on the real test can come from any chapter, so also practise the shared topics on trip inspections, hours of service and railway crossings. A Class 3 truck with air brakes also needs the air brake (Q) endorsement or a course completion certificate for the road test.
All 30 questions in this test
Every question and its answer choices. The correct answers and explanations appear when you take the test above.
Who can be fined when cargo is not properly secured?
- Driver, carrier or shipper
- Only the driver
- Only the vehicle owner
- Only the carrier
What is three-point contact when getting out of a truck?
- Three limbs always touching the vehicle
- One hand on the door and two feet on the ground
- Both feet and the seat stay on the vehicle
- Jumping with knees bent to land safely
From what registered weight must commercial trucks meet the cargo securement rules?
- Over 6,000 kg
- Over 4,500 kg
- Over 11,794 kg
- Over 2,300 kg
Why does a loaded concrete mixer need special care on turns and ramps?
- It is top-heavy and unstable
- Mixers have no power steering
- Its brakes are weaker than other trucks'
- Concrete makes the tires lose pressure
Your truck is 2.3 m wide. What lighting does the width require?
- None, since it is still under the 2.6 m maximum
- Flashing amber beacons mounted on the cab roof
- Amber clearance lights front, red at the rear
- White clearance lights all around
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 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
The load is stuck in the raised box. What should you do?
- Lower the box first
- Climb in and loosen it with a shovel
- Drive forward sharply to shake it loose
- Raise the box higher and wait
What is the maximum length of a straight truck?
- 12.5 m
- 16.2 m
- 10.5 m
- 14.0 m
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
Which conditions can a special permit for oversized equipment set?
- Routes, travel times and equipment
- Only the licence class of the driver
- Only the maximum speed
- Only the permit fee you must pay
What must you check before raising the box near a site?
- Overhead wires
- The radio frequency
- Only the tire pressures
- The fuel gauge
You are hauling long logs and must turn at an intersection. What does the guide advise?
- Turn faster so the logs swing less
- Let traffic behind pass first
- Drive straight and turn at the next block
- Signal early and cut the corner short
You are about to dump into a hopper. What should you do first?
- Back in quickly to save time
- Check that the hopper is empty
- Raise the box partway to test the hoist
- Sound the horn three times
You need to move an overweight load. What must you get?
- Nothing if you drive at night
- A signed letter from the shipper
- A special permit
- A police escort and nothing else
Which ground conditions raise the risk of a dump truck tipping over?
- Level asphalt pavement
- Frozen, flat ground
- Soft or uneven fill
- Dry, well-packed gravel
What is the maximum overall length of a tractor semi-trailer?
- 23 m
- 27.5 m
- 20 m
- 25 m
When may you raise the dump box to unload?
- When parked across a slope
- Once the guide waves you on, on any ground
- Only when the truck is on level ground
- Whenever the tailgate is open
A load shifts in the trailer enough to affect the unit's stability. Under the securement rules, this means:
- The rules allow it if nothing falls off
- The cargo was not properly secured
- Only the shipper is responsible
- It is legal if the trailer is closed
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
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
Your guide is directing you and you hit an object. Who is responsible for the vehicle's movement?
- The guide
- The site supervisor
- The driver
- The company owner only
Your load extends 1.8 m past the rear of the truck in daylight. What must you attach?
- An orange triangle on the load
- A red flag, 30 cm square or larger
- Nothing below 2 m
- A white reflector on the load
Why is a load stuck at the back of a raised box with the tailgate closed dangerous?
- It only slows unloading
- It can tip the truck over backwards
- It makes the box lower by itself
- It overloads the front axle
Which standard sets the cargo securement rules adopted in Alberta?
- CSA Standard D250
- NSC Standard 10
- NSC Standard 13
- The Highway Traffic Act
A backing alarm is required around workers on foot. What must be true of it?
- It can be switched off on quiet sites
- It must be louder than the horn
- It only sounds in low light
- It is automatic and has no shut-off switch
How often must trucks and trailers registered at 11,794 kg or more be inspected under the Vehicle Inspection Program?
- Every 12 months
- Every two years
- Every 24 hours
- Every six months
The material in your dump box is piled at one end. What must you do before moving?
- Have it evenly distributed in the box
- Raise the box slightly to level it
- Drive slowly so it settles
- Tarp it and leave as is
What is the maximum overall length for a TAC A, B or C train combination?
- 21 m
- 25 m
- 31 m
- 23 m
Where should your guide stand while you back up to unload?
- Outside at the rear, in your view
- In the passenger seat, watching the mirror
- In front of the truck, facing you
- Inside the dump box
FAQ
Alberta Class 3 (heavy truck) practice test: common questions
What can I drive with an Alberta Class 3 licence?
Anything a Class 5 holder may drive, a single motor vehicle with three or more axles, and such a vehicle towing a trailer that has no air brakes. You may not carry passengers for hire or drive a vehicle seating more than 15 with passengers aboard.
Do I need a medical report for Class 3?
Alberta's medical report requirement applies to Class 1, 2 and 4 upgrades. Class 3 applicants still take a vision test and must report any condition that could affect safe driving.
What vehicle do I need for the Class 3 road test?
A single motor vehicle with three or more axles; a three-axle recreational vehicle may not be used. If it has air brakes you need the Q endorsement or an air brake course certificate.
Keep practising
- Alberta Class 1 knowledge test practice40 original practice questions on chapter 4 of Alberta's Commercial Driver's Guide: stopping distance, air brake basics, coupling, A, B and C trains, off-tracking and reversing.
- Alberta Class 2 (bus) practice test30 original questions on chapter 5 of Alberta's Commercial Driver's Guide: bus breakdowns, turns, turnarounds, U-turn limits, school bus lights, loading and railway crossings.
- Alberta Class 4 (taxi, ambulance) practice test30 original questions for Alberta Class 4: emergency vehicle rules, sirens and lights, taxi duties, seat belt exemption, reserved lanes, for-hire rules and transporting passengers safely.
- Alberta Class 1–4 study guide
- How to get a Class 1 licence in Alberta
- 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 Practice Test 130 questions with explanations
- Alberta Class 1–4 Practice Test 230 questions with explanations
- Alberta Class 1–4 Practice Test 330 questions with explanations
Practice by topic
- 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.
- Tractor-trailer driving skillsFollowing distance, low- and high-speed off-tracking, right and left turns, curves, parking and hill parking, reversing methods, and breakdown warning devices.
- Size, weight and cargo securementWidth, height and length limits, permits for oversize or overweight loads, NSC Standard 10 cargo securement, flags and lights on projecting loads, and annual truck inspections.
- Driving a busBreakdowns, turns, reversing and turnarounds, U-turn limits for school buses, parking on a hill, seating and door rules, refuelling and evacuation drills.
- School bus stops and railway crossingsAmber and red flashing lights, the stop arm, loading and unloading steps, students crossing in front of the bus, and how a school bus stops at railway crossings.
- Dump trucks and mixersThree-point contact, securing a load before moving, backing and unloading a dump box safely, tip-over risks, concrete mixer stability and parking a single-unit truck on a hill.
- Ambulances, taxis and reserved lanesWhen an emergency vehicle may break traffic rules, sirens and lights, defensive driving for ambulances, taxi duties and refusals, the taxi seat belt exemption, reserved lanes and the meaning of for hire.
- Transporting passengersFitness to drive, zero alcohol tolerance, road rage and difficult passengers, passenger safety before, during and after the trip, people with disabilities, wheelchairs and scooters, and child restraints.
- Transporting dangerous goodsTraining certificates, the nine hazard classes and their divisions, what to do after a dangerous occurrence, where shipping documents must be kept, and safety marks.
- Distraction, fatigue, railway crossings and fireThe distracted driving law for commercial drivers, signs and prevention of fatigue, crossing railway tracks in a large vehicle, and using a fire extinguisher.
- Fueling and fuel efficiencySafe fueling of gasoline, diesel and propane vehicles, fueling with passengers, and driving and maintenance habits that save fuel.