Ontario AZ Licence Practice Test 2026: Test de práctica 3

Test de práctica 3 de 6 de Ontario AZ Licence Practice Test: 30 preguntas más con respuestas y explicaciones.

Vehículo comercial
Ontario
150 preguntas
Revisado el 10 de octubre de 2026

Pregunta 1 de 30
Every driver must have taken at least how much off-duty time in the preceding 14 days?
- 36 consecutive hours
- 72 consecutive hours
- 24 consecutive hours
- 8 consecutive hours
Ver respuesta
Respuesta: C. 24 consecutive hours
All drivers must have had at least 24 consecutive hours off duty within the past 14 days.
Pregunta 2 de 30
How many consecutive hours off duty reset a 7-day cycle?
- 48
- 72
- 24
- 36
Ver respuesta
Respuesta: D. 36
Resetting the 7-day cycle takes 36 consecutive hours off duty. The 14-day cycle needs 72.
Pregunta 3 de 30
How many consecutive hours off duty reset a 14-day cycle?
- 72
- 36
- 96
- 48
Ver respuesta
Respuesta: A. 72
Resetting the 14-day cycle takes 72 consecutive hours off duty.
Pregunta 4 de 30
When may a driver switch from one cycle to the other?
- Only on weekends, after any 8-hour break
- At any time during a shift, as long as it is in the log
- Once a day, at midnight, without any off-duty time
- Only when starting a new cycle, after the required reset
Ver respuesta
Respuesta: D. Only when starting a new cycle, after the required reset
A driver may switch cycles only when starting a new cycle.
Pregunta 5 de 30
You spend two hours waiting for your trailer to be loaded at a warehouse. How is that time recorded?
- As on-duty time, not driving
- As sleeper berth time
- It does not need to be recorded
- As off-duty time
Ver respuesta
Respuesta: A. As on-duty time, not driving
On-duty time includes loading, unloading, inspections and waiting for loading or unloading.
Pregunta 6 de 30
Which of these is one of the four duty statuses in a daily log?
- Off duty in a sleeper berth
- Waiting for weather
- Personal errands while driving
- Training time
Ver respuesta
Respuesta: A. Off duty in a sleeper berth
The four statuses are off duty (not in a sleeper berth), off duty in a sleeper berth, on duty driving, and on duty not driving.
Pregunta 7 de 30
When may a driver skip keeping a daily log?
- When the truck is empty for the whole day, wherever it goes
- When they drive only on weekends and stay inside Ontario all day
- When they stay within 160 km, return to the start and work for one operator that day
- When they drive less than 500 km in the day, for any number of operators
Ver respuesta
Respuesta: C. When they stay within 160 km, return to the start and work for one operator that day
The log exemption needs all three: within 160 km, back to the same place, one operator. The operator must still keep records.
Pregunta 8 de 30
Which item must a daily log include?
- The names and addresses of every customer
- Odometer readings at the start and end of the day
- The fuel price paid and the fuel used that day
- The weather and road conditions for each hour
Ver respuesta
Respuesta: B. Odometer readings at the start and end of the day
A daily log includes odometer readings, total distance, plate numbers, the cycle and each duty status change.
Pregunta 9 de 30
Which vehicle is exempt from Ontario's hours-of-service rules?
- A school bus
- A dump truck over 4,500 kg
- A tractor-trailer hauling freight
- A motor home
Ver respuesta
Respuesta: D. A motor home
Motor homes, tow trucks, ambulances and some other vehicles are exempt from hours-of-service rules.
Pregunta 10 de 30
Ontario's cargo securement rules are based on which national standard?
- The Highway Code
- National Safety Code Standard 1
- The Canadian Electrical Code
- National Safety Code Standard 10
Ver respuesta
Respuesta: D. National Safety Code Standard 10
Ontario's Security of Loads regulation adopts National Safety Code Standard 10 for cargo securement.
Pregunta 11 de 30
After you start a trip, when must you first stop to check your cargo and tiedowns?
- Within the first 10 km
- After 500 km
- Only at the destination
- Within the first 80 km
Ver respuesta
Respuesta: D. Within the first 80 km
Under the cargo securement standard, you check the cargo and its securement within the first 80 km of the trip.
Pregunta 12 de 30
After the first check, how often must you re-check cargo securement during a trip?
- Every 1,000 km, or once a week, whichever comes first
- At a duty status change, or after 3 hours or 240 km, whichever is first
- Once a day, at the start of your shift only
- Only if the load shifts or one of the tiedowns breaks
Ver respuesta
Respuesta: B. At a duty status change, or after 3 hours or 240 km, whichever is first
Re-check the cargo when your duty status changes or after 3 hours or 240 km of driving, whichever comes first.
Pregunta 13 de 30
What must the total (aggregate) working load limit of your tiedowns be?
- At least 10% of the cargo weight
- At least twice the truck's weight
- At least half the weight of the cargo
- Exactly the weight of the cargo
Ver respuesta
Respuesta: C. At least half the weight of the cargo
The aggregate working load limit of the tiedowns must be at least 50% of the cargo's weight.
Pregunta 14 de 30
A single article of cargo is 1.2 m long, weighs 400 kg and is not blocked at the front. How many tiedowns does it need at minimum?
- Two
- Four
- One
- Three
Ver respuesta
Respuesta: C. One
An article 1.52 m long or less and 500 kg or less needs at least one tiedown when it is not blocked at the front.
Pregunta 15 de 30
A securement system must be strong enough to hold the cargo against which forward force?
- 0.1 g of deceleration
- 2 g of deceleration
- 0.8 g of deceleration
- 0.3 g of deceleration
Ver respuesta
Respuesta: C. 0.8 g of deceleration
Securement systems must withstand 0.8 g forward, 0.5 g rearward and 0.5 g sideways.
Pregunta 16 de 30
In Ontario, large trucks covered by the speed limiter rule must have their speed limiter set to no more than:
- 90 km/h
- 100 km/h
- 105 km/h
- 110 km/h
Ver respuesta
Respuesta: C. 105 km/h
Ontario's speed limiter regulation requires covered trucks to be limited to 105 km/h.
Pregunta 17 de 30
When driving a commercial motor vehicle faster than 60 km/h, how far behind another vehicle must you stay, except when passing?
- At least 15 m
- At least 30 m
- At least 120 m
- At least 60 m
Ver respuesta
Respuesta: D. At least 60 m
Ontario law requires commercial motor vehicles over 60 km/h to keep at least 60 m behind other vehicles, except when overtaking.
Pregunta 18 de 30
A train is coming as you approach a railway crossing. Where must you stop?
- At least 50 m from the nearest rail
- At least 5 m from the nearest rail
- Right on the tracks
- At least 1 m from the nearest rail
Ver respuesta
Respuesta: B. At least 5 m from the nearest rail
When a train is approaching, stop at least 5 m from the nearest rail.
Pregunta 19 de 30
About how far may a train need to stop under full emergency braking?
- About 500 m
- About 50 m
- Up to 2 km
- About 200 m
Ver respuesta
Respuesta: C. Up to 2 km
A train can take up to 2 km to stop, so never try to beat a train to a crossing.
Pregunta 20 de 30
You come up behind a stopped school bus with its red lights flashing. How far back must you stop?
- At least 20 m
- At least 50 m
- At least 10 m
- At least 5 m
Ver respuesta
Respuesta: A. At least 20 m
Stop at least 20 m behind a school bus with flashing red lights, and wait until it moves or the lights stop.
Pregunta 21 de 30
At a pedestrian crossover, when may you drive on?
- As soon as the pedestrian steps onto the curb
- When you sound your horn
- When the pedestrian has passed your lane
- When the pedestrian has completely crossed the road
Ver respuesta
Respuesta: D. When the pedestrian has completely crossed the road
At pedestrian crossovers, drivers must wait until the pedestrian has completely crossed the road.
Pregunta 22 de 30
When passing a cyclist in Ontario, how much space must you leave where practical?
- At least 50 cm
- At least 3 m
- At least 30 cm
- At least 1 m
Ver respuesta
Respuesta: D. At least 1 m
Drivers must leave at least 1 m when passing a cyclist where practical.
Pregunta 23 de 30
What is off-tracking when a tractor-trailer turns at low speed?
- The trailer brakes locking up when you turn sharply
- The tractor's front wheels sliding off the road on a turn
- The trailer's rear wheels cutting inside the path of the front wheels
- The trailer swinging wide, outside the tractor's path
Ver respuesta
Respuesta: C. The trailer's rear wheels cutting inside the path of the front wheels
In low-speed turns the trailer's rear wheels cut inside the tractor's path, so you must allow extra room.
Pregunta 24 de 30
This diagram shows a right turn with a tractor-trailer. How should you begin the turn?
- Swing out into the left lane first so the trailer has room, then turn right
- Stop before the corner and back the trailer around it
- Turn sharply from the right lane so the trailer wheels go over the curb
- Keep the trailer close to the curb, then go forward into the intersection before turning
Ver respuesta
Respuesta: D. Keep the trailer close to the curb, then go forward into the intersection before turning
Keeping the rear close to the curb blocks others from passing on the right. Moving forward before turning lets the trailer wheels clear the corner.
Pregunta 25 de 30
When should you use the inter-axle differential lock?
- Only when braking hard on a downgrade
- While the drive wheels are spinning fast on ice
- When traction is poor, engaging it before the wheels spin
- All the time on dry highways, to save fuel and tire wear
Ver respuesta
Respuesta: C. When traction is poor, engaging it before the wheels spin
Engage the lock when traction is poor, never while wheels are spinning, and turn it off on good surfaces.
Pregunta 26 de 30
You are about to go down a long, steep hill. What is the best way to control your speed?
- Stay in a high gear and ride the brakes all the way
- Choose a low gear before you start down and use the engine brake
- Shift to neutral at the top to save fuel
- Speed up near the top and brake hard at the bottom
Ver respuesta
Respuesta: B. Choose a low gear before you start down and use the engine brake
Select a low gear before the descent and let the engine brake hold your speed so the service brakes do not overheat.
Pregunta 27 de 30
What causes brake fade?
- Driving too slowly on flat roads for a long time
- Brakes overheating, often from long or hard use on downgrades
- Using the engine brake on long downgrades
- Cold weather when the brakes are first used each morning
Ver respuesta
Respuesta: B. Brakes overheating, often from long or hard use on downgrades
Hot brakes lose effectiveness. Long descents, heavy loads and high speed make fade worse.
Pregunta 28 de 30
What should you do before backing a large truck if you can?
- Turn off your four-way flashers so others are not confused
- Rely only on your convex mirrors to see behind
- Back up quickly before other traffic arrives
- Walk around to check the area and use a guide to help you
Ver respuesta
Respuesta: D. Walk around to check the area and use a guide to help you
Check the area on foot first and use a guide when possible. Sound the horn and use your four-way flashers.
Pregunta 29 de 30
This diagram shows a tractor-trailer's no-zones. Which side has the largest blind area?
- The left side, beside the cab
- There are no blind areas with good mirrors
- The right side, beside the trailer
- Directly in front of the cab
Ver respuesta
Respuesta: C. The right side, beside the trailer
The right-side no-zone is the largest and can hide a whole car beside the trailer.
Pregunta 30 de 30
How many demerit points lead to a licence suspension for a fully licensed Ontario driver?
- 20
- 15
- 9
- 6
Ver respuesta
Respuesta: B. 15
Fully licensed drivers who reach 15 demerit points have their licence suspended.

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