After at least 8 consecutive hours off, you may not drive once how much time has elapsed?
Ontario Class A (AZ): Hours of service and logs
Who must follow Ontario's hours-of-service rules, the four duty statuses, daily limits of 13 hours driving and 14 on duty, 7- and 14-day cycles, resets and daily log contents.
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- Every answer explained
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- 18 questions
- Topic drill
Study reference: MTO Truck Handbook (online edition, 2026), Ch. 1 Getting your licence — Hours of service
All 18 questions in this test
Every question and its answer choices. The correct answers and explanations appear when you take the test above.
After at least 8 consecutive hours off, you may not drive once how much time has elapsed?
- 24 hours
- 14 hours
- 16 hours
- 13 hours
What is the most driving time allowed in a day?
- 16 hours
- 10 hours
- 14 hours
- 13 hours
How many hours off duty must a driver have in a day?
- 10
- 6
- 8
- 12
You follow the 7-day cycle and want to start a fresh one. How long must you be off duty in a row?
- 48 hours
- 36 hours
- 72 hours
- 24 hours
After how many hours on duty in a day may you no longer drive?
- 13
- 16
- 14
- 12
On the 14-day cycle, what is the on-duty limit before driving must stop?
- 140 hours
- 120 hours
- 100 hours
- 70 hours
Which vehicle's driver is exempt from the hours-of-service rules?
- A tow truck
- A loaded dump truck
- A tractor-trailer hauling freight
- A school bus
You are waiting at the dock while your trailer is unloaded. What duty status is this?
- On duty, driving
- On duty, not driving
- Off duty
- Sleeper berth
Which of these may a daily log be?
- Handwritten, computer or recording device
- Only a verbal report given to dispatch
- Only an approved electronic device
- Only handwritten in blue or black ink
Which condition is part of the daily log exemption?
- Driving fewer than 8 hours that day
- Having a co-driver on board all day
- Hauling only empty trailers that day
- Working for one operator that day
Hours-of-service rules apply to commercial vehicles over what weight?
- 4,500 kg
- 11,000 kg
- 14,000 kg
- 2,500 kg
Switching off the 14-day cycle requires what consecutive off-duty period?
- 48 hours
- 96 hours
- 72 hours
- 36 hours
On the 14-day cycle, what must you take before driving once you reach 70 on-duty hours?
- 8 hours in a sleeper berth
- 24 consecutive hours off
- A medical examination
- 36 consecutive hours off
Every driver must have had at least 24 consecutive hours off within the preceding how many days?
- 10
- 30
- 7
- 14
A driver's operator assigned the 7-day cycle. What is the on-duty total that stops driving within any 7 days?
- 120
- 80
- 70
- 60
How many duty status categories do the rules define?
- Three
- Six
- Two
- Four
Which item is NOT required when the daily log is made by a recording device?
- The odometer readings
- The driver's name
- The cycle being followed
- The graph grid
Who chooses whether a driver follows the 7-day or the 14-day cycle?
- The operator
- A police officer
- The driver
- The shipper
Hours of service and logs: key rules to remember
Our summary of what the official handbook says on this topic, in our own words. Read it before or after the practice questions above, then check the original chapter. Read the official chapter ↗
Who must comply
- Hours-of-service rules (O. Reg. 555/06) apply to drivers of commercial motor vehicles over 4,500 kg gross or registered gross weight, and to buses, school buses and school-purposes buses.
- Exempt examples: commercial vehicles (other than buses) of 4,500 kg or less, vehicles leased by an individual for 30 days or less, tow trucks, motor homes, ambulances, fire apparatus, police and emergency-relief vehicles, and personal-use pick-ups with an MGVWR of 6,000 kg or less.
- Two- or three-axle vehicles carrying primary farm, forest, sea or lake products are also exempt.
Duty status
- There are four duty statuses: off duty (not in a sleeper berth), off duty in a sleeper berth, on duty driving, and on duty not driving.
- On-duty time includes inspecting, cleaning or repairing the vehicle, loading and unloading, riding as a co-driver (not in the berth), and waiting at inspections, for loading or after a collision.
Daily limits
- A driver must have 10 hours off duty in a day.
- A driver may not drive more than 13 hours in a day, and may not drive after 14 hours on duty in a day.
- After at least 8 consecutive hours off duty, a driver may not drive more than 13 hours, may not drive after 14 hours on duty, and may not drive once 16 hours have passed.
Cycles
- The operator assigns either a 7-day or a 14-day cycle.
- 7-day cycle: no driving after 70 hours on duty in 7 consecutive days.
- 14-day cycle: no driving after 120 hours on duty in 14 consecutive days, and no driving after 70 hours on duty without having taken 24 consecutive hours off.
- Every driver must have had at least 24 consecutive hours off duty in the preceding 14 days.
- To reset or switch cycle: 36 consecutive hours off on the 7-day cycle, 72 consecutive hours off on the 14-day cycle.
Daily log
- A daily log can be handwritten, computer-generated or made by a recording device.
- It must show the driver and co-drivers, date, start time if not midnight, cycle, odometer at start and end, plates of each vehicle and trailer, operator name, home terminal and principal place of business, start and end of each duty status and where it changed, total time in each status, total distance and the driver's signature.
- The graph grid (Form 1) is not required when a recording device is used.
- No log is needed if the driver stays within 160 km of the starting location, returns there at the end of the day and works for only one operator that day; the operator then keeps a record of the day.
- Drivers carry the log for the current day and the previous 14 days.
Other topics
- Class A licence and requirementsWhat a full Class A, restricted AR and manual-transmission-restricted licence let you drive, the 4,600 kg towing threshold, age, medical, MELT training and documents needed to apply.
- Size, weight, CVOR and documentsLegal width, height and length limits for semi-trailers and combinations, CVOR registration, documents a driver must carry, inspection stations, weigh scales, impoundment and dangerous goods.
- Daily inspection and defectsSchedule 1 circle checks within 24 hours, major versus minor defects, reporting, tire tread and wheel checks, annual inspection decals and the defect limits for tractor-trailer air, coupler and suspension items.
- Coupling and uncouplingStep-by-step uncoupling and coupling of a tractor and semi-trailer: securing both units, landing gear, fifth-wheel height, the tug test, visual checks of jaws and plate, air lines and the road-test scoring.
- Cargo securement and oversize loadsSecuring and re-checking loads (80 km, 3 hours, 240 km), NSC Standard 10, rear overhang markings and the flags and signs required for oversize loads.
- Controls, braking and jackknife controlStarting and moving off, transmissions and clutch brakes, the inter-axle differential lock, balanced braking with a trailer, the trailer hand valve, jackknife responses, downgrades and parking a combination.
- Off-tracking, turns and backingHow a semi-trailer off-tracks on curves and right and left turns, roundabouts, clearances, straight backing, the driver's-side alley dock and offset backing.
- Class A road testThe three parts of the Class A road test, what to bring, how the daily inspection, coupling and backing are scored, and the habits examiners look for on the road.
- Driver conduct and sharing the roadFollowing distance for trucks, speed limiters, passing and bluffing, school buses, railway crossings, cyclists, emergency vehicles, right-of-way and HOV lanes.
- Night, weather and emergenciesHeadlight use, fog and whiteouts, skids and ABS, warning devices for a disabled truck, fire classes and causes, collision reporting, drowsiness and distraction.
- Signs, signals and markingsTruck-specific regulatory and warning signs (lane bans, weight limits, clearance, inspection stations), oversize and slow-moving vehicle signs, traffic lights and pavement markings.
- Keeping your Class A licenceRenewal tests by age, the medical report schedule, zero tolerance for commercial drivers, impaired driving, demerit points, vehicle branding and fuel-efficient driving.