What vehicle must you bring for a Class 1 road test?
Saskatchewan Commercial overview
Saskatchewan Commercial: Tractor-trailer operation and the Class 1 licence
What a Class 1 licence covers, MELT training hours, the Class 1 road and trip inspection test, fifth-wheel checks, combination braking, jackknifing, offset and alley dock backing, and heavy trailers.
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- 14 questions
- Topic drill
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Study reference: SGI Professional Driver's Handbook (2026-27), Ch. 1 Classified licence system, Ch. 2 Good driving habits and Ch. 5 Class 1 trip inspection — Class 1 licence, Combination braking, Backing, Jackknifing
All 14 questions in this test
Every question and its answer choices. The correct answers and explanations appear when you take the test above.
What vehicle must you bring for a Class 1 road test?
- A school bus with air brakes
- A three-axle power unit and a 48 ft or longer trailer
- A two-axle truck towing any trailer heavier than 4,600 kg
- A tandem tractor without a trailer
During offset backing to the driver's side, when do you turn the wheel fully left?
- Before you put the unit in reverse
- When the tractor tires line up with the landing gear
- As soon as the trailer begins to move backward at all
- When the rear of the trailer reaches the edge of the stop box
Reflective tape along each side of a trailer must cover at least how much of its length?
- 100%
- 25%
- 75%
- 50%
How many hours of Mandatory Entry-Level Training does a Class 1 applicant need before the road test?
- At least 40 hours
- At least 80 hours
- At least 200 hours
- At least 121.5 hours
A typical Class 1 combination has at least how many tires and rims to inspect?
- 10
- 22
- 8
- 18
Of the Class 1 MELT hours, how many are spent behind the wheel?
- 47 hours
- 57 hours
- 30 hours
- 17.5 hours
Which manoeuvres are added to the Class 1 road test?
- Parallel parking on a city street and a hill start only
- Offset and alley dock backing, coupling and uncoupling
- A U-turn in town and a reverse slalom
- A skid pad recovery test and a controlled emergency stop
How do you test the trailer's emergency brakes in the Class 1 brake response test?
- Hand valve applied, then reverse slowly
- Trailer brakes off, tractor brakes on, pull hard
- Trailer emergency brakes on, tractor brakes off, pull gently
- Both park brakes off, coast down a slope
How can you apply the trailer brakes without the tractor brakes?
- Press the foot valve lightly
- Turn on the engine retarder
- Use the trailer hand control valve
- Pull the yellow parking brake valve
What is a trailer jackknife?
- The rear of the trailer swings around
- The kingpin breaks loose from the fifth wheel
- The trailer tips onto its side
- The tractor's rear skids sideways
A temporary foreign worker has a Class 1 licence from another country. Can they drive a semi in Saskatchewan?
- Yes, with an air brake endorsement
- Yes, for up to 90 days after entering Canada
- Yes, if an employer's supervisor rides along
- No; they need MELT and a Saskatchewan Class 1
During the Class 1 trip inspection, what must be true of the fifth-wheel locking handle?
- It is in the locked position
- It is removed and stowed in the cab
- It is tied back with wire
- It is pulled out for easy release
How does the Class 1 trip inspection test differ from Classes 2 to 4?
- You inspect a random block of components and describe defects
- You inspect the trailer only, not the tractor
- You may use a checklist from the examiner
- You only answer written questions about inspections
What can over-braking in a curve or on ice cause with a tractor-trailer?
- The fifth wheel to unlock
- The air dryer to freeze up
- The trailer to overheat its tires
- A jackknife or skid
Tractor-trailer operation and the Class 1 licence: 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 ↗
Ch. 1 Licence Class 1 and examinations (pp. 2, 12–15)
- Class 1 is for power units with semi-trailers and trucks towing units heavier than 4,600 kg; it also covers Classes 2–5.
- Requirements: age 18 and not novice, medical, vision, six knowledge papers (Class 1, 2, 3, 4, Basic, Sign), MELT, trip inspection and road test in a Class 1 vehicle.
- Mandatory Entry-Level Training: at least 121.5 hours — 47 classroom or online, 17.5 in the yard, 57 behind the wheel — in 11 modules, each of which must be passed.
- Visitors and temporary foreign workers cannot drive semis on their existing licence; they need MELT and a Saskatchewan Class 1.
- MELT must be completed before booking the Class 1 road test; the training school updates your SGI file.
- Class 1 road test vehicle: a three-axle power unit and at least a 48 ft trailer.
- The Class 1 trip inspection uses a random block of components; you list defects and say what action you would take.
- Heavy trailer learner privileges need only the medical and heavy trailer written tests; full Class 1 learner privileges need all seven papers.
Class 1 trip inspection (pp. 74–79)
- Tractor and trailer are inspected coupled; a typical combination has at least 18 tires and rims.
- Fifth-wheel checks: mounted securely to the frame, jaws closed around the kingpin, locking handle locked, slide locking pins locked.
- Trailer checks include reflective tape covering at least 50% of each side, glad hands connected without leaks, landing gear raised with the handle stowed, all four tandem slide pins locked, rear impact guard intact.
- Brake response tests: trailer emergency brakes on and tractor brakes off, pull gently; tractor park brakes on and trailer brakes off, pull gently; then trailer service brakes with the hand valve; then the foot brake.
Combination handling (pp. 32–33, 37, 46–47)
- Foot valve applies tractor and trailer brakes together at equal pressure; the hand valve applies trailer brakes alone and can add trailer pressure during a foot application.
- Over-braking in curves or on slippery roads can jackknife a combination.
- Engine retarders on slippery roads can lock the drive wheels and jackknife a tractor-trailer.
- Applying gentle power through a curve helps counter centrifugal force.
- With a semi-trailer parked, apply spring brakes on both units; on a hill without a curb leave the tractor wheels straight and block the wheels.
- Offset backing to the driver side and alley dock from the driver side are part of the Class 1 road test.
Jackknifing (p. 149)
- Tractor jackknife: the tractor's rear skids sideways. Trailer jackknife: the rear of the trailer swings around.
- Beyond about 15 degrees a jackknife is almost impossible to recover, and it can get there in about 1.5 seconds.
Study the Tractor-trailer operation and the Class 1 licence rules as flashcards →
Other topics
- Licence classes, endorsements and examsWhat Class 1, 2, 3 and 4 licences allow, novice-driver limits, A, G and S endorsements, learner endorsements, the knowledge papers each class writes, Class 1 MELT and commercial medical standards.
- Driver condition, speed and following distanceDistraction, fatigue, alcohol and drugs, night vision and glare, the six driving conditions, traffic tempo, the time-based following count for long vehicles, tailgaters, intersections, railway crossings and the danger zone.
- Braking, passing, parking and backingSmooth stops, downgrades and retarders, combination braking, ABS warning lights, passing and being passed, curves, gear shifting, mirrors, parking on grades, warning devices for stopped vehicles, and safe backing.
- Tires, fire safety, fuel efficiency and winter drivingTire pressure and heat, tire matching, carbon monoxide, fire prevention and extinguishers, flares, fuel-saving habits and idling, plus the essential winter checks and the six hazards of winter driving.
- Vehicle condition and trip inspectionsThe PMVI program and inspection decals, who needs a daily trip inspection, Schedules 1 to 3, minor and major defects, the trip inspection report, the circle check order, brake response tests, en route and post-trip checks, and lighting.
- Taxis, ambulances, emergency and tow vehiclesWhat Class 4 covers for hire, criminal record checks and the T restriction, emergency vehicle rules and the duties of other drivers, slowing to 60 km/h, tow truck lights and taxi driving practices.
- Vehicle weights and dimensionsLegal length, width and height limits, A, B and C trains, axle definitions, overheight and power lines, red flags, clearance and amber lights, weight systems, spring road bans, permits and weigh scales.
- Truck handling: off-tracking, turns and turn-aboutsTurning radius and off-track, positioning for curves, left and right turns with a long unit, steering a semi-trailer backward, U-turns and the highway three-point and two-point turn-abouts.
- Loads, cargo securement and bills of ladingWeight distribution on trucks and trailers, securing and covering loads, overhang flags and lights, special cargos and livestock, prohibited shipments and what a bill of lading must contain.
- Transporting dangerous goodsReporting duties, TDG training certificates, consignor, carrier and consignee responsibilities, the nine hazard classes, labels, placards and UN numbers, routes and where the shipping document goes.
- Buses and passenger safetyClass 2 buses, loading zones, bus turns and leaving the curb, passenger precautions, railway crossings with passengers, standing passengers, refusing passage and the Class 2 bus trip inspection.
- School buses and the S endorsementWho may drive a school bus, re-testing every five years, safety lights and stop arm distances, what a school bus driver must and must not do, railway crossing steps, loading and unloading students.
- Coupling, uncoupling and trainsCoupling and uncoupling a tractor-trailer with air ride suspension step by step, tug tests, landing gear, hooking up a pup-train and converter dolly, safety chains, draw-bar rules and breakaway brakes.
- Air brakes: who needs the A endorsement and braking principlesWhen the A endorsement is required, heat, friction and traction, how weight and speed change braking power, leverage and air pressure, and the three parts of stopping distance.
- Air brake components and system operationCompressor and governor pressures, reservoirs and draining, foot valve, brake chambers, S-cam brakes and disc brakes, safety valve, check valves, gauges, relay and quick-release valves, low air warning, ratio valve and air dryer.
- Dual-circuit systems and spring brakesPrimary and secondary circuits, what happens when one fails, spring-brake chambers, parking-brake valves and the pressures at which spring brakes drag and apply, compounding, blended air, the modulator valve and caging.
- Tractor and trailer air systemsThe tractor protection system, trailer-supply valve, supply and service lines, gladhands, the hand valve, relay emergency valve, breakaways and line ruptures, bobtail valve and trailer spring brakes.
- Brake adjustment and air brake pre-trip testsWhy poor adjustment causes brake failure, push rod stroke limits, manual and automatic slack adjusters, the hammer test, service tests, steep downgrade checks, and pre-trip air tests for single and combination units.