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Exam Review

Key Facts: Kunskapsprov CE Exam

60

Total Questions

Trafikverket

55

Scored Questions

Trafikverket

44 of 55

Passing Score

Trafikverket

40 min

Time Limit

Trafikverket

420 SEK

Daytime Theory Test Fee

Trafikverket 2026

1 year

CE Theory Pass Validity

Trafikverket

80 km/h

Max Speed with Heavy Trailer

Trafikförordningen

74 tonnes

Max Combination Weight on BK4

Transportstyrelsen

The official Swedish category CE theory test contains 60 multiple-choice questions to complete in 40 minutes. Five questions are unscored trial items, requiring 44 of 55 scored points to pass. The standard 2026 Trafikverket fee is 420 SEK daytime or 520 SEK after 18:00/weekends. Category CE requires an existing C licence, valid medical clearance, and passing both theory and combination practical tests; commercial freight driving also requires a professional competence certificate (YKB).

Sample Kunskapsprov CE Practice Questions

Try these sample questions to review concepts for the Kunskapsprov CE exam. Each question includes a detailed explanation. Start the interactive quiz above for the full 100+ question experience with AI tutoring.

1When checking a VBG drawbar coupling (dragkoppling) after hitching a trailer, what indicates that the coupling mechanism is fully locked?
A.The visual indicator pin extends out by at least 50 millimetres
B.The indicator pin is retracted flush inside the housing
C.The air line pressure gauge in the cab drops to zero bar
D.The coupling jaw remains open so the drawbar eye can rotate freely
Explanation: On many VBG drawbar couplings, the mechanical safety indicator pin (kontrollpinne) retracts flush into the housing when the locking bolt has dropped completely through the drawbar eye and locked. Drivers must visually and physically verify that this pin is retracted flush before driving.
2On a vehicle combination equipped with standard European dual-line pneumatic connections, what is the role of the red air line?
A.Exhaust venting line designed to discharge moisture and oil vapor from the trailer air dryer
B.Control line (manöverledning) that conveys variable brake pressure commanded by the service brake pedal
C.Auxiliary electrical line supplying power to the trailer tail lifts and marker lamps
D.Supply line (matarledning) that charges the trailer's air reservoirs
Explanation: In standard two-line pneumatic brake systems, the red line is the continuous supply line (matarledning). It charges the trailer air reservoirs and keeps the trailer emergency spring brakes released during travel.
3What is the primary advantage of a Duo-Matic pneumatic coupling compared to traditional separate red and yellow palm couplings?
A.It joins supply and control lines in one connector that cannot be cross-connected
B.It eliminates the requirement for electronic ABS cables between the truck and trailer
C.It increases service brake air pressure automatically from 8 bar up to 25 bar
D.It permanently locks the trailer brakes so parking chocks are never needed
Explanation: The Duo-Matic system combines the supply (red) and control (yellow) pneumatic circuits into a single quick-release coupling. This ensures rapid connection and eliminates the risk of reversing or misconnecting separate air hoses.
4What is the purpose of the locking latch (spärrhandtag / dragkil) on a semitrailer fifth wheel coupling (vändskiva)?
A.To drain accumulated moisture and oil from the tractor fuel tank
B.To adjust the steering angle of the front tractor steer axle automatically
C.To lock the kingpin in the coupling jaws so it cannot come loose
D.To adjust the electrical voltage between 12 volts and 24 volts
Explanation: The locking mechanism on a fifth wheel (vändskiva) slides a safety wedge or bar behind the coupling jaw once the kingpin is seated. This mechanically locks the kingpin in place to prevent the semitrailer from disconnecting.
5After reversing the tractor under a semitrailer to lock the fifth wheel (vändskiva), what physical test should the driver perform before raising the landing legs?
A.A full air bleed by disconnecting all pneumatic lines while the engine runs
B.A high-speed brake test at 50 km/h in reverse gear
C.A gentle pull forward in low gear against the trailer brakes (rycktest)
D.A suspension bounce test by jumping onto the trailer drawbar
Explanation: A pull test (rycktest) involves selecting a low forward gear and gently letting out the clutch against the locked semitrailer brakes. This verifies mechanically that the kingpin is locked in the jaw and will not slip out when driving away.
6Why must a driver inspect the gap between the fifth wheel plate (vändskiva) and the trailer rubbing plate (glidplatta) after coupling?
A.The rubbing plate must rest solely on the locking jaw rather than the fifth wheel face
B.There must be at least a 20 mm gap to allow grease to flow freely during turns
C.A visible tilt toward the left side is required to counteract road crowning
D.No visible gap or light between the plates, so they sit flush
Explanation: The trailer skid plate (rubbing plate) must rest completely flush on the fifth wheel top plate without daylight or gap between them. A gap indicates that the kingpin may be high-hitched over the lock mechanism, risking separation.
7What is the critical safety function of the four-circuit protection valve (fyrkretsskyddsventil) in a heavy vehicle air brake system?
A.It switches the engine automatically from diesel fuel to battery power when brakes are applied
B.It isolates a failed circuit so the other circuits keep their pressure
C.It doubles the steering assist power when towing a trailer exceeding 40 tonnes
D.It regulates air conditioning airflow between the driver sleeper cab and cargo compartment
Explanation: The four-circuit protection valve (fyrkretsskyddsventil) divides the compressed air system into separate circuits (front axle, rear axle, trailer/parking, and auxiliaries). If one circuit suffers a major leak, the valve closes off that line to protect pressure in the others.
8How do spring brake cylinders (fjäderbromscylindrar) function to hold a heavy vehicle parked?
A.A strong spring applies the brake; air pressure holds the spring off
B.Air pressure pushes the pads against the disc, and a vacuum pump keeps the brakes engaged when parked
C.An electric solenoid draws continuous battery current to hold the wheel discs clamped
D.Hydraulic oil is pumped under high pressure into the wheel hubs to prevent axle rotation
Explanation: Spring brake cylinders contain a powerful mechanical spring that forces the brake mechanism into the applied position. When driving, air pressure holds this spring back; venting the air (via the parking valve or a system leak) allows the spring to expand and clamp the brakes.
9What is the primary function of the air dryer (lufttork) cartridge in a commercial truck pneumatic system?
A.To cool down hot exhaust gases before they reach the diesel particulate filter
B.To remove moisture and oil from the compressed air before it reaches the valves
C.To warm the incoming cabin air to prevent window fogging during sub-zero Swedish winters
D.To spray lubricating engine oil continuously into the trailer wheel bearings
Explanation: The air dryer (lufttork) contains desiccant beads that absorb moisture from the compressed air leaving the compressor. This prevents water condensation, corrosion of sensitive brake valves, and frozen air lines during freezing weather.
10What functions are carried by the standard 7-pin ISO 7638 electrical cable connected between a tractor and trailer?
A.High-voltage 400 V power to operate the trailer refrigeration unit compressor
B.Reversing lights and rear fog lamps exclusively
C.Power for the trailer ABS/EBS and CAN data for brake control
D.Analog audio signals connecting the driver headset to the rear loading dock intercom
Explanation: The ISO 7638 connector is the mandatory dedicated link for electronic braking systems (ABS/EBS). It delivers electrical power to trailer brake modulators and carries CAN-bus data signals to synchronize braking between tractor and trailer.

About the Kunskapsprov CE Exam

Kunskapsprov CE is the Swedish category CE driving-licence theory test for heavy lorries with heavy trailers. Trafikverket administers the computer-based knowledge test and driving test, while Transportstyrelsen sets the licensing rules under Körkortslagen (1998:488), and the traffic rules follow Trafikförordningen (1998:1276). Category CE entitles drivers who hold a category C licence to tow trailers with no maximum weight ceiling up to authorized vehicle combination limits (including 24 m standard rigs and 25.25 m modular combinations on designated roads up to 74 tonnes on BK4). The test comprises 60 questions completed within 40 minutes, where 55 questions count toward the final score and 5 are unscored trial items. A passing score of 44 or more points is required, and the theory pass remains valid for 1 year. The official test is taken in Swedish. Independent Category CE practice by OpenExamPrep is an English-language multiple-choice study adaptation of the official knowledge areas, not an official translation or simulation.

Exam sponsor: Trafikverket Förarprov, with licensing requirements set by Transportstyrelsen. The requirements and fees below concern the certification or admission exam, separate from our free practice resources.

Assessment

Computer-based theory test with 60 multiple-choice questions; 55 are scored and 5 are unscored trial questions. One answer option is correct for each question.

Time Limit

40 minutes

Passing Score

44 of 55 scored questions

Exam / Certification Fees

420 SEK daytime; 520 SEK after 18:00 and weekends for C1, C1E, C, and CE theory tests (Trafikverket 2026)

Exam sponsor website

Fees, eligibility, and exam policies can change. Confirm them with the exam sponsor before applying or paying.

Our practice resources: topics covered

We aim to reflect publicly available exam outlines and topic information in our study resources. Coverage, format, and difficulty may differ from the actual exam, and we cannot guarantee that every detail is accurate or current. Confirm exam requirements, fees, and policies with the official exam sponsor.

Trafikverket content area

Vehicle Knowledge and Manoeuvring

Coupling mechanisms (drawbar couplings VBG/Ringfeder, fifth wheel, kingpin), dual-line pneumatic brakes, EBS, load securing, weight distribution, and combination pre-trip inspection

Trafikverket content area

Traffic Safety

Combination dynamics (off-tracking, rear tail swing, jackknifing risk), 24m and 25.25m rigs, blind spots, winter tyre requirements for truck and trailer, and reversing procedures

Trafikverket content area

Traffic Rules

CE licence entitlements, combination speed limits (max 80 km/h), vehicle length and dimensions, BK1-BK4 axle and gross weight tables, and EU 561/2006 driving and rest-time regulations

Trafikverket content area

Environment

Heavy vehicle eco-driving, aerodynamic drag of trailers, tyre rolling resistance, predictive cruise control, and optimal engine operating rpm band

Trafikverket content area

Personal Conditions

Fatigue management for long-haul drivers, circadian rhythm effects, the 0.2 promille alcohol limit, stress, and pre-trip driver fitness

Preparing for the Kunskapsprov CE Exam

What You Need to Know

  • Passing score: 44 of 55 scored questions
  • Assessment: Computer-based theory test with 60 multiple-choice questions; 55 are scored and 5 are unscored trial questions. One answer option is correct for each question.
  • Time limit: 40 minutes
  • Exam / certification fees: 420 SEK daytime; 520 SEK after 18:00 and weekends for C1, C1E, C, and CE theory tests (Trafikverket 2026) Official sources

Using Our Practice Resources

  • Work through all 100 available questions
  • Review every answer and explanation
  • Track weak areas and revisit them
  • Use our AI tutor for tough concepts

Kunskapsprov CE: Suggested Study Strategy

1Memorize the key test parameters: 60 total questions, 55 scored, 44 points to pass, 40-minute time limit, and 1-year pass certificate validity.
2Master coupling and uncoupling procedures: VBG drawbar coupling, fifth wheel (vändskiva) locking mechanism, kingpin engagement, Duo-Matic pneumatic lines, and ABS/EBS electrical connections.
3Understand the mechanics of dual-circuit air brake systems: compressor, air dryer (lufttork), four-circuit protection valve, spring brakes (fjäderbromscylindrar), and emergency breakaway functions.
4Review road bearing capacity classes (BK1, BK2, BK3, BK4) and the gross combination weight limit of up to 74 tonnes on approved BK4 networks.
5Study winter tyre regulations: from 10 November to 10 April a heavy lorry and its trailers must have winter tyres regardless of road conditions, with at least 5 mm tread on all of the lorry's tyres and at least 1.6 mm on the trailer's.
6Know driving and rest time rules under EU Regulation 561/2006: 4.5 hours maximum continuous driving followed by at least a 45-minute break (or 15 min + 30 min split), and the current day plus 56 previous days of records for roadside checks.

Frequently Asked Questions

How many questions are on the Swedish Kunskapsprov CE?

Trafikverket specifies that the CE-category theory test contains 60 questions. Five of these are unscored trial questions, giving a maximum scored result of 55 points.

What is the passing score for Kunskapsprov CE?

You must score at least 44 points out of the 55 scored questions to pass the Swedish category CE theory test.

How long is the Swedish category CE theory test?

The standard test duration for C1, C1E, C, and CE is 40 minutes. Trafikverket offers approved support accommodations allowing 60 minutes for extended time or 80 minutes with an interpreter.

How much does the CE theory test cost in 2026?

Trafikverket charges 420 SEK for the theory test during regular daytime hours, and 520 SEK after 18:00 or on weekends. Driving tests and photograph fees are booked separately.

How long is a passed CE theory test valid?

According to Trafikverket and Transportstyrelsen regulations, a passed theory test for a C category is valid for 1 year, during which the practical driving test must be passed.

What vehicles can I drive with a Category CE licence?

A Category CE licence entitles you to drive a heavy truck (Category C) coupled to one or more heavy trailers with no upper weight limit, subject to legal gross combination weights and road bearing capacities.

Do I need a YKB (Driver Certificate of Professional Competence) with CE?

In most cases, yes. Under Lag (2007:1157) om yrkesförarkompetens, drivers carrying goods on the road in vehicles that require C1, C1E, C or CE need a valid Yrkeskompetensbevis (YKB) alongside the licence, unless one of the listed exemptions applies.

Are these official Trafikverket exam questions?

No. These are independent study practice questions created by OpenExamPrep from Swedish rules and Trafikverket and Transportstyrelsen guidance. The official test is taken in Swedish; this bank is an English-language multiple-choice study adaptation, not an official translation or simulation.