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Exam Review

Key Facts: Kunskapsprov C1 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

Theory Pass Validity

Trafikverket

3.5t - 7.5t

Vehicle Weight Scope

Transportstyrelsen

750 kg

Maximum Light Trailer

Transportstyrelsen

The Swedish Category C1 knowledge test consists of 60 questions in 40 minutes (55 scored, 5 unscored trial questions), requiring 44 points to pass. The standard 2026 fee is 420 SEK daytime or 520 SEK evening/weekends. Category C1 covers vehicles between 3.5t and 7.5t totalvikt with a trailer up to 750 kg, requiring a prerequisite category B licence, a driving-licence permit backed by a medical certificate, and 18 years of age.

Sample Kunskapsprov C1 Practice Questions

Try these sample questions to review concepts for the Kunskapsprov C1 exam. Each question includes a detailed explanation. Start the interactive quiz above for the full 100+ question experience with AI tutoring.

1During the pre-trip daily inspection (daglig tillsyn) of a medium lorry fitted with compressed air brakes (tryckluftsbromsar), at what pressure should the low air pressure warning buzzer and warning light activate?
A.When system pressure drops below approximately 5.0 to 5.5 bar
B.When system pressure drops below 2.0 bar
C.When system pressure drops below 8.0 bar
D.When system pressure drops below 11.5 bar
Explanation: In commercial vehicles equipped with compressed air brakes, the acoustic low-pressure warning buzzer and visual indicator must engage when reservoir pressure drops below approximately 5.0 to 5.5 bar (often indicated by a red warning zone on the manometer). Driving with air pressure below this threshold is dangerous because brake force is severely degraded and spring brakes may begin to lock automatically.
2Why must the driver regularly drain condensation from the vehicle's air reservoir tanks (lufttankar) if they are equipped with manual drain valves?
A.To increase the volume of fuel supplied to the engine injection system
B.To stop the water freezing in winter and causing brake failure
C.To reduce the tyre pressure across the drive axle
D.To lubricate the mechanical brake shoe return springs
Explanation: Compressing atmospheric air generates condensation containing water and oil vapour. If moisture accumulates in the wet tank (våttank) or service tanks, it can freeze in valves and air lines during cold Swedish weather, causing total brake malfunction and internal tank corrosion.
3Under Swedish rules, during what period must a heavy lorry (totalvikt over 3,500 kg), such as a C1 medium lorry, be fitted with winter tyres or equivalent equipment?
A.1 December to 31 March
B.1 October to 30 April
C.10 November to 10 April
D.15 January to 15 March
Explanation: Trafikförordningen 4 kap. 18 b § requires heavy lorries, heavy buses and trailers towed by them to have winter tyres or equivalent equipment from 10 November to 10 April, and Transportstyrelsen confirms that this applies whether or not winter road conditions prevail. The 1 December to 31 March rule (in winter road conditions) applies to light vehicles.
4What minimum tread depth must all tyres on a heavy lorry (> 3,500 kg totalvikt) have during the heavy-vehicle winter period of 10 November to 10 April?
A.At least 8.0 mm
B.At least 1.6 mm
C.At least 3.5 mm
D.At least 5.0 mm
Explanation: Transportstyrelsen states that all tyres on heavy lorries and heavy buses must have a tread depth of at least 5 mm from 10 November to 10 April. A trailer coupled to such a vehicle must have at least 1.6 mm.
5During 10 November to 10 April, what minimum tread depth applies to the tyres of a trailer coupled to a heavy lorry such as a C1 medium lorry?
A.At least 1.6 mm
B.At least 3.0 mm
C.At least 5.0 mm
D.At least 8.0 mm
Explanation: Transportstyrelsen's winter-tyre rules require all tyres on heavy lorries and heavy buses to have at least 5 mm of tread from 10 November to 10 April, while a trailer coupled to such a vehicle must have at least 1.6 mm. The trailer still needs winter tyres or equivalent equipment during that period.
6During summer conditions on dry or wet roads, what is the statutory minimum tyre tread depth required on a medium lorry?
A.At least 3.0 mm across the main grooves
B.At least 1.6 mm across the main grooves
C.At least 0.8 mm across the outer edge
D.At least 4.0 mm on the drive axle
Explanation: Outside the winter tyre requirement period and in the absence of winter road conditions, the legal minimum tread depth for commercial goods vehicles is 1.6 mm across the main tread pattern grooves. However, driving near the 1.6 mm limit significantly increases wet braking distances and aquaplaning risks.
7How is the maximum permissible payload (maxlast) of a medium lorry determined from its official vehicle registration certificate (registreringsbevis)?
A.By multiplying axle load (axelbelastning) by the number of axles
B.By adding kerb weight (tjänstevikt) to gross actual weight (bruttovikt)
C.By subtracting kerb weight (tjänstevikt) from totalvikt
D.By subtracting maximum trailer weight from unladen weight
Explanation: Maxlast represents the maximum weight of passengers and cargo that the vehicle is legally certified to carry. According to Swedish vehicle definitions, it is calculated exactly as totalvikt minus tjänstevikt (Maxlast = Totalvikt - Tjänstevikt).
8According to Swedish transport regulations and European standard EN 12195-1, what proportion of the cargo's total weight must the load securing (lastsäkring) be able to restrain in the forward direction (framåt)?
A.At least 20% (0.2 times the cargo weight)
B.At least 50% (0.5 times the cargo weight)
C.At least 100% (1.0 times the cargo weight)
D.At least 80% (0.8 times the cargo weight)
Explanation: Under Swedish Transport Agency regulations, load securing in the forward direction must withstand at least 80% (0.8 g) of the total cargo weight. This high standard accounts for extreme deceleration forces generated during maximum emergency braking.
9What proportion of the cargo's total weight must load securing be able to restrain sideways (i sidled) and rearward (bakåt) on a medium lorry?
A.At least 50% (0.5 times the cargo weight)
B.At least 80% (0.8 times the cargo weight)
C.At least 20% (0.2 times the cargo weight)
D.At least 10% (0.1 times the cargo weight)
Explanation: Transportstyrelsen and EN 12195-1 mandate that cargo securing must withstand at least 50% (0.5 g) of the cargo weight in both lateral directions (to resist centrifugal forces in sharp turns and roundabouts) and rearward (to resist acceleration and uphill rollback forces).
10A medium lorry has a registered totalvikt of 6,500 kg and a tjänstevikt of 4,100 kg. If the driver loads 2,100 kg of freight and a passenger weighing 80 kg, what is the remaining legal cargo capacity before reaching maxlast?
A.400 kg
B.220 kg
C.300 kg
D.0 kg (the vehicle is overloaded)
Explanation: The maximum permissible payload (maxlast) is 6,500 kg - 4,100 kg = 2,400 kg. Because tjänstevikt already includes the driver (standardised at 75 kg) and vehicle fluids, passengers and cargo count against maxlast: 2,100 kg freight + 80 kg passenger = 2,180 kg total payload. Subtracting 2,180 kg from 2,400 kg leaves exactly 220 kg of remaining legal capacity.

About the Kunskapsprov C1 Exam

Kunskapsprov C1 is the Swedish category C1 driving-licence theory test for medium lorries (medeltung lastbil) with an authorised maximum mass between 3,500 kg and 7,500 kg. Administered by Trafikverket Förarprov under licensing rules set by Transportstyrelsen, the computer-based knowledge test assesses driver readiness across vehicle knowledge, traffic safety, traffic rules, environment, and personal conditions. Category C1 authorises driving goods vehicles up to 7,500 kg totalvikt carrying at most 8 passengers, towing a light trailer not exceeding 750 kg. Candidates answer 60 questions within 40 minutes, needing 44 correct out of 55 scored questions to pass. An approved theory test is valid for 1 year, within which the practical driving test must be passed. The official test is taken in Swedish; independent C1 practice by OpenExamPrep is an English-language multiple-choice study adaptation, not an official translation or simulation.

Exam sponsor: Trafikverket Förarprov, 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 per question.

Time Limit

40 minutes (60 min extended, 80 min with interpreter)

Passing Score

44 of 55 scored questions

Exam / Certification Fees

420 SEK daytime; 520 SEK after 18:00 and weekends (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

Medium-lorry braking systems, pneumatic tanks, drain valves, tyre pressure, load securing, daily safety inspection (daglig tillsyn), and tachograph basics

Trafikverket content area

Traffic Safety

Stopping distance, center of gravity, rollover dynamics, cab blind spots, cyclist safety at right turns, bridge clearances, and winter road conditions

Trafikverket content area

Traffic Rules

Category C1 licence scope (3,500 kg to 7,500 kg totalvikt), trailer limits (up to 750 kg), heavy-vehicle speed limits (80/90 km/h), road bearing classes (BK1-BK4), and environmental zones

Trafikverket content area

Environment

Eco-driving techniques for medium lorries, momentum driving, optimal engine torque band, and municipal 1-minute idling rules

Trafikverket content area

Personal Conditions

Five-yearly renewal of the higher categories (medical certificate from age 45), fatigue management, the hand-held phone ban, and the 0.2 promille alcohol limit

Preparing for the Kunskapsprov C1 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 per question.
  • Time limit: 40 minutes (60 min extended, 80 min with interpreter)
  • Exam / certification fees: 420 SEK daytime; 520 SEK after 18:00 and weekends (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 C1: Suggested Study Strategy

1Memorize the key test numbers: 60 questions total, 55 scored, 44 points to pass, 40 minutes test time, and 1-year pass validity.
2Understand heavy vehicle speed limits: 90 km/h on motorways and expressways, 80 km/h on ordinary rural roads, regardless of higher posted signs.
3Master load securing rules: 80 percent of load weight forward and 50 percent to the sides and rear under Transportstyrelsen standards.
4Know the heavy-vehicle winter tyre period: 10 November to 10 April regardless of road conditions, with at least 5 mm tread on all of the lorry's tyres.
5Study pneumatic brake system pre-trip checks: draining moisture from air tanks, the low-pressure warning, and leak tests (täthetsprov).
6Remember that the higher categories are renewed every 5 years, with a medical certificate from age 45.

Frequently Asked Questions

How many questions are on the Swedish Kunskapsprov C1?

Trafikverket's C1 knowledge test consists of 60 questions. Five of these are unscored trial questions, giving a maximum possible score of 55 points.

What is the passing score for Kunskapsprov C1?

You must score at least 44 points out of the 55 scored questions (80%) to pass the category C1 theory test.

How much time do I have for Kunskapsprov C1?

The standard test duration is 40 minutes. Approved accommodations provide 60 minutes for extended time and 80 minutes when using an interpreter.

How much does the C1 theory test cost in 2026?

Trafikverket charges 420 SEK for a daytime theory test on weekdays, and 520 SEK after 18:00 or on weekends. Practical driving tests and photo fees are billed separately.

How long is a passed C1 theory test valid?

An approved theory test for category C1 is valid for 1 year. You must successfully complete the practical driving test within this 1-year period.

What vehicles are covered under category C1?

Category C1 covers lorries and motor vehicles with an authorised maximum mass (totalvikt) over 3,500 kg up to 7,500 kg, designed for up to 8 passengers in addition to the driver. You may also couple a light trailer with a totalvikt of up to 750 kg.

What medical requirements apply to category C1?

A medical certificate (läkarintyg) is needed when applying for the driving-licence permit. The C1 entitlement must then be renewed every 5 years: under age 45 with a health declaration and a basic vision certificate, and from age 45 with a medical certificate.

Are these official Trafikverket questions?

No. This is an independent Category C1 practice resource developed 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.