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Exam Review

Key Facts: Kunskapsprov D1E 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

D1E Theory Pass Validity

Trafikverket

The Swedish Category D1E theory test (Kunskapsprov D1E) comprises 60 multiple-choice questions in 40 minutes, with 55 scored questions and 5 unscored trial questions. Candidates need 44 out of 55 scored points to pass. The 2026 test fee is 420 SEK daytime or 520 SEK after 18:00 and on weekends. Category D1E entitles drivers to operate a D1 minibus (up to 16 passengers, max 8 metres) coupled with a trailer exceeding 750 kg total weight. Independent Category D1E practice by OpenExamPrep provides practice questions reflecting official Trafikverket and Transportstyrelsen standards.

Sample Kunskapsprov D1E Practice Questions

Try these sample questions to review concepts for the Kunskapsprov D1E exam. Each question includes a detailed explanation. Start the interactive quiz above for the full 100+ question experience with AI tutoring.

1When hitching a heavy luggage trailer to a category D1 minibus, how do you verify that the 50 mm ball coupling (kulkoppling) is correctly locked onto the tow ball?
A.Check the indicator shows green and lift the drawbar to test the lock
B.Rely solely on hearing a metallic clicking sound when lowering the jockey wheel
C.Ensure the safety breakaway cable is wrapped tightly around the tow ball neck
D.Drive forward 10 metres at low speed to see if the coupling unhitches
Explanation: Correct hitching requires verifying that the coupling handle is fully closed and the built-in locking/wear indicator displays the green safe marker. In addition, the driver should perform a physical lift test using the jockey wheel or by hand to ensure the ball is firmly locked inside the socket.
2Where should the safety breakaway cable (säkerhetsvajer / katastrofvajer) of an overrun-braked trailer be attached to the minibus?
A.Loosely looped over the neck of a detachable tow ball
B.To a dedicated fixing eye or attachment point on the towbar structure
C.Fastened to the trailer's jockey wheel crank handle
D.Hooked directly to the minibus rear door latch
Explanation: The safety breakaway cable must be attached to a designated eyelet or reinforced bracket on the vehicle's towbar structure. If looped loosely over a detachable tow ball, the cable would fail to activate the trailer's emergency brake if the tow ball itself detaches from the vehicle.
3How does an overrun brake (påskjutsbroms) on a heavy trailer operate when the minibus brakes?
A.Exhaust backpressure from the minibus engine is routed through a pneumatic hose to the trailer axle
B.An electrical signal from the brake pedal activates hydraulic solenoids inside the trailer brake drums
C.The trailer's inertia pushes the drawbar in, which pulls the brake cables
D.The trailer wheels brake automatically whenever the accelerator pedal on the minibus is released
Explanation: An overrun brake is an inertia braking system. When the towing minibus decelerates, the momentum of the trailer pushes against the tow hitch, compressing the sliding drawbar and its hydraulic damper, which pulls brake rods and cables to apply the trailer's foundation brakes.
4Why is it critical to inspect the rubber bellow (damask / bälg) on the trailer's overrun brake during a pre-trip safety inspection?
A.A torn bellow causes an immediate short circuit in the trailer 13-pin electrical system
B.The bellow contains pressurized brake fluid that leaks out if the rubber is damaged
C.The bellow is an airtight chamber that creates vacuum for the trailer power steering
D.A damaged bellow lets water and dirt in, so the drawbar can corrode and seize
Explanation: The rubber bellow shields the sliding drawbar and damper shaft from road grit, salt, and water. A damaged bellow allows contaminants to wash away grease, causing the sliding mechanism to rust or jam, which results in violent hitch jolts or brake lock-up.
5When conducting a functional check of the trailer's overrun brake, what does excessive drawbar travel (reservväg) indicate?
A.Worn brake shoes or badly adjusted cables, needing service
B.The trailer is carrying optimal positive ball pressure
C.The towing vehicle's ABS sensors are functioning correctly
D.The trailer drawbar damper has been permanently locked for high-speed motorway driving
Explanation: Excessive reserve travel (dödgång/reservväg) means the drawbar must travel almost all the way to its mechanical stop before the brake shoes engage the drums. This indicates worn brake friction linings, stretched cables, or incorrect brake linkage adjustment, significantly delaying trailer braking.
6What is the official definition of ball pressure (kultryck) in Swedish vehicle regulations?
A.The horizontal pulling resistance of the trailer when rolling at constant speed
B.The downward force of the trailer coupling on the tow ball
C.The total combined gross weight of the trailer and its cargo resting on the road axles
D.The maximum inflation pressure permitted in the trailer tyres
Explanation: Kultryck is the vertical static load exerted downward by the trailer coupling head onto the tow ball of the towing vehicle. Maintaining proper ball pressure is critical for vehicle stability, steering authority, and trailer tracking.
7What is the primary danger if a luggage trailer behind a minibus is loaded with negative ball pressure (bakåttungt släp)?
A.The trailer overrun brake engages continuously on level motorways
B.The front steering axle of the minibus becomes overloaded, causing stiff steering
C.The coupling exerts an upward lifting force on the minibus rear axle, severely degrading rear grip and triggering trailer sway (slingring)
D.The minibus headlights tilt downward, reducing low-beam illumination distance
Explanation: A rear-heavy trailer lifts the rear axle of the towing minibus, reducing tyre contact force on the rear drive and stabilizing wheels. This drastic loss of rear lateral stability allows aerodynamic disturbances or gentle turns to induce violent trailer snaking (slingring) and loss of control.
8What adverse vehicle dynamics occur if luggage in a trailer is loaded too far forward, creating excessive ball pressure (för högt kultryck)?
A.The trailer rear bumper drags continuously on the road pavement
B.The minibus rear tyres lose all grip and begin to spin freely on dry asphalt
C.The trailer overrun brake cannot activate during heavy emergency braking
D.The rear is overloaded, the steering axle lightened and the lights aim up
Explanation: Excessive downward ball pressure acts as a lever over the minibus rear axle, lifting weight off the front steering axle. This diminishes front tyre adhesion, makes steering sluggish and unresponsive, and angles the headlight beams upward into the eyes of oncoming drivers.
9Where can a driver find the maximum permitted ball pressure (kultryck) for a specific minibus and trailer combination?
A.In the vehicle handbook and on the towbar and trailer plates
B.On the sidewall of the trailer tyres next to the load index rating
C.In the Swedish municipal parking regulations for the local county
D.On the emergency exit glass markings inside the minibus passenger cabin
Explanation: The maximum permitted ball pressure is given by the vehicle manufacturer (handbook and towbar data) and on the plates or documentation of the towbar and the trailer's coupling. The lowest of the rated values must not be exceeded.
10If a heavy commercial trailer behind a large category D1 bus is equipped with a dual-line compressed-air braking system, what is the function of the red coupling line?
A.It is the service line (manöverledning) that sends modulated air pressure when the driver presses the foot brake pedal
B.It is the supply line (matarledning), which charges the trailer and releases its spring brakes
C.It is an auxiliary drainage hose that exhausts water condensation from the air tanks
D.It supplies 24-volt electrical current to the trailer ABS control module
Explanation: In dual-line air brake systems, the red line is the continuous supply line (matarledning). It charges the trailer air reservoirs and keeps the trailer spring parking brakes released; if the red line tears or uncouples, the trailer executes an emergency stop immediately.

About the Kunskapsprov D1E Exam

Kunskapsprov D1E is the Swedish driving licence theory examination for category D1E, which entitles holders to drive a category D1 minibus (designed for up to 16 passengers plus driver, max 8 metres length) coupled to a heavy trailer exceeding 750 kg total weight. Trafikverket administers the digital test at official Förarprov test centres. Key examination domains include vehicle knowledge (coupling, ball hitch, breakaway safety cable, overrun brakes, air lines, kultryck ball pressure, luggage securing), environmental driving (aerodynamics of box luggage trailers, tyre pressure, fuel economy), traffic safety (combination dynamics, stopping distances, trailer sway prevention, off-tracking (genande), rear overhang tail swing, reversing, winter roads), traffic rules (D1E entitlement boundaries, 80 km/h maximum combination speed, 60 km/h with a trailer built for passengers, bus stop priority, bus lane rules), and personal conditions (pre-trip checks, passenger luggage supervision, fatigue management, medical standards for the higher categories). The official test is taken in Swedish. Independent Category D1E practice by OpenExamPrep is an English-language multiple-choice study adaptation, 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 D1E theory test (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, ball hitch lock indicators, safety breakaway cable (säkerhetsvajer), overrun brake (påskjutsbroms) function and bellow inspection, compressed air brake lines, ball pressure (kultryck) and axle load effects, luggage securing in box trailers, and systematic safety checks

Trafikverket content area

Environment

Aerodynamic impact of tall box luggage trailers, fuel economy management, correct tyre pressure under heavy luggage loads, idling restrictions, and smooth driving techniques

Trafikverket content area

Traffic Safety

Driving dynamics with 16 passengers and a heavy trailer, extended stopping distances, trailer sway (slingring) prevention and recovery, off-tracking (genande) in tight turns and roundabouts, rear overhang tail swing, crosswinds on box trailers, precision reversing, and winter friction

Trafikverket content area

Traffic Rules

Category D1E licence limits (D1 minibus up to 16 passengers and 8 metres, trailer over 750 kg), combination speed limit of 80 km/h (60 km/h with a trailer built for passengers), bus stop re-entry priority (bussregeln), and bus lane (kollektivkörfält) regulations

Trafikverket content area

Personal Conditions

Professional driver responsibility, systematic pre-trip inspections, supervising passenger baggage to keep aisles and emergency exits clear, fatigue and driving hour awareness, the 0.2 promille alcohol limit, and medical requirements for the higher categories

Preparing for the Kunskapsprov D1E 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 D1E theory test (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 D1E: Suggested Study Strategy

1Master the examination format: 60 questions, 55 scored, 44 points to pass, 40 minutes test time, and 1-year validity for an approved theory result.
2Understand the D1E vehicle boundaries: Category D1 covers buses with up to 16 passenger seats and max 8 metres length; D1E allows towing trailers over 750 kg total weight.
3Memorize the Swedish speed rules for combinations: when towing a heavy trailer (>750 kg), the maximum legal speed limit is 80 km/h (60 km/h if the trailer is built for passengers), even on motorways where solo buses may drive faster.
4Understand coupling and safety devices thoroughly: ball hitch lock indicators, safety breakaway cable (säkerhetsvajer) attachment to chassis anchor points, overrun brake mechanics, and 7/13-pin electrical connections.
5Master ball pressure (kultryck) dynamics: insufficient or negative ball pressure induces trailer snaking/sway at speed, while excessive ball pressure lightens front steering and misaligns headlights.
6Learn turning geometry: off-tracking (genande) makes the trailer wheels cut inside tight corners, while the bus's rear overhang swings out and initially pushes the trailer hitch outward.
7Remember passenger safety and load securing: secure luggage in the trailer, and keep cabin aisles and emergency exits completely free of baggage.

Frequently Asked Questions

How many questions are on the Swedish Kunskapsprov D1E?

Trafikverket presents 60 computer-based multiple-choice questions. Five questions are unscored development questions, so the official result is calculated out of 55 scored questions.

What is the passing score for Kunskapsprov D1E?

You must score at least 44 points out of 55 scored questions (80%) to pass the D1E knowledge test.

How much time is allowed for Kunskapsprov D1E?

The standard test duration is 40 minutes. Approved applicants with special needs can receive 60 minutes (extended time) or 80 minutes (with an interpreter).

How much does the D1E theory test cost in 2026?

According to Trafikverket's 2026 fee schedule, the theory test costs 420 SEK on standard weekdays during regular hours, and 520 SEK after 18:00 and on weekends.

How long is a passed D1E theory test valid?

A passed Kunskapsprov D1E is valid for 1 year (12 months). You must complete and pass the practical driving test (körprov D1E) within this period.

What can you drive with a Category D1E driving licence in Sweden?

Category D1E allows you to drive a Category D1 minibus (constructed for up to 16 passengers plus driver, maximum 8 metres length) towing a trailer with a total weight exceeding 750 kg. If the trailer is built for carrying passengers, the combination may not exceed 60 km/h.

Are these official Trafikverket examination questions?

No. Independent Category D1E practice by OpenExamPrep provides original study questions based on 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.