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Key Facts: Portugal IMT Category D Exam

20

Multiple-Choice Questions

Regulamento da Habilitacao Legal para Conduzir, Article 43

25 minutes

Theory Test Duration

Regulamento da Habilitacao Legal para Conduzir, Article 46

18/20

Passing Score

Regulamento da Habilitacao Legal para Conduzir, Article 47

15 EUR

Theory Test Fee

IMT Veiculos Pesados de Passageiros page

24 years

Minimum Age Without CQM

Regulamento da Habilitacao Legal para Conduzir, Article 20

The Portugal IMT Category D theory test has 20 multiple-choice questions in 25 minutes, and 18 correct answers are needed to pass. The same test is used for Category D1. IMT lists the theory-test fee as 15 EUR. Candidates need a Category B licence, Group 2 medical and psychological fitness, and must be 24, or 21 or 23 with a driver qualification card (CQM). The programme covers heavy-vehicle systems, air brakes and retarders, tachographs, passenger and child transport, and level-crossing emergencies.

Sample Portugal IMT Category D Practice Questions

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

1Under the Regulamento da Habilitação Legal para Conduzir (RHLC), which vehicles does Category D cover?
A.Motor vehicles for up to 16 passengers excluding the driver, with a maximum length of 8 m
B.Any motor vehicle with a maximum authorized mass above 3,500 kg
C.Motor vehicles designed and built to carry more than eight passengers, excluding the driver
D.Only articulated buses and double-deck coaches used on scheduled routes
Explanation: RHLC article 3 defines Category D as motor vehicles designed and constructed to carry more than eight passengers in addition to the driver, with an optional trailer of up to 750 kg maximum authorized mass. A Category D licence also covers D1 vehicles.
2Which description matches Category D1 under the RHLC?
A.Up to 16 passengers excluding the driver and a maximum length of 8 m
B.Up to 22 passengers excluding the driver and a maximum length of 10 m
C.Up to 8 passengers excluding the driver and a maximum mass of 7,500 kg
D.Any bus used only on urban services, regardless of its size
Explanation: RHLC article 3 defines D1 as motor vehicles designed for no more than 16 passengers excluding the driver, with a maximum length of 8 m, plus an optional trailer of up to 750 kg. Category D includes D1, and candidates for D1 and D sit the same 20-question theory test.
3A Category D licence holder wants to tow a luggage trailer behind a coach. What is the heaviest trailer the Category D licence alone allows?
A.A trailer of up to 3,500 kg maximum authorized mass
B.A trailer of up to 750 kg maximum authorized mass
C.A trailer of up to 1,500 kg maximum authorized mass
D.No trailer at all, because any trailer requires Category DE
Explanation: Under RHLC article 3, a Category D vehicle may tow a trailer whose maximum authorized mass does not exceed 750 kg. A heavier trailer makes the combination Category DE, which needs its own practical test.
4Which licence must a candidate already hold before they can be licensed for Category D in Portugal?
A.Category C
B.Category D1, held for at least two years
C.Category C1
D.A valid Category B licence
Explanation: RHLC article 21(1)(a) makes a valid Category B licence a prerequisite for categories C1, C, D1 and D. A candidate does not need C, C1 or D1 before applying for Category D.
5Without a driver qualification card (carta de qualificação de motorista, CQM), what is the minimum age to obtain Category D?
A.24 years
B.21 years
C.18 years
D.23 years
Explanation: RHLC article 20(1)(g) sets the minimum age for categories D and DE at 24. The lower ages of 21 or 23 apply only to candidates who hold a CQM obtained under Decree-Law 126/2009.
6A driver obtained the CAM through accelerated initial qualification (formação inicial acelerada, 140 hours). According to IMT, from what age may they drive Category D buses on any type of service?
A.18 years
B.21 years
C.23 years
D.25 years
Explanation: IMT states that a CAM from the 140-hour accelerated initial qualification allows Category D and DE driving from age 23, or from 21 only on regular passenger services whose route does not exceed 50 km. The 280-hour common initial qualification allows D and DE from age 21.
7For medical and psychological fitness purposes, which driver group do Category D candidates belong to?
A.Group 1
B.Group 2
C.Group 3
D.No group, because fitness is checked only at renewal
Explanation: RHLC article 22 places candidates and drivers of categories C1, C1E, C, CE, D1, D1E, D and DE in Group 2, which has stricter fitness standards than Group 1.
8What fitness evidence does the RHLC require from a Group 2 candidate such as a Category D applicant?
A.A medical assessment only, with psychological assessment optional
B.A psychological assessment only, repeated every year
C.A self-declaration of health signed at the driving school
D.Both a medical assessment and a psychological assessment
Explanation: RHLC article 24(2) states that Group 2 candidates and drivers undergo both medical and psychological assessment, and are only considered fit after passing both. IMT lists the electronic medical certificate and a favourable psychological assessment certificate among the documents needed to enrol for Category D.
9Under the current RHLC, how long is a Category D licence valid?
A.5 years at a time, until the driver turns 67; it cannot be revalidated after that
B.15 years at a time, until the driver turns 60
C.5 years at a time until 70, then every 2 years with no upper age limit
D.10 years at a time, with a psychological test at every renewal
Explanation: RHLC article 16(5) states that D1, D1E, D and DE licences are valid for 5 years until the driver reaches 67 and cannot be revalidated after that date. The gov.pt renewal page gives the same rule.
10Which licence is needed to drive an articulated bus (autocarro articulado) in Portugal?
A.Category DE, because the rear section counts as a heavy trailer
B.Category CE, because articulated vehicles are always combinations
C.Category D, because an articulated bus is a single passenger vehicle
D.Category D1, provided the bus is shorter than 18 m
Explanation: An articulated bus is a single motor vehicle built to carry more than eight passengers, so it falls under Category D. The RHLC heavy-vehicle theory programme lists the articulated bus as a topic for these categories. DE is needed only when a separate trailer above 750 kg is coupled.

About the Portugal IMT Category D Exam

Portugal's Category D driving licence covers buses and coaches designed and built to carry more than eight passengers in addition to the driver. Under the Regulamento da Habilitacao Legal para Conduzir (RHLC, DL 138/2012 as amended), candidates for categories D1 and D sit the same computer-based theory test: 20 multiple-choice questions on the heavy-vehicle and passenger-transport programme in Annex VII, answered in 25 minutes, with at least 18 correct needed to pass. The official test is set in Portuguese, and IMT may authorize a translation on request. A practical test follows. These questions are independent English-language MCQ study practice by OpenExamPrep; they are not an official translation or a simulation of the IMT test.

Exam sponsor: Instituto da Mobilidade e dos Transportes. The requirements and fees below concern the certification or admission exam, separate from our free practice resources.

Questions

20 questions

Time Limit

25 minutes

Passing Score

18 of 20 questions correct

Exam / Certification Fees

15 EUR for the theory test

Exam sponsor website

Reported exam pass rate: Not published by IMT. 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.

Section 1

Category D Scope and Licensing Requirements

D and D1 definitions, 750 kg trailer limit, Category B prerequisite, minimum age 24 (21 or 23 with CQM), Group 2 fitness, validity to age 67, CAM training and the 0.2 g/l alcohol threshold

Section 2

Heavy Vehicle Systems, Maintenance and Braking

Engine and turbo care, speed limiter, warning lights, steering, suspension and kneeling, tyres, periodic inspection, emissions, air brakes, spring brakes, ABS and retarders

Section 3

Tachographs and Driving Time

Regulation 561/2006: 9-hour daily driving, 56 and 90-hour limits, 45-minute breaks, daily and weekly rest, multi-manning, the 12-day derogation, card rules and downloads

Section 4

Passenger Transport and Child Transport

Bus classes I, II and III, doors and boarding, vehicle capacity, standing passengers, seat belts, wheelchair access, luggage, vigilantes and driver certificates under Lei 13/2006

Section 5

Road Rules, Level Crossings and Emergencies

Article 27 speed limits for buses, bus-stop rules (articles 20, 49 and 52), large-vehicle and roundabout rules, swept path, level-crossing emergencies, breakdowns, fire and accidents

Preparing for the Portugal IMT Category D Exam

What You Need to Know

  • Passing score: 18 of 20 questions correct
  • Exam length: 20 questions
  • Time limit: 25 minutes
  • Exam / certification fees: 15 EUR for the theory test Official sources

Using Our Practice Resources

  • Work through all 100 available questions
  • Review every answer and explanation
  • Track weak areas and revisit them
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Portugal IMT Category D: Suggested Study Strategy

1Learn the vehicle definitions: Category D is for more than eight passengers excluding the driver, D1 for up to 16 passengers and 8 m, and both allow a trailer of up to 750 kg.
2Know the bus speed limits in Codigo da Estrada article 27: 50 km/h in localities, 80 km/h on other roads, 90 km/h on vias reservadas (with or without a trailer) and 100 km/h on autoestradas.
3Master air-brake behaviour: low-pressure warnings, spring brakes, building pressure before moving off, and using retarders without locking the driven wheels.
4Memorize the Regulation 561/2006 numbers: 4.5 hours before a 45-minute break, 9 hours of daily driving, 56 and 90-hour limits, and 11-hour daily and 45-hour weekly rests.
5Study the level-crossing emergency steps in the RHLC programme: break through the barriers to clear the track, or evacuate and call the number on the crossing sign or 112.

Frequently Asked Questions

How many questions are on the Portugal IMT Category D theory test?

The Category D theory test has 20 multiple-choice questions on the specific provisions for categories D1 and D, under RHLC article 43(1)(f).

How long is the Portugal Category D theory test?

Candidates have 25 minutes to answer the 20 questions, under RHLC article 46.

What is the passing score for the Category D test in Portugal?

You must answer at least 18 of the 20 questions correctly, so no more than two mistakes are allowed (RHLC article 47).

Is the Category D1 theory test different from Category D?

No. The RHLC uses one 20-question theory test for categories D1 and D. The categories differ in the vehicles they cover and in the practical test vehicle.

What is the minimum age to obtain Category D in Portugal?

The minimum age is 24. It is 21 or 23 for holders of a driver qualification card (CQM), depending on the type of initial qualification; Category D1 has a minimum age of 21.

Are these practice questions the official IMT questions?

No. They are original, independent English-language study questions based on the official programme. The official test is computer-based and set in Portuguese, and IMT may authorize a translation on request.