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About this exam

The Norwegian theory test for category C is the knowledge component you must pass before you can take the practical driving test for a heavy goods vehicle. It is aimed at candidates who already hold a category B licence (or are working towards one) and want to drive lorries with a permitted maximum mass above 3,500 kg, either professionally or privately. The exam is computer-based and taken at an approved test centre, with questions delivered in Norwegian and, in some cases, translated versions. Content spans traffic rules and road signs, vehicle knowledge and driving technique for heavy vehicles, hazard perception and interaction with other road users, driving and rest time rules with tachograph and transport documentation, cargo securing and dimension limits, first aid and fire safety, eco-driving, and the driver's legal responsibilities. Because category C driving rewards judgement rather than memorisation, the most effective preparation combines structured reading of the official syllabus with practice questions that explain why an answer is right, followed by supervised driving so that theory and practice reinforce each other. The responsible authority publishes current details on question count, time allowed, fee and pass mark; check its website before booking, as these figures are revised from time to time.

What you'll study

Common questions

About Norway Theory Test - Category C preparation

How is the category C theory test delivered?

It is a computer-based multiple-choice test taken at an approved test centre. You answer on screen and receive your result shortly afterwards. The test is normally offered in Norwegian, and translated versions are available in some languages, so check which languages your chosen centre supports when you book.

How many questions are there and how long do I have?

The number of questions and the time allowed are set by the responsible authority and are adjusted periodically, so no fixed figure is reliable. Look up the current question count, time limit and pass mark on the authority's official website before you book your appointment.

How hard is the exam compared with the category B theory test?

Most candidates find it broader rather than trickier. The traffic rules overlap heavily with category B, but you add vehicle weights and dimensions, air brakes and retarders, cargo securing, tachograph and driving-time rules, and load-related stability. Candidates who already drive a lorry regularly often find the practical sections intuitive.

What happens if I fail, and can I retake it?

You can normally book a new attempt after a waiting period, and you pay the fee again for each attempt. The exact retake rules and any waiting time are set by the authority, so confirm them on its website. Use the result printout to identify which subject areas pulled your score down.

What is the best study order?

Start with traffic rules and road signs, since they underpin every other topic. Then work through vehicle knowledge and driving technique, followed by cargo securing and dimensions. Leave driving and rest time rules and transport documentation until you can study them in uninterrupted blocks, because they are detail-heavy.

Which topics do candidates most often fail on?

Driving and rest time rules, tachograph use and transport documentation cause the most lost marks, because the details are numerous and easy to mix up. Cargo securing and axle-load or dimension limits also trip people up. Questions on hazard perception are usually answered well by candidates with real driving experience.

Do I need to have passed the practical test first?

No. The theory test comes first, and its result is valid for a limited period while you complete training and the practical test. That validity period is set by the authority, so check the current rule before booking, especially if you expect a long gap between the two tests.

Can practice questions alone get me through?

Practice questions help you get used to the format and spot weak areas, but they should not replace the official syllabus. Read the underlying rules, then use questions to test yourself. If you miss a question, read the explanation and go back to the source material rather than memorising the answer.

Is the exam available in languages other than Norwegian?

Translated versions are offered in some languages, but the selection varies by test centre and can change. If you need a translation, confirm availability with the centre before booking. Even with a translation, learning the Norwegian terms for vehicle parts and documents is worthwhile for the practical test.

How should I prepare in the final week?

Take full-length practice sets under timed conditions so you get used to the pace. Review every wrong answer and note the topic it came from. Re-read the sections covering driving and rest time rules and cargo securing, then stop studying the night before so you arrive rested.