Common mistakes in the CSDD theory exam
Most people don't fail the theory exam because they don't know the rules — they fail on carelessness and rushing. Here are the typical mistakes that cost points, and how to avoid them.
Reading the question carelessly
Keywords decide everything: 'prohibited' vs 'allowed', 'all' vs 'except'. One missed word flips the correct answer. Read the whole question to the end, not diagonally.
Confusing priority signs
Priority road vs minor road, 'Give way' vs STOP — easy to mix up under time pressure. First work out who is on the priority road, then pick your answer.
Mistakes at junctions and roundabouts
Unregulated junctions and roundabouts cause most of the disputed cases. Keep a simple right-of-way rule in mind and check it against the signs and markings in every question.
Speed and built-up areas
Limits in a built-up area, outside it, and in a residential zone are the most commonly confused. Check the current figures in the official CSDD materials — the rules are updated from time to time.
Rushing and guessing
It isn't a speed test. Read every answer option to the end — the 'almost right' one often comes first, the exact one lower down.
Before the exam
- Read the question twice, all the way through
- Watch for 'except', 'all', 'prohibited'
- Look at every answer option, not just the first
- Don't rush — you have time to think
- Practise on the official CSN test until it's automatic
Frequent questions
How many mistakes are allowed in the theory exam?
The exact number of questions and permitted mistakes depends on the current CSDD requirements — check the official theory-exam page (link below).
Which languages can I take the theory in?
The theory exam is available in several languages, including Russian and English. See the current list on the CSDD site.
Where can I practise to avoid these mistakes?
On the official CSN test (sample exam questions) and our quick readiness self-check.
CSN practice test
Official CSDD sample exam questions.
Open the CSN test →Official CSDD information
Current rules, conditions and exam booking.
Go to CSDD →Other theory topics
Prepare for theory with an instructor
Roman explains the logic behind the rules and works through your specific weak spots — so theory isn't rote memorisation.