DTT Format Explained: 40 Questions, 35 to Pass

The basic numbers

The Category B (car) Driver Theory Test is 40 questions, and you need 35 correct to pass — 87.5%, one of the higher bars among theory tests anywhere. That is deliberate: it is the only formal knowledge check before someone gets a learner permit and starts driving on public roads, so the RSA sets it high.

Compare that with tests elsewhere that pass candidates at 70 or 80 percent, and the gap is obvious: the DTT gives you room for only five wrong answers out of forty, which is a narrower margin than it might sound like on paper.

That margin is exactly why aiming to "just about pass" is the wrong target during revision. Aim to comfortably clear 35, not scrape it, so a couple of unlucky question phrasings on the day still leave you over the line.

Where the questions come from

Every question maps back to the official Rules of the Road booklet published by the RSA — there is no separate hidden syllabus to guess at. Topics span speed limits, priority and right-of-way, road signs, basic vehicle documentation and roadworthiness, and safe driving judgement.

Because the syllabus is a single published booklet rather than a moving target, thorough preparation is genuinely achievable — every question you could be asked traces back to something you can read in advance.

That also means there is no benefit to hunting for shortcuts or rumoured "real" question lists outside the official material. The booklet and well-built practice questions based on it are the whole game.

If a topic feels unfamiliar when you meet it in a practice question, that is a signal to go back to the booklet section it came from, not just to memorise the one answer and move on.

How the test is delivered

The DTT is computer-based and multiple choice, sat at an official test centre — you select an answer on screen rather than filling in a paper form, and the format is identical regardless of which centre you book through theorytest.ie.

Working through practice questions on a screen beforehand, rather than only reading from a printed book, means the format itself will not be a source of surprise on the day — only the specific questions will be new.

No hazard perception section — don't mistake that for easier

Unlike the UK’s DVSA test, the DTT has no separate video hazard-perception component — the entire assessment is the 40-question paper. That makes the 87.5% pass mark carry more weight on its own: there is no second section that could average out a weak multiple-choice score.

If you have researched theory tests in other countries before starting on the DTT, it is worth resetting that expectation specifically — there is nothing to watch, only questions to answer.

What a passing score actually buys you

Passing the DTT earns you the Driver Theory Test certificate you need to apply for a learner permit. It does not replace the practical driving test that comes later — it is strictly the knowledge gate before you are legally allowed to start supervised driving.

Keep your certificate details somewhere safe once you pass. You will need them again during the learner permit application, so treat the pass as the first step in a longer process rather than the finish line itself.

It is worth remembering the DTT this way from the start: not a hurdle to clear and forget, but the point where the rules you will actually drive by first get tested properly.

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