Skip to main content
Truck & Bus Theory Ireland

Free practice quiz

Free truck and bus theory practice quiz

Ten random questions for the Irish category C truck or category D bus theory test, with the explanation after each answer. No sign-up, nothing to install, and nothing you do here leaves your browser.

60 independently written practice questions · 10 per round · not official test questions

Start a round of 10

Which test are you practising for?

About these questions

These 60 questions are a fixed sample from the 1,734 reviewed questions in Truck & Bus Theory Ireland, spread across the topic areas of each test. Each round draws 10 of them at random and, until you have seen them all, avoids repeating any.

They are independently written practice questions, not questions taken from the real test. Every one was written against a published source — the Rules of the Road, the Traffic Signs Manual, legislation or official guidance — and the source is shown under each explanation.

Nothing you do here is stored or sent anywhere. Reload the page and it starts fresh.

The real test, in numbers

Published on theorytest.ie, the Driver Theory Test booking service, and recorded in the app’s exam configuration (checked August 2026). Confirm current details with the test service before you book.
TestQuestionsNeeded to passTime allowed
Truck (category C)10074 (74%)120 minutes
Bus (category D)10074 (74%)120 minutes

A round of 10 is far shorter than the real thing, so treat the score as a quick check, not a prediction. For the format, marking and booking in full, read The truck theory test or The bus theory test.

Practise the whole bank

The app has the full bank: 100-question category C and D mocks, the truck and bus module tests, the combined CD paper, and Driver CPC case studies.

Coming soonApp Store Coming soonGoogle Play

Independent guide: TritonApps is not affiliated with, endorsed by, or approved by the Road Safety Authority or the Driver Theory Test service. This page summarises published guidance for convenience and is not official advice. Always confirm current requirements and fees with the RSA before you book. The practice questions on this page are independently written and are not official Driver Theory Test questions. TritonApps does not represent the RSA or any government body.