Truck and Bus Combined theory test
Both categories in one sitting.
140
questions3 hours
to answer them104 of 140 (74%)
to pass€84
official test feeC, C1, CE, C1E, D, D1, DE, D1E
licence categoriestheorytest.ie
the only official serviceTruck & Bus mock test
A mock is only useful if it matches the real thing. Ours runs to the official category CD rules — 140 questions, 3 hours, pass mark 104 out of 140 (74%) — with no feedback until the end.

What the real exam is like
You sit the category CD test at a test centre on a touchscreen. There are 140 multiple-choice questions and 3 hours to answer them, which works out at roughly 77 seconds each — far more than most people need. You can flag a question and come back to it, and you can change an answer any time before you submit.
You need 104 out of 140 (74%). You get your result before you leave the centre. If you fail you can rebook, but it costs €84 again — which is the whole argument for practising until mocks are comfortable.
How to use mocks properly
- Learn first, mock second. A mock measures; it does not teach. Work through the topic packs until the explanations stop surprising you.
- Sit it in one go, timed. Pausing halfway turns a readiness check into another practice session.
- Read every wrong answer afterwards. The review screen is the part that moves your score; the score itself is just the receipt.
- Pass three in a row before you book. One pass can be a lucky draw of questions. Three is a pattern.
A mock is only worth sitting if it is sat properly.
The app runs the category CD paper to the real rules and then makes the review the point, which is the half a web page cannot do.

Sit it the way you will sit the real one
140 questions and 3 hours, with the clock running and nothing marked until you are finished.
No explanation, no green tick, no hint that you have gone wrong
Flag a question and come back to it, exactly as the test centre lets you
Walk out and it does not count — same as walking out of the real thing

Then go through every one you got wrong
Marked at 104 out of 140 (74%), and the screen afterwards is the part that moves your next score.
Your score, the time you took, and how far off the pass mark you were
Every wrong answer with the right one and the reason for it
Those questions land in your mistakes drill automatically

Three passes in a row, then book
One pass can be a lucky draw of questions. The app watches the run, not the last result.
A bar for every sitting against the pass line, so you see a trend
Every try kept, with which paper it was and when
"Pass your last three mocks" is one of the three readiness signals