What does this sign mean?
Turn right ahead.
The bend in the arrow means ahead — not at this sign, but at the junction beyond it.
Truck CPC · Category CPCT
Driver CPC Case Studies — Truck theory test
Step 2 of the truck driver qualification.
45
questions
135 min
to answer them
28 of 45
to pass (62%)
Road signs
Learn the system, not just the pictures. Once you know what each shape and colour means you can read a sign you have never seen before — which is exactly what the test is checking. 222 signs can appear on the category CPCT test.
Shape and colour
Amber diamond
Warning — a hazard ahead. Ireland uses a diamond, not the red triangle used across most of Europe and in the UK.
Orange diamond
Warning at roadworks. Deliberately distinct from the permanent amber ones, so a temporary hazard stands out.
Red circle
Prohibition — you must not.
Blue circle
Mandatory — you must.
Octagon
Stop, and nothing else uses this shape.
Inverted triangle
Yield.
Blue rectangle
Information.
Red prohibits, blue compels. Getting that pair straight answers a large share of the sign questions on the test.
Direction signs
The colour tells you what class of road you are being sent onto — and therefore what its default speed limit is.
Blue
Motorway
Green
National roads (N-numbers)
White with black text
Regional and local roads
Brown
Tourist and heritage attractions
10 signs, quick quiz
1 of 10
Each sign as it stands on the road, and four meanings. Pick one — the meaning is what the test asks for, not the picture, and the wrong answers are real signs of the same kind.
What does this sign mean?
Electronic toll.
Tolls here are collected from a tag in the vehicle. Where there is no barrier at all, as on the M50, a journey without a tag must be paid online afterwards or a penalty is added.
What does this sign mean?
Turn headlights on.
Used at tunnels and on stretches with poor visibility. Dipped beam, not sidelights, and not main beam where it would dazzle.
What does this sign mean?
Right lane closed.
Merge in turn when you reach the closure. The same sign with the bar on the left means the left lane is closed.
What does this sign mean?
Staggered crossroads.
It behaves like a crossroads whose arms do not line up. Traffic crossing has to do it in two moves, so a vehicle may be waiting in the middle.
What does this sign mean?
Keep right.
A blue circle compels. The mirror of keep left, used where traffic passes on the other side.
What does this sign mean?
Toll road ahead.
Have the means to pay ready. Some tolls have no barrier at all and must be paid online by the following day, or a penalty follows.
What does this sign mean?
Cyclist hand signal: slowing or stopping.
Riders signal as drivers do. An arm out and down means they are about to lose speed, so back off rather than close up.
What does this sign mean?
Turn back.
Shown where a closure has no way through, usually with a detour signed from the last junction.
What does this sign mean?
Level crossing with gates.
The signs are drawn to the Traffic Signs Manual's designs, by us or from public-domain drawings on Wikimedia Commons; none is official artwork.The meanings are the book's; the wording of a question is ours.
In the app
Every sign in your pocket, and three ways to learn them.
Reading a list of signs is not the same as knowing them. The app makes you produce the meaning, which is what the test asks for.
The signs are drawn in the app, not photographed — the same shapes at any size, in the dark.
The whole library, and every sign turns over
Tap a sign for what it means and where you meet it — the meaning is the thing the test asks for, not the picture.
Set out in the groups the Irish sign guides use, and filtered by kind: warning, roadworks, regulatory, information, motorway
Search by name when you have seen one on the road and want it now
Works with no signal, which is most of the useful moments
The four meanings come from the same group, so the wrong ones are plausible, not silly.
Ten quick questions on what they mean
Recognising a sign and producing its meaning are different skills, and only one of them is tested.
Four meanings, one sign, drawn from the group you are looking at
Never asks you to tell apart two signs that are drawn the same
A score at the end and another ten whenever you want them
'Not yet' brings a sign back sooner; a sign known five times stays away.
Or flip through them like flashcards
The old way, because it works: sign, guess, turn it over, next.
The full list or just the group you picked
Swipe or use the arrows — one hand, one thumb
Good for the five minutes before you go in
One group of signs is free; the whole library comes with the unlock.