PureCar
Sell your car Sell car
Northern Ireland theory revision

Road Signs.

Learn warning signs, signs giving orders, information signs, roadworks signs and road markings used in Northern Ireland.

76 PureCar practice questionsFree 10-question topic test
Start Road Signs testBrowse questions

What you need to know

  • Red circles usually give prohibitions or restrictions
  • Blue circles usually give positive instructions
  • Triangles generally warn of hazards ahead
  • Know road markings as well as upright signs
  • Read temporary roadworks signs early

Common mistakes

  • Recognising the shape but not the exact meaning
  • Confusing no waiting with no stopping
  • Missing supplementary plates beneath a sign
  • Looking only at signs and ignoring lane arrows or road markings

How to revise it

  • Group signs by shape and colour
  • Practise the visual sign library
  • Test yourself without answer prompts
  • Revisit every sign you get wrong

Example PureCar questions

Use these as explanations, then take the randomised topic test.

What do circular road signs with a red border usually indicate?

Answer: A prohibition or restriction

Red-bordered circular signs generally show a prohibition or restriction that drivers must obey.

NI theory practice: What do circular road signs with a red border usually indicate?

Answer: A prohibition or restriction

Red-bordered circular signs generally show a prohibition or restriction that drivers must obey.

Test your knowledge: What do circular road signs with a red border usually indicate?

Answer: A prohibition or restriction

Red-bordered circular signs generally show a prohibition or restriction that drivers must obey.

Which answer is safest and correct? What do circular road signs with a red border usually indicate?

Answer: A prohibition or restriction

Red-bordered circular signs generally show a prohibition or restriction that drivers must obey.

Before your Northern Ireland test, make sure you know this: What do circular road signs with a red border usually indicate?

Answer: A prohibition or restriction

Red-bordered circular signs generally show a prohibition or restriction that drivers must obey.

Keep left signWhat do blue circular road signs usually give?

Answer: A positive instruction

Blue circular signs generally give a positive instruction such as keep left.

Practice material is independently written by PureCar and linked to Northern Ireland official guidance where appropriate. Checked 21 September 2026.