DTT Road Signs and Markings

Question 1

What does a circular sign with a red border and white background generally indicate?

Accepted Answer

A prohibition or restriction

Answer

Circular signs with a red border on a white background are prohibitory or restrictive signs — they tell drivers what they must NOT do, such as no entry or speed limits.

Question 2

What shape are warning signs on Irish roads?

Accepted Answer

Triangle

Answer

Warning signs in Ireland are triangular with a red border. They alert drivers to hazards or changed conditions ahead, such as bends, junctions, or pedestrian crossings.

Question 3

A yellow diamond sign on its own (blank) on an Irish road means what?

Accepted Answer

You are on a priority road

Answer

A plain yellow diamond sign indicates that you are travelling on a priority road and have right of way over traffic joining from side roads.

Question 4

What does a broken white line down the centre of a road mean?

Accepted Answer

You may cross it to overtake if safe

Answer

A broken white centre line may be crossed to overtake or turn, provided it is safe to do so and you have a clear view ahead.

Question 5

What does a continuous white line along the centre of the road mean?

Accepted Answer

Do not cross or straddle it

Answer

A continuous (solid) white centre line must not be crossed or straddled. It is used where overtaking is unsafe due to restricted visibility.

Irish DTT Practice Test

Irish DTT Practice Test

DTT Road Signs and Markings