SA theory test roundabouts practice questions

Question 1

Which signals do you use when turning right at a roundabout?

• Right on approach, then left before you exitCorrect answer
• Right on approach only
• None, roundabouts do not require signals
• Left on approach, then right before you exit

Signal right on approach and while circulating, then signal left as soon as it is practical before your exit.

Rule cited: The Driver's Handbook (South Australia), topic: roundabouts

Question 2

You are going straight ahead at a roundabout. What signal do you give on approach?

• Right
• No approach signal, then left before exiting if practicalCorrect answer
• Left
• Hazard lights

There is no approach signal for straight ahead, but the left signal before the exit is still expected wherever it is practical.

Rule cited: The Driver's Handbook (South Australia), topic: roundabouts

Question 3

At a two lane roundabout with no arrows marked, which lane do you use to turn left?

• Either lane
• The lane with the shortest queue
• The left laneCorrect answer
• The right lane

Turn left from the left lane and right from the right lane unless painted arrows or signs say otherwise.

Rule cited: The Driver's Handbook (South Australia), topic: roundabouts

Question 4

You want to travel more than halfway around a roundabout to come back the way you came. Which signals apply?

• Signal left on approach and keep left throughout
• Signal hazard lights all the way around
• No signals are needed for this manoeuvre
• Signal right on approach, stay in the right lane, then signal left before your exitCorrect answer

Going more than halfway around is treated as a right turn, so it uses the right turn approach and lane.

Rule cited: The Driver's Handbook (South Australia), topic: roundabouts

Question 5

A long articulated truck ahead of you in the roundabout is using both lanes as it turns. What should you do?

• Hold back and give it the space it needsCorrect answer
• Sound your horn to make it stay in one lane
• Move alongside it in the free part of the second lane
• Overtake it on the inside before your exit

Long vehicles cannot stay inside one lane through a tight roundabout, and they may display a DO NOT OVERTAKE TURNING VEHICLE sign.

Rule cited: The Driver's Handbook (South Australia), topic: sharing the road with long vehicles

Question 6

At a two lane roundabout with no arrows marked, which lane may you use to go straight ahead?

• Either laneCorrect answer
• The right lane only
• The left lane only
• Whichever lane the vehicle in front of you chose

Either lane may be used for straight ahead when there are no arrows. Stay in your lane the whole way through and signal left before your exit.

Rule cited: The Driver's Handbook (South Australia), topic: roundabouts

Question 7

Traffic inside the roundabout is banked up and there is no room on the far side of your exit. What should you do?

• Enter and wait beside the central island
• Enter, then reverse if you cannot get out
• Enter slowly and join the back of the queue
• Wait at the holding line until there is room for you to keep movingCorrect answer

Stopping inside a roundabout blocks every other entry. Hold back until you can drive through without stopping.

Rule cited: The Driver's Handbook (South Australia), topic: roundabouts

Question 8

You realise while you are in the roundabout that you have gone past your exit. What is the safest thing to do?

• Brake and reverse to the exit
• Continue around the roundabout and take the exit on the next passCorrect answer
• Cut across from the inside lane to reach the exit
• Stop and wait for a gap so you can reverse

Going around again costs a few seconds. Braking or cutting across surprises everyone behind you.

Rule cited: The Driver's Handbook (South Australia), topic: roundabouts

Question 9

A cyclist is riding through a roundabout in the lane ahead of you. What should you do?

• Overtake in the same lane while they keep to the left
• Sound your horn so they move over
• Stay behind and leave them the whole lane until you have both left the roundaboutCorrect answer
• Pass them on the inside of the curve

A roundabout is too tight to share a lane. Cyclists are entitled to the full lane through it.

Rule cited: The Driver's Handbook (South Australia), topic: sharing the road with cyclists