IA DMV Traffic Laws and Regulations 3 — Questions and Answers
Question 1: In Iowa, what is the minimum following distance a driver should maintain behind another vehicle under normal conditions?
- 1-second rule
- 2-second rule
- 3-second rule (Correct answer)
- 4-second rule
Correct answer: 3-second rule
Iowa recommends at least a 3-second following distance under normal driving conditions to allow adequate stopping time.
Question 2: What does a solid white line between traffic lanes in Iowa indicate?
- Passing is permitted
- Lane changing is discouraged or prohibited (Correct answer)
- The road is one-way
- Bicyclists may use this lane
Correct answer: Lane changing is discouraged or prohibited
A solid white line indicates that lane changes are discouraged or prohibited in that area.
Question 3: In Iowa, a driver must signal before turning or changing lanes how many feet in advance?
- 50 feet
- 100 feet (Correct answer)
- 200 feet
- 300 feet
Correct answer: 100 feet
Iowa law requires drivers to signal at least 100 feet before turning or changing lanes.
Question 4: When driving in a roundabout in Iowa, who has the right-of-way?
- Vehicles entering the roundabout
- Vehicles already circulating inside the roundabout (Correct answer)
- The largest vehicle
- Vehicles coming from the right
Correct answer: Vehicles already circulating inside the roundabout
Vehicles already inside the roundabout have the right-of-way over vehicles entering.
Question 5: Under Iowa law, what is the speed limit in a school zone when children are present unless otherwise posted?
- 15 mph
- 20 mph (Correct answer)
- 25 mph
- 30 mph
Correct answer: 20 mph
The default speed limit in an Iowa school zone when children are present is 20 mph unless another limit is posted.
Question 6: In Iowa, when is it legal to pass another vehicle on the right?
- Whenever traffic is moving slowly
- When the vehicle ahead is turning left and there is a clear lane to the right (Correct answer)
- On any two-lane road
- Only on one-way streets
Correct answer: When the vehicle ahead is turning left and there is a clear lane to the right
You may pass on the right in Iowa when the vehicle ahead is making or about to make a left turn and there is adequate road to do so safely.
Question 7: What must Iowa drivers do when an emergency vehicle approaches from behind with lights and siren activated?
- Maintain speed but move toward the center line
- Pull over to the right edge and stop (Correct answer)
- Speed up to clear the road quickly
- Flash hazard lights and slow down
Correct answer: Pull over to the right edge and stop
Iowa drivers must pull over to the right edge of the road and come to a complete stop when an emergency vehicle approaches with lights and siren.
IA DMV Traffic Laws and Regulations 3
In Iowa, what is the minimum following distance a driver should maintain behind another vehicle under normal conditions?