IA DMV Traffic Laws and Regulations 2 — Questions and Answers
Question 1: In Iowa, what is the maximum speed limit on a rural interstate highway unless otherwise posted?
- 65 mph
- 70 mph (Correct answer)
- 75 mph
- 55 mph
Correct answer: 70 mph
Iowa's maximum speed limit on rural interstate highways is 70 mph unless a lower limit is posted.
Question 2: When must Iowa drivers use headlights?
- Only after midnight
- From sunset to sunrise and when visibility is less than 500 feet (Correct answer)
- Only during rain or snow
- Whenever driving on a highway
Correct answer: From sunset to sunrise and when visibility is less than 500 feet
Iowa law requires headlights from sunset to sunrise and anytime visibility is reduced to less than 500 feet.
Question 3: In Iowa, when approaching a stopped school bus with flashing red lights on a two-lane road, what must you do?
- Slow to 15 mph and proceed with caution
- Stop and remain stopped until the lights stop flashing (Correct answer)
- Change lanes and pass carefully
- Honk to alert children and pass slowly
Correct answer: Stop and remain stopped until the lights stop flashing
Drivers on both sides of a two-lane road must stop completely and remain stopped until the red lights stop flashing.
Question 4: What does a flashing yellow traffic light mean in Iowa?
- Stop and wait for green
- Proceed at normal speed
- Slow down and proceed with caution (Correct answer)
- Yield to all oncoming traffic
Correct answer: Slow down and proceed with caution
A flashing yellow light means slow down and proceed through the intersection with caution.
Question 5: In Iowa, how close to a fire hydrant may you legally park?
- Within 5 feet
- Within 10 feet
- Within 15 feet (Correct answer)
- Within 20 feet
Correct answer: Within 15 feet
Iowa law prohibits parking within 15 feet of a fire hydrant to ensure emergency access.
Question 6: What is the legal blood alcohol concentration (BAC) limit for non-commercial adult drivers in Iowa?
- .04%
- .06%
- .08% (Correct answer)
- .10%
Correct answer: .08%
The legal BAC limit for non-commercial drivers age 21 and over in Iowa is .08%.
Question 7: In Iowa, who has the right-of-way at an uncontrolled intersection when two vehicles arrive at the same time?
- The vehicle on the left
- The vehicle traveling faster
- The vehicle on the right (Correct answer)
- The larger vehicle
Correct answer: The vehicle on the right
When two vehicles arrive simultaneously at an uncontrolled intersection, the driver on the left must yield to the driver on the right.
IA DMV Traffic Laws and Regulations 2
In Iowa, what is the maximum speed limit on a rural interstate highway unless otherwise posted?