Iowa Driver's License Test Iowa Traffic Laws 1 — Questions and Answers
Question 1: What is the legal speed limit in Iowa school zones when children are present?
- 15 mph
- 20 mph (Correct answer)
- 25 mph
- 30 mph
Correct answer: 20 mph
Iowa school zones have a 20 mph speed limit when children are present to ensure their safety.
Question 2: In Iowa, when must headlights be turned on?
- Only after sunset
- From sunset to sunrise and when visibility is less than 500 feet (Correct answer)
- Only in rain or fog
- Whenever wipers are in use
Correct answer: From sunset to sunrise and when visibility is less than 500 feet
Iowa law requires headlights from sunset to sunrise and whenever visibility is reduced to 500 feet or less.
Question 3: What is the minimum following distance Iowa recommends behind large trucks on highways?
- 2 seconds
- 3 seconds
- 4 seconds (Correct answer)
- 6 seconds
Correct answer: 4 seconds
A following distance of at least 4 seconds is recommended behind large trucks to allow adequate stopping time.
Question 4: Under Iowa law, when is it legal to pass a stopped school bus with flashing red lights?
- When no children are visible
- Never — you must stop in all directions
- Only when traveling in the opposite direction on a divided highway (Correct answer)
- When traveling over 45 mph
Correct answer: Only when traveling in the opposite direction on a divided highway
On divided highways with a physical median, vehicles traveling in the opposite direction are not required to stop for a school bus.
Question 5: How far from a fire hydrant must Iowa drivers park their vehicle?
- 5 feet
- 10 feet
- 15 feet (Correct answer)
- 20 feet
Correct answer: 15 feet
Iowa law prohibits parking within 15 feet of a fire hydrant to ensure emergency access is never blocked.
Question 6: In Iowa, what does 'right-of-way' mean at a four-way stop?
- Largest vehicle goes first
- Fastest-arriving vehicle goes first
- The driver who arrived first, or the one to the right in a tie, goes first (Correct answer)
- Driver on the main road always goes first
Correct answer: The driver who arrived first, or the one to the right in a tie, goes first
At a four-way stop, the first vehicle to arrive goes first; when two arrive simultaneously, the one on the right has right-of-way.
What is the legal speed limit in Iowa school zones when children are present?