Free Iowa DOT Practice Permit Test - Practice Test 1 2026
This Practice Test 1 is modeled on the Department of Transportation (DOT) written knowledge exam, whose length the agency does not publish; to pass you need a pass mark the DOT does not publish (our practice tests use 80%). These 25 questions rotate through traffic laws, road signs, and right-of-way - the core topics the DOT tests most heavily. Every question includes an explanation, so you learn the rule behind each answer - not just whether you got it right.
What does this warning sign mean?
What's on the Iowa Practice Test 1
The DOT does not publish how many questions are on the real Iowa knowledge test. Practice Test 1 is a 25-question set drawn from 53 questions, scored against a practice target of 80%.
Topics in this test's question pool
- Road signs 20
- Traffic laws 17
- Safe driving 5
- Speed limits 3
- Parking 3
- Right of way 3
- Alcohol & drugs 1
- Emergencies 1
53 questions in the pool, 11 of them written specifically for Iowa. Each attempt shows 25 in a new order.
Sample questions from this test, with answers
Want to test yourself first? Take the test above before reading these. Every answer below is checked against the source shown.
1. In Iowa, you may not park any closer to a fire hydrant than:
- A. 5 feet (correct)
- B. 10 feet
- C. 15 feet
- D. 20 feet
Why: The Iowa manual bans parking closer than five feet from a fire hydrant or inside a marked hydrant red zone. Many other states use 15 feet, so learn the Iowa number.
Source: official Iowa driver handbook, p.21 (PDF p.21), 2.26 Parking Not Allowed
2. Besides from sunset to sunrise, Iowa law requires your headlights whenever visibility is no more than:
- A. 500 feet (correct)
- B. 200 feet
- C. 1,000 feet
- D. 100 feet
Why: Iowa requires both headlights from sunset to sunrise and any time visibility is 500 feet or less, such as in fog, heavy rain, or snow. A simple habit: lights on whenever the wipers are on.
Source: official Iowa driver handbook, p.49 (PDF p.49), 4.13 Headlights
3. What does a sign in the shape of an octagon always mean?
- A. Yield
- B. Stop (correct)
- C. Do not enter
- D. Wrong way
Why: An octagon (8-sided shape) is used exclusively for STOP signs. The unique shape lets drivers identify it even when snow-covered or viewed from behind.
Source: Federal MUTCD 11th ed. (Dec 2023) 2A.05, Table 2A-1 Use of Sign Shapes; 2B.04
4. What does the 'basic speed law' require?
- A. You may always drive at the posted limit, whatever the conditions
- B. Drive no faster than is safe for current conditions (correct)
- C. Keep up with the flow of traffic, even above the limit
- D. Never drive more than 10 mph below the posted limit
Why: Every state has a basic speed rule: never drive faster than is reasonable and safe for traffic, weather, visibility and road conditions. You can be cited for driving too fast for conditions even while under the posted limit.
Source: official Iowa driver handbook
5. A 'STOP' sign at a railroad crossing with no gates means you must:
- A. Stop only if a train is in sight
- B. Stop fully, then cross when it is safe (correct)
- C. Slow down and look, then roll across
- D. Stop only if the lights are flashing
Why: A stop sign at a railroad crossing requires a complete stop. Look and listen carefully in both directions, and cross only when you are sure no train is coming.
Source: Federal MUTCD 11th ed. (Dec 2023) 8B.04 Paragraph 06
6. What does an orange-colored sign indicate?
- A. A school zone ahead
- B. A work zone ahead (correct)
- C. A railroad crossing ahead
- D. A hospital zone ahead
Why: Orange signs indicate construction and maintenance work zones. Reduce speed, watch for workers and equipment, and be prepared for changed traffic patterns. Fines are often doubled.
More Iowa facts, the full requirements table and the printable PDF are on the Iowa permit practice test page.
Iowa DOT Test Info
- Questions on real test
- Not published by the DOT
- Passing score
- Not published
- Correct needed
- a pass mark the DOT does not publish (our practice tests use 80%)
- Minimum age
- 14 years old
- Testing agency
- Department of Transportation
More Iowa Tests
Study Tip
Don't just aim to pass this Iowa Practice Test 1 once - keep taking it until you score 80% or higher two or three times in a row. Read the explanation after every question, even the ones you get right, to lock in the rule before your DOT exam.