Iowa Permit Practice Test 1
This free Iowa practice test has 30 multiple-choice questions covering road signs, right-of-way, speed limits, and safe driving — the same topics the Iowa DOT tests. You need 80% correct to pass the real Iowa DOT Knowledge Test.
Question 1 of 30
1. You are passing a slower vehicle on a two-lane road. May you go over the speed limit to finish the pass quickly?
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Correct answer: D. The speed limit applies at all times, including while passing another vehicle. If you cannot complete a pass legally and safely, do not start it. Passing is a choice; speeding is never the tool that makes it legal.
2. How does alcohol change the skills you rely on to drive?
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Correct answer: B. Alcohol slows your reactions, throws off coordination, and blurs and narrows vision, so every core driving skill suffers at once. Impairment starts before you feel drunk. Think of alcohol as turning down every dial you drive with.
3. In Iowa, an under-21 driver can face a license suspension for alcohol at a much lower level than an adult DUI. That zero-tolerance level is which of these?
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Correct answer: D. Reaching 0.02% can cost a driver under 21 their license in Iowa, even when they show no obvious impairment. The state treats underage drinking and driving as a license issue first, aiming to stop the habit early.
4. A school bus ahead stops with its red lights flashing on a two-lane road with no median. Which vehicles must stop?
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Correct answer: D. On a road without a dividing median, traffic in both directions must stop for a school bus with flashing red lights and remain stopped until the lights turn off. Children may cross from either side, so every lane freezes.
5. You and another driver stop at a four-way stop at exactly the same time, and the other car is on your right. What should you do?
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Correct answer: D. When two drivers stop at the same moment, the driver on the left yields to the driver on the right. This tiebreaker gives everyone the same answer without guessing. Remember the phrase: right goes right away.
6. After two drinks at a barbecue in Iowa, you consider driving home. For a driver 21 or older, that becomes illegal starting at which BAC?
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Correct answer: A. Driving in Iowa becomes a per-se DUI at a BAC of 0.08%. Drinks affect people differently, so you cannot reliably guess your number. When you have been drinking, the smart decision is simply to skip driving.
7. On a two-lane road, the center line nearest your lane is broken yellow, while the line on the far side is solid yellow. When may you cross it to pass?
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Correct answer: C. A broken yellow line on your side means passing is permitted from your direction, but only when oncoming traffic is far enough away to pass safely. Broken means you may cross; solid means stay put.
8. A 17-year-old in Iowa claims, 'I only need to stay under the adult limit.' Under zero tolerance, the BAC that actually applies to under-21 drivers is what?
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Correct answer: C. The adult limit is irrelevant for minors. Iowa's zero-tolerance law applies at 0.02% for drivers under 21, because any alcohol raises a new driver's crash risk. If you are under 21, drinking and driving simply never mix.
9. What is the difference between a suspended license and a revoked license?
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Correct answer: A. A suspension parks your driving privilege for a set time or until you meet conditions, while a revocation cancels it entirely, usually forcing you to reapply later. Think of suspension as paused and revocation as erased.
10. Graduated driver licensing (GDL) in Iowa moves teens through permit, intermediate, and full-license stages. Entry into the first stage, the learner's permit, begins at what age?
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Correct answer: A. GDL entry in Iowa starts with a learner's permit at 14. Each stage lifts restrictions as skill grows, because crash risk is highest in a driver's first solo months. The ladder starts at 14; climb it patiently.
11. Why is it illegal to park on a sidewalk or in a crosswalk?
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Correct answer: B. Sidewalks and crosswalks are reserved walking space; a parked car there pushes pedestrians, strollers, and wheelchairs out into traffic lanes. The law keeps walking paths continuous and safe. If people walk there, your car never belongs there.
12. How does the law treat a driver who leaves the scene of a crash they were involved in?
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Correct answer: B. Fleeing a crash you were part of, often called hit and run, is a serious crime everywhere, with penalties that grow if anyone was hurt. Staying is a legal duty. Whatever the damage, driving away doubles the trouble.
13. At a railroad crossing you see a white X-shaped sign reading RAILROAD CROSSING, with no gates or flashing signals. How should you treat it?
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Correct answer: B. The crossbuck is a regulatory sign that legally works like a yield sign at the tracks. Trains cannot swerve or stop quickly, so you must give way every time. At passive crossings, your eyes and ears are the only warning system.
14. Your right wheels drop off the pavement onto a soft shoulder. What should you do?
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Correct answer: B. If your wheels leave the pavement, do not yank the wheel; ease off the gas, slow down, and steer back gently once traffic allows. A sudden jerk against the pavement lip can flip or launch the car.
15. While planning a road trip across Iowa, you look up the fastest speed any of its highways allow. What is that statewide maximum?
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Correct answer: A. Iowa's top speed limit is 70 mph, found only on its fastest designated highways. Expect lower posted limits on most stretches, and remember signs always control: the maximum applies only where a sign actually posts it.
16. You are bringing a partly finished bottle of wine home from a restaurant in Iowa. Where may it legally ride?
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Correct answer: D. Iowa's open container law bans unsealed alcohol anywhere in the passenger area, for drivers and passengers alike, with fines up to $200 each. The trunk is the one legal spot: open bottle, trunk only.
17. What is the safest way to handle your speed through a sharp curve?
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Correct answer: B. Slow to a safe speed before the curve begins, then hold steady or gently accelerate through it. Braking mid-curve can break tire grip and cause a skid. Do your slowing on the straightaway, your steering in the bend.
18. A person with a white cane is about to cross the street ahead of you. What must you do?
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Correct answer: A. A white cane or guide dog marks a pedestrian who is blind, and that person has the right-of-way every time. Stop if needed and never honk, which can confuse them. White cane means your brakes, not your horn.
19. In Iowa, what is the youngest age at which you can apply for a learner's permit?
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Correct answer: B. Iowa issues learner's permits starting at age 14. The permit opens the first stage of graduated licensing, where you build skills with a supervising adult before earning fuller privileges. Know your state's number; it varies nationwide.
20. Along a curb you see a white sign with a large letter P inside a red circle and slash. What does it tell you?
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Correct answer: C. A P covered by a red circle and slash is the international no-parking symbol, banning parking where the sign applies. It keeps curbs clear for visibility, hydrants, and traffic flow. Any symbol wearing the red slash is something you cannot do.
21. During a practice drive in Iowa, your mom asks: 'No sign here, so how fast can you legally go on this residential street?' What is the correct answer?
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Correct answer: B. With no sign posted, the residential default in Iowa is 25 mph. A good habit for new drivers: entering any neighborhood, assume the default, scan for signs, and let posted limits override it whenever they appear.
22. Traffic around you on a Iowa highway posted at the state maximum starts flowing faster than the signs allow. Your personal legal limit remains which speed?
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Correct answer: C. Other drivers speeding never raises your limit; on Iowa's fastest highways it stays 70 mph. Move right and let them pass instead of matching them. Speed limits bind each driver individually, whatever the surrounding traffic does.
23. You plan to turn off an Iowa road where the posted limit is 55 mph. How far before the turn must your signal begin?
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Correct answer: D. Iowa scales signal distance to speed: at least 100 feet when the limit is 45 mph or less, and 300 feet when it is faster. Quicker traffic needs earlier warning. Hook: over forty-five, signal three hundred.
24. In which situations should you add extra following distance behind the vehicle ahead?
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Correct answer: C. Add following distance whenever stopping gets harder or seeing gets worse: slick roads, tailgaters behind you, big trucks blocking your view, or motorcycles that can stop quickly. More risk always calls for more room ahead of you.
25. On a two-lane Iowa road, the school bus ahead of you stops and extends its stop arm. What must you do?
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Correct answer: A. Iowa's school bus law requires stopping at least 15 feet back and waiting for the retracted stop arm, because children cross unpredictably. Violating it can suspend your license up to 180 days. Hook: fifteen feet or lose your seat.
26. You see a yellow diamond sign showing an arrow that bends left, then right, then left again. What does this sign tell you about the road ahead?
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Correct answer: C. A winding road sign warns of three or more curves in a row, while a single-bend arrow marks just one curve. Knowing the difference helps you hold a safe speed. Think: a wiggly arrow means the wiggles keep coming.
27. A yellow diamond sign ahead shows a plus symbol, like a small cross. What is this sign warning you about?
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Correct answer: A. The crossroad symbol warns that a full intersection is ahead, so vehicles may pull out or turn from the left or right. Slow down and scan both directions. Picture the plus sign as two roads meeting.
28. A car is stopped on the shoulder of an Iowa highway with its hazard flashers going. Under the Move Over or Slow Down law, what must you do?
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Correct answer: B. Iowa's Move Over or Slow Down law covers emergency, tow, maintenance, and waste vehicles, plus any stopped vehicle showing hazard lights. Give roadside people space or reduced speed; violations can suspend your license up to a year.
29. You are heading to a party where you plan to drink. What is the safest plan for getting home?
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Correct answer: B. The safest plan is decided before the first drink: a sober designated driver, rideshare, taxi, or staying over. Once alcohol dulls your judgment, you cannot trust yourself to choose wisely. Plan the ride first, then the party.
30. You are approaching an intersection and the traffic light turns steady red. What must you do?
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Correct answer: C. A steady red light requires a full stop before the stop line or crosswalk, or before entering the intersection if there is no line. Stopping at the line protects people crossing. Remember: red means stop, every time.
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