IA Permit Practice Test 12

All 20 questions in test 12

Every question below comes from the Iowa question bank on this page. Open a question to see the correct answer and the explanation. Nothing here is hidden behind a signup.

1. 1. In Iowa, why should a driver spot slow moving vehicles early in traffic?

   1. Early spotting allows tailgating until the last second
   2. Early spotting gives time to change lanes or slow safely
   3. Slow vehicles must leave the road when cars approach
   4. Sudden slowing behind them is safer than early slowing
   Show answer

   Early spotting gives time to change lanes or slow safely. Always be ready to change your speed to match traffic in Iowa. Some vehicles cannot travel very fast or have trouble keeping up with flow. If you spot these vehicles early, you have time to change lanes or slow down safely. Slowing suddenly can cause a crash. Farm vehicles, horse drawn vehicles, ATVs and UTVs, and roadway maintenance vehicles normally travel at slower speeds and may show a slow moving vehicle sign or flashing lights. Early recognition turns a surprise into a routine pass or follow.

   Study this in the handbook: Turns, Lane Changes, Passing and Tailgaters

2. 2. In Iowa, how does a passively protected railroad crossing differ from one with lights or gates?

   1. It has flashing lights on both sides of the crossing road
   2. It has only a crossbuck with a stop or yield sign
   3. It has a gate that lowers across every lane
   4. It has an officer directing traffic at all hours
   Show answer

   It has only a crossbuck with a stop or yield sign. A passively protected crossing in Iowa has no lights or gates. It is marked only with a crossbuck and a stop or yield sign, so the driver must slow down, look for an oncoming train, and always expect one. Flashing lights and lowering gates describe actively protected crossings instead. Because nothing at a passive crossing will warn you by itself, your own scan carries the full burden. Roll down a window, quiet the cabin, and check both directions before crossing.

   Study this in the handbook: Railroad Crossings and Rural Roads

3. 3. Another driver claims Iowa law gave them the right of way after a crash. What does the law actually do?

   1. It gives the right of way to the faster driver
   2. It gives the right of way to the larger vehicle
   3. It gives the right of way to whoever arrived angry
   4. It says who must yield rather than giving rights
   Show answer

   It says who must yield rather than giving rights. Iowa right of way law tells drivers who must yield; it does not give anyone the right of way. Where vehicles or pedestrians are likely to meet without signs or signals, rules say who waits in each situation. Regardless of who must yield, do everything you can to prevent striking a pedestrian or another vehicle. Be especially alert for bicyclists, who are vulnerable in crashes. Defensive yielding prevents crashes even when another driver fails to yield correctly.

   Study this in the handbook: Traffic Signals and Pedestrian Beacons

4. 4. In Iowa, what does the red color on a traffic sign require?

   1. Slow for a general warning ahead
   2. Stop, yield, or do what the sign shows
   3. Follow the direction to a town or city
   4. Watch for a school or bicycle area
   Show answer

   Stop, yield, or do what the sign shows. Red on an Iowa sign calls for action. The driver must stop, yield, or do what the sign shows, depending on the sign in view. Yellow warns about hazards ahead, green gives direction and distance, and fluorescent yellow-green highlights pedestrian, bicycle, and school areas. Color alone gives a fast first clue before you read any words or symbols. Treating red as a command color helps you prepare to stop or yield without waiting to finish reading the sign.

   Study this in the handbook: Sign Colors and Shapes

5. 5. An Iowa gradual curve warning appears before a bend. What change should you prepare for?

   
   1. A gradual change in the road direction ahead
   2. A sharp hairpin turn requiring a full stop
   3. A T intersection where the road ends ahead
   4. A hill crest hiding the road beyond entirely
   Show answer

   A gradual change in the road direction ahead. A gradual curve warning in Iowa means the road ahead curves gradually, so be prepared for the change in direction. Chevron signs may be added along curves needing extra attention to direction change. Slow before the bend, keep inputs smooth, and on gravel avoid sudden turning or braking that breaks traction. A T intersection warning instead says the road does not go straight ahead. Reading the exact warning prevents both overbraking and entering too fast.

   Study this in the handbook: Warning, Guide and Service Signs

6. 6. An Iowa crossroad warning stands before an intersection. What traffic must you watch for?

   
   1. Traffic merging from a ramp on your right only
   2. Traffic following closely behind your vehicle
   3. Traffic parked along both sides of your road
   4. Cross traffic moving across your path ahead
   Show answer

   Cross traffic moving across your path ahead. A crossroad warning in Iowa means another road ahead crosses the road you are on. Watch carefully for cross traffic in your path. Approach ready to yield or stop, scanning left, right, and left again before proceeding. A T intersection warning differs because your road ends there. Merging traffic warnings concern vehicles blending into your lane instead. Early scanning at crossroads reveals fast side traffic that buildings or cornfields may hide until late.

   Study this in the handbook: Warning, Guide and Service Signs

7. 7. You pass a large Iowa truck and prepare to move back right. When is it safe to return?

   1. As soon as your car passes the truck cab door
   2. When the truck driver flashes headlights at you
   3. When the truck front shows in your rearview mirror
   4. After counting two seconds beside the trailer
   Show answer

   When the truck front shows in your rearview mirror. When passing a large truck in Iowa, look for the front of the truck in your rearview mirror before pulling in front. Trucks and buses take much longer to stop than cars, so avoid pulling out in front of them and creating emergency braking situations. Never stay alongside a large vehicle in its blind spots. If you cannot see the truck driver in the mirror, the driver cannot see you. Mirror confirmation proves the length is truly behind you.

   Study this in the handbook: Trucks, Motorcycles, Bicyclists and Pedestrians

8. 8. A tow truck with flashing lights works on an Iowa shoulder and you cannot change lanes safely. What must you do?

   1. Slow down and be prepared to stop for the scene
   2. Hold speed because only police scenes count here
   3. Pass inches from the truck at the posted limit
   4. Stop in the travel lane beside the tow truck
   Show answer

   Slow down and be prepared to stop for the scene. Iowa Move Over or Slow Down law requires changing lanes for stopped emergency, tow, recovery, maintenance, construction, solid waste, or recycling vehicles with flashing lights, plus any stopped motor vehicle with hazard lights. If a lane change is not possible, prohibited by law, or unsafe, you must slow down and be prepared to stop. No speed is specified, yet it must be reasonable and proper for existing conditions. Move early when you can, and slow genuinely when you cannot.

   Study this in the handbook: Emergency Vehicles and the Move Over Law

9. 9. You are stopped at a stop sign and want to cross a rural four-lane road with a median. How does Iowa say to cross?

   1. Cross both directions in one move to avoid stopping in the median
   2. Look right first, then cross both directions together
   3. Look left and enter the median when safe, stop there, then look right and cross when safe
   4. Turn right, then make a U-turn on the shoulder
   Show answer

   Look left and enter the median when safe, stop there, then look right and cross when safe. Iowa treats a divided four-lane road as two separate crossings. After stopping at the stop sign, look left and move into the median when that direction is clear. Then remain stopped in the median, look right, and cross or turn left once the second direction is safe. The handbook says not to try to cross both directions at once just to avoid stopping in the median, because traffic on these roads moves very fast. Longer vehicles such as semis may not be able to stop in a narrow median.

   Study this in the handbook: Roundabouts and Uncontrolled Intersections

10. 10. For defensive driving in Iowa, what escape habit should a driver keep?

    1. Stay centered behind traffic with no side gap
    2. Follow closely so no car can cut between
    3. Choose the fastest lane and hold it at all costs
    4. Always leave an out if the path ahead blocks
    Show answer

    Always leave an out if the path ahead blocks. In all driving situations in Iowa, position your vehicle where you have the best chance of seeing and being seen. Having an alternate path of travel is essential, so always leave yourself an out, a place to move if your immediate path is suddenly blocked. Tailgating, centering with no side gap, and holding a fast lane through trouble all erase that margin. Think safety first, keep speed matched to conditions, and maintain the three to four second following rule as part of the same cushion.

    Study this in the handbook: Turns, Lane Changes, Passing and Tailgaters

11. 11. In Iowa, how should traffic already on an interstate treat vehicles entering from a ramp?

    1. Hold speed and lane so ramp drivers must stop
    2. Move over, slow down, or speed up to let them enter
    3. Close the gap so ramp drivers wait for a full break
    4. Flash lights until ramp drivers leave the ramp
    Show answer

    Move over, slow down, or speed up to let them enter. Traffic already on an Iowa interstate or highway should move over, slow down, or speed up to allow ramp traffic to enter. Ramp drivers use the entrance area to scan and the acceleration area to match traffic speed, merging when safe. Holding speed to force a ramp stop, closing a gap on purpose, or flashing lights all defeat that shared adjustment. Small early changes by highway drivers prevent hard braking later. Ramp drivers still must wait for a safe gap rather than forcing entry.

12. 12. On Iowa gravel roads, how does loose gravel change the way a driver should handle the car?

    1. Keep highway speed and steer in quick jerks
    2. Accelerate hard to keep the tires on top
    3. Slow down and avoid sudden turning or braking
    4. Brake late and hard before every loose gravel curve
    Show answer

    Slow down and avoid sudden turning or braking. Driving on loose gravel in Iowa is harder than driving on pavement because tires lack the traction needed for stable control. Slow down, avoid sudden turning, accelerate and brake slowly, and increase following distance. Trees, cornfields, buildings, hills, and dust can block views of oncoming or entering vehicles, so identify blind spots early. Quick steering, hard acceleration, and late braking all spend grip that gravel cannot repay. Smooth inputs keep the vehicle tracking where you point it.

    Study this in the handbook: Roundabouts and Uncontrolled Intersections

13. 13. At an Iowa pedestrian hybrid beacon, what does a solid bottom yellow light require?

    1. Proceed because the crossing is now closing
    2. Speed up to clear before the red lights show
    3. Prepare to stop before the red stage begins
    4. Stop only if a pedestrian steps off the curb
    Show answer

    Prepare to stop before the red stage begins. At an Iowa pedestrian hybrid beacon, after the bottom yellow flashes, the bottom yellow light becomes solid and motorists must prepare to stop. The top two red lights then become solid and motorists must stop for pedestrians. After a short time the red lights flash, and motorists must stop if they have not already, then proceed with caution if the crosswalk is clear. Solid yellow is a prepare signal, not permission to hurry through. Lift off the gas and cover the brake.

    Study this in the handbook: Traffic Signals and Pedestrian Beacons

14. 14. You notice your car lingering beside a truck cab in its blind spot on an Iowa highway. What should you do?

    1. Stay beside the cab until your exit arrives
    2. Honk repeatedly until the truck moves aside
    3. Match the truck speed inside the blind spot
    4. Speed up or slow down so the driver can see you
    Show answer

    Speed up or slow down so the driver can see you. Never linger where another driver cannot see your vehicle alongside. Adjust speed forward or back until that driver can pick you out clearly. When passing, get through the blind spot as quickly as you can. Never stay alongside a large vehicle such as a truck or bus, since their blind spots are large and drivers struggle to see you. If you cannot see a truck driver in the mirror, that driver cannot see you either.

    Study this in the handbook: Vehicle Checks, Seat Belts and Child Restraints

15. 15. You decide to change lanes on an Iowa highway. Which order best matches lane change guidance?

    1. Move first, then check whether space was present
    2. Cross two lanes at once toward your target lane
    3. Check traffic, confirm space, then move one lane over
    4. Signal after finishing the move into the new lane
    Show answer

    Check traffic, confirm space, then move one lane over. Iowa lane changes require checking traffic around you and confirming space to safely enter before moving, yielding to vehicles already in that lane. Each lane change should cross a single lane only. Signal intent, maintain speed unless joining a slower lane, check mirrors and blind spots over your shoulder, and watch the far lane for drivers aiming at the same gap. Keep the wheel straight during head checks. Sequence prevents the common sideswipe that guessing creates.

    Study this in the handbook: Turns, Lane Changes, Passing and Tailgaters

16. 16. Heavy rain hides the words on an Iowa sign, yet its shape and color stay clear. What can you still judge?

    1. The type of information that the sign provides
    2. The exact speed limit number posted on the sign
    3. The name of the next town beyond that sign
    4. The number of tracks at the crossing ahead
    Show answer

    The type of information that the sign provides. The shape and color of Iowa traffic signs give clues to the type of information they provide. Red signals stop or yield duties, yellow warns of hazards, green gives direction, blue marks services, and an octagon always means stop. In rain, fog, or at long distance, that classification arrives before any wording. Exact numbers, town names, and track counts still require reading the sign itself. Use shape and color to prepare, then confirm details as you close the distance.

    Study this in the handbook: Sign Colors and Shapes

17. 17. A flooded Iowa creek crossing shows fast water over the road. How much water can sweep a pickup?

    1. As little as 6 inches of moving water can sweep it
    2. Only water deeper than 3 feet can sweep it away
    3. Only water covering the hood can move a pickup
    4. Moving water cannot sweep SUVs or pickups at all
    Show answer

    As little as 6 inches of moving water can sweep it. As little as six inches of water in Iowa may sweep away a vehicle, including SUVs and pickups. Moving water is extremely powerful and very easy to underestimate, and almost half of flash flood deaths happen in vehicles. Never drive through a flooded road or bridge because the surface beneath could be entirely washed out. Turn around and find a different route. If your vehicle stalls in floodwater, abandon it and move to higher ground at once.

    Study this in the handbook: Night Driving, Bad Weather and Floods

18. 18. An Iowa infant is 10 months old and weighs 18 pounds. How must that baby ride in a car?

    1. In a forward facing seat because walking started
    2. In a booster seat with the vehicle seat belt only
    3. Held facing forward in an adult lap for short trips
    4. In a rear facing child restraint system in the car
    Show answer

    In a rear facing child restraint system in the car. An Iowa child under one year old and weighing less than 20 pounds must be secured in a rear facing child restraint system. Both conditions in this case point the same way, so forward facing seats, boosters, and lap holding all fail. Children under six generally need a restraint system rather than a belt alone, and older children up to 18 need a restraint or belt in every seating position. Rear facing spreads crash forces across the infant body most safely.

    Study this in the handbook: Vehicle Checks, Seat Belts and Child Restraints

19. 19. Amber lights flash rapidly on a beacon at an Iowa mid block crosswalk as a person stands within it. What must you do?

    1. Proceed slowly because amber never requires stops
    2. Stop for anyone within that flashing crosswalk
    3. Stop only when the person reaches your lane half
    4. Yield only to vehicles turning at the crosswalk
    Show answer

    Stop for anyone within that flashing crosswalk. Rectangular rapid flashing beacons in Iowa sit at intersections without signals or at mid block crosswalks and flash amber rapidly when activated. Motorists must stop for anyone within the crosswalk and be alert for anyone about to enter when the beacon flashes. That stop duty is stronger than a flashing yellow signal, which means proceed with caution while yielding. Device context decides the duty, so identify a pedestrian beacon before treating amber as roll through guidance.

    Study this in the handbook: Traffic Signals and Pedestrian Beacons

20. 20. Your brake pedal sinks to the floor and the brakes make a lot of noise. What does the manual say to do?

    1. Keep driving and pump the pedal more often
    2. Have a mechanic check the brakes
    3. Wait until the pedal feels firm again on its own
    4. Only check the parking brake and leave the foot brake
    Show answer

    Have a mechanic check the brakes. Iowa explains that cars, trucks, and ATVs or UTVs need two separate braking systems, a foot brake and a parking brake. If your brakes do not seem to be working properly, are making a lot of noise, have an unusual odor, or the brake pedal goes to the floor, have a mechanic check them. Proper maintenance gives you an advantage in an emergency, and brake trouble is not something to wait on.