Iowa DOT Permit Practice Test 43

  • Questions25
  • Correct to pass20
  • Passing score80%
  • Minimum age14 years

Minimum age: 14 years for an instruction permit

25 questions. Pick an answer to see if it is right and why; you need 20 correct answers to pass.

  1. 1. You are parking on a one-way street where parking is allowed on both sides. What must still be true?

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    Answer D: The vehicle must face the direction the traffic flows

    Either curb may be used on a one-way street where signs allow it, but the vehicle must always be headed in the direction traffic moves.

  2. 2. What do two solid yellow lines down the middle of a two-way road mean?

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    Answer D: Passing is prohibited for traffic in both directions

    A double solid yellow line marks a two-direction no-passing zone, so neither direction may cross it to overtake another vehicle.

  3. 3. Why is it dangerous to make a left turn from the second lane from the center?

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    Answer C: Because a driver in the lane beside you is turning into the same space

    Drivers in the proper turn lane are entitled to that space, and turning across them puts two vehicles into one path through the intersection.

  4. 4. You find yourself in a lane that must turn, you wanted to go straight, and you cannot change lanes safely. What should you do?

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    Answer D: Make the required turn and find another route

    Going straight from a mandatory turn lane surprises everyone around you, while a wrong turn costs only a few extra minutes.

  5. 5. A person in a wheelchair is traveling in the roadway because the sidewalk is blocked by construction. What should you do?

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    Answer B: Pass slowly with plenty of room, or wait

    A blocked sidewalk leaves the person no choice but the road, and a chair cannot move aside quickly, so pass wide and slow or wait for room.

  6. 6. Which common non-prescription medicine is most likely to make a driver drowsy?

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    Answer C: A cold or allergy remedy containing an antihistamine

    Antihistamines in cold and allergy remedies are a leading cause of drowsiness behind the wheel, which is why the label carries a warning.

  7. 7. Why do many crashes happen on routes the driver knows very well?

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    Answer D: Familiar roads let attention slip into routine

    When a route is automatic the mind wanders and hazards get missed, which is why a well known road deserves the same attention as a strange one.

  8. 8. About how far behind a tractor-trailer does the driver's rear blind spot reach?

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    Answer C: Around 30 feet

    The area behind a large truck is hidden for roughly 30 feet, so a driver tucked in there cannot be seen at all.

  9. 9. A large electronic advertising sign beside the road catches your eye. What should you do?

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    Answer A: Glance briefly and return your eyes to the road

    Bright changing displays are designed to hold attention, so treat them like any roadside object and give them no more than a brief glance.

  10. 10. Unless posted otherwise, what is the lawful speed in an Iowa business district?

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    Answer A: 20 miles per hour

    Iowa Code section 321.285 sets twenty miles per hour in any business district and twenty-five miles per hour in any residence or school district.

  11. 11. How often should you check your mirrors while driving?

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    Answer C: Every few seconds, so you always know what is around you

    Traffic behind and beside you changes constantly. Frequent, brief mirror checks keep a picture of your surroundings current so nothing surprises you.

  12. 12. Beside an accessible parking space there is an area painted with diagonal stripes. What is it for?

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    Answer C: It is an access aisle for wheelchairs and lifts, and no vehicle may park or stop in it

    The striped access aisle gives the room a ramp or lift needs to deploy, so blocking it makes the adjacent accessible space unusable.

  13. 13. You leave your car so that its rear overhangs a marked crosswalk. What is wrong with that?

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    Answer B: Pedestrians must step around it into the traffic lane

    A crosswalk has to stay completely clear; anything sticking into it pushes people on foot out into the path of moving vehicles.

  14. 14. A stop sign at a busy corner has a stop line and a crosswalk, but buildings block your view of the cross street. What is the correct sequence?

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    Answer C: Stop at the line first, then edge forward and stop again to see

    The first stop is required at the line or before the crosswalk, and a second stop farther forward is what actually lets you yield safely.

  15. 15. Which of these is part of preparing a vehicle for winter driving?

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    Answer A: Fitting good tires and using washer fluid that will not freeze

    Winter readiness means tread, battery, wipers, antifreeze and washer fluid rated for the cold, plus a reasonable amount of fuel in the tank.

  16. 16. Can a driver be charged with impaired driving after taking a legal over the counter medicine?

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    Answer C: Yes, if the medicine impairs the ability to drive safely

    Impaired driving laws cover any substance that affects driving, including cold remedies, allergy pills and sleep aids sold without a prescription.

  17. 17. In most states, when are headlights required apart from times of poor visibility?

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    Answer A: From about half an hour after sunset to half an hour before sunrise

    Most states require lights from about half an hour after sunset until about half an hour before sunrise, and some simply say sunset to sunrise; lights are also required whenever visibility is poor.

  18. 18. You are approaching the entry of a roundabout and a pedestrian is crossing the marked crosswalk on your approach lane. What must you do?

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    Answer D: Stop before the crosswalk and let the pedestrian cross

    Roundabout crosswalks sit a short distance back from the yield line, and drivers must yield there before they ever reach the circulating lanes.

  19. 19. A turn restriction sign at the corner shows a range of times below the symbol. What does that mean?

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    Answer A: The turn is banned only during the hours shown on the sign

    Times posted under a regulatory symbol set the period during which the restriction applies; outside those hours the movement is permitted.

  20. 20. On which approach is this sign normally installed?

    A yellow diamond showing a black T shape
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    Answer C: On the road that ends, far enough ahead for the driver to slow down

    The warning belongs on the approach that terminates, placed early enough that the driver can lose speed and choose a direction before reaching the junction.

  21. 21. A pedestrian signal changes to a flashing upraised hand. What does that indication mean?

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    Answer C: Do not start crossing, but finish a crossing already begun

    The flashing upraised hand is the pedestrian change interval: nobody may start to cross, but a pedestrian already in the crosswalk may continue to the far side or to a median.

  22. 22. You see an open curb space on the opposite side of a two-way street. What should you do?

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    Answer B: Drive on, turn around, and come back on that side

    You must park on the right, facing the direction of travel, so reaching a space on the other side means going around rather than crossing into it.

  23. 23. The red oil pressure warning light comes on while you are driving. What should you do?

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    Answer C: Pull over safely as soon as possible and shut off the engine

    Loss of oil pressure means the engine is no longer being lubricated and can be destroyed within minutes. Stop, shut down and check before restarting.

  24. 24. A power line has fallen across your vehicle after a crash. What should you do?

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    Answer C: Stay inside and wait for utility workers unless fire forces you out

    The vehicle body may be energized, and touching it and the ground at the same time can be fatal. If you must leave because of fire, jump clear with both feet together and shuffle away.

  25. 25. You are stopped at a stop sign where your road ends at a two-way through street and you plan to turn left. What must you yield to?

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    Answer B: Traffic from both directions and any pedestrians crossing

    A left turn from the stem of a T crosses the near lane and joins the far one, so you give way to traffic in both directions and to pedestrians.