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Iowa Car / Permit practice

Iowa Car / Permit: Sharing the Road practice test

Driving safely around motorcycles, bicycles, large trucks, pedestrians, and school buses — and knowing who has the right of way.

Content reviewed against official driver handbooks · August 12, 2026

14 questions · pass with 11 correct. You get instant feedback and an explanation after every answer.

Study questions with answers

12 sample Sharing the Road questions with the correct answer, a short explanation, and the official handbook reference. Read through them, then take the quiz above.

Show all 12 questions with answers
  1. 1. How much room must you give a motorcycle when you overtake it?

    Correct answer: The whole lane, never sharing it with the rider

    Give the rider the entire lane rather than crowding into the same lane alongside the machine.

    Source: Iowa Driver's License Manual — Chapter 5, Sharing the Road with Motorcycles

  2. 2. What following distance does the Iowa manual recommend behind a motorcycle?

    Correct answer: Three to four seconds

    Leave three to four seconds so the rider has room to swerve or brake, and drop back farther when the pavement is wet or slick.

    Source: Iowa Driver's License Manual — Chapter 5, Sharing the Road with Motorcycles

  3. 3. What does Iowa require of a driver overtaking a bicyclist?

    Correct answer: Move fully into the other lane and leave the rider the whole lane

    You must change lanes completely and hand the rider the full lane, exactly as you would for any other vehicle.

    Source: Iowa Driver's License Manual — Chapter 5, Sharing the Road with Bicyclists and Pedestrians

  4. 4. How fast do snowplows normally travel on Iowa roads?

    Correct answer: Roughly 25 to 35 mph

    Plows usually work at roughly 25 to 35 mph, and drivers who fail to allow for that slow pace sometimes strike them from behind.

    Source: Iowa Driver's License Manual — Chapter 5, Inclement Weather Driving

  5. 5. The car ahead of you in the next lane stops for no reason you can see near a crosswalk. What should you do?

    Correct answer: Hold back, because a pedestrian you cannot see may be crossing

    Never overtake a vehicle that has stopped or is slowing for a pedestrian; someone you cannot yet see may be crossing in front of it.

    Source: Iowa Driver's License Manual — Chapter 5, Sharing the Road with Bicyclists and Pedestrians

  6. 6. You have just passed a large truck. When is it safe to move back into its lane?

    Correct answer: Once the truck's front end appears in your rearview mirror

    Wait until the truck's front end appears in your rearview mirror, so you do not force a heavy vehicle that needs far more room into a sudden braking situation.

    Source: Iowa Driver's License Manual — Chapter 5, Sharing the Road with Large Trucks

  7. 7. Where are collisions between cars and motorcycles most likely to happen in Iowa?

    Correct answer: At intersections

    The manual identifies intersections as the most common location, so confirm you have seen the motorcycle and judged its speed before turning or entering.

    Source: Iowa Driver's License Manual — Chapter 5, Sharing the Road with Motorcycles

  8. 8. Which side must you never use to pass a working snowplow?

    Correct answer: The shoulder side

    Plows push snow toward the shoulder, so passing on the shoulder side is prohibited; wait for a safe opportunity and allow extra room, since blades can extend beyond the vehicle.

    Source: Iowa Driver's License Manual — Chapter 5, Inclement Weather Driving

  9. 9. In crashes involving large trucks, what share of the deaths are car occupants, according to the Iowa manual?

    Correct answer: 78 percent

    The manual reports that people in the car, usually the driver, account for 78 percent of the fatalities in these collisions.

    Source: Iowa Driver's License Manual — Chapter 5, Sharing the Road with Large Trucks

  10. 10. After passing a bicyclist, when may you move back toward the right?

    Correct answer: Once the rider shows up in your rearview mirror

    Hold your position until the rider becomes visible in your rearview mirror, which confirms you are far enough past to return safely.

    Source: Iowa Driver's License Manual — Chapter 5, Sharing the Road with Bicyclists and Pedestrians

  11. 11. You are alongside a semi and the truck's mirror does not show you the driver's face. What does that tell you?

    Correct answer: You are in a blind spot and the driver very likely cannot see you

    If the mirror does not show you the driver, you are sitting in a no-zone and the driver almost certainly cannot see your vehicle.

    Source: Iowa Driver's License Manual — Chapter 5, Sharing the Road with Large Trucks

  12. 12. A tractor-trailer ahead of you swings out to the left before turning right. What should you do?

    Correct answer: Stay back and never squeeze between the truck and the curb

    Truck drivers often need that extra room to complete a right turn and cannot see vehicles beside or behind them, so never slip into the gap between the truck and the curb.

    Source: Iowa Driver's License Manual — Chapter 5, Sharing the Road with Large Trucks

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Every Iowa question is written from the official Iowa driver handbook and checked against its current edition. DMV Test Free is a free, independent study resource — not affiliated with any DMV or government agency. About DMV Test Free