Iowa DOT Permit Practice Test 26
- Questions25
- Correct to pass20
- Passing score80%
- Minimum age14 years
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1. Why are eating, drinking and personal grooming risky behind the wheel?
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Answer B: They occupy hands, eyes and attention that driving requires
Each of these tasks takes a hand off the controls and attention off the road, and a spill or a dropped item can pull the driver's eyes away entirely.
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2. You are stopped at the yield line of a roundabout when an emergency vehicle comes up behind you with lights and siren. What should you do?
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Answer A: Stay out of the roundabout and pull over to the right of your lane if there is room
Never enter a roundabout ahead of an emergency vehicle and never stop inside one; wait clear of the entry so the crew can get through.
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3. Why does a dirty windshield matter much more at night than during the day?
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Answer C: Dust and streaks scatter oncoming light and increase glare
Film and streaks on the glass spread every oncoming headlight into a star of glare, so clean the inside as well as the outside before a night trip.
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4. A yellow diamond shows the two edges of the road pinching toward each other. What does it mean?
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Answer B: The pavement gets narrower but the lanes continue
The road narrows sign warns that the traveled way becomes tighter, leaving less room beside passing vehicles even though no lane is dropped.
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5. Under Iowa's electronic device law, where must the vehicle be before the driver may use a handheld device?
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Answer A: At a complete stop off the traveled portion of the roadway
Iowa Code section 321.276 allows use of an electronic device only when the vehicle is at a complete stop off the traveled portion of the roadway, or as far from the center as practicable if it cannot be moved off.
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6. What is the youngest age at which the Iowa DOT may issue an instruction permit?
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Answer A: 14 years
Iowa Code section 321.180B allows the department to issue an instruction permit to an applicant who is between 14 and 18 years of age.
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7. Where among these is parking specifically prohibited?
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Answer A: On a bridge, in a tunnel or on railroad tracks
Bridges and tunnels have no safe refuge and cannot be widened, and a vehicle left on railroad tracks cannot be avoided by an approaching train.
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8. Traffic in your lane is backed up and the paved shoulder looks clear. May you drive along it to get past?
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Answer C: No, the shoulder is not a travel lane
Passing must be done within the roadway; driving on the shoulder to get around traffic is prohibited and surprises anyone entering from the right.
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9. As a center two-way left-turn lane reaches an intersection, the markings change into a single left-turn lane. What does that mean for you?
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Answer D: From that point it serves one direction only, so use it just to turn left
Where the shared lane becomes a marked turn bay it belongs to one direction of travel, and only vehicles making that left turn may occupy it.
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10. What does the Iowa electronic device statute say the word use includes?
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Answer C: Holding, viewing, or manipulating the device
Iowa Code section 321.276 defines use to include holding, viewing, or manipulating an electronic device, which is why simply having it in the hand can be a violation.
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11. For how long must a seventeen-year-old have held an Iowa intermediate license before applying for a full driver's license?
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Answer D: A minimum of twelve months
Iowa Code section 321.180B allows a full driver's license at seventeen only if the applicant has held an intermediate license for a minimum of twelve months immediately preceding the application.
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12. What does a yield sign require of a driver?
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Answer A: Slow down, and stop when necessary, so conflicting traffic can go first
A yield sign obliges the driver to reduce to a speed suited to conditions and to stop when needed so that conflicting traffic or pedestrians are not interfered with.
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13. A yellow diamond on an exit ramp shows a truck tipping over onto two wheels. Which drivers does it concern most?
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Answer D: Those in tall vehicles carrying a high load
The truck rollover sign warns that the curve can overturn a vehicle with a high center of gravity, so such drivers must slow well below the normal ramp speed.
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14. A sign at the approach to a bridge reads WEIGHT LIMIT 10 TONS. What does the figure set?
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Answer B: The heaviest vehicle the bridge may legally carry
A weight limit sign is a regulation based on what the structure can bear, and it applies to the loaded weight of the whole vehicle.
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15. Where is signing of this kind normally placed along a freeway?
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Answer D: Ahead of the interchange and again at the exit, so a driver can reach the correct lane in time
Guide information for an interchange is repeated on the approach and at the ramp, because a driver who learns about the exit only at the last moment has no room left for a safe lane change.
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16. How much supervised driving must an Iowa permit holder document before receiving an intermediate license?
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Answer A: 20 total hours, of which 2 hours are after sunset and before sunrise
Iowa Code section 321.180B requires an affidavit showing twenty hours of street or highway driving, two of which were conducted after sunset and before sunrise.
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17. You are about to pass a long tractor-trailer on a two-lane road. What should you expect?
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Answer B: You will need more clear road, since the vehicle is much longer
A tractor-trailer can be 70 feet long, so passing it takes more distance and more time than passing a car at the same speed difference.
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18. The vehicle ahead of you has pulled out to pass a truck. May you follow it out and pass as well?
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Answer B: No, wait until it is done and judge the road for yourself
You cannot see past the vehicle ahead of you, and if it has to abort the pass there is nowhere for either of you to go.
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19. Rain is falling and the outside temperature reads close to 32 degrees Fahrenheit. Why is that dangerous?
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Answer A: The rain can freeze on contact and glaze the road with ice
Near freezing, rain landing on cold pavement can turn to a glaze of ice almost at once, so a road that looks merely wet may have no grip at all.
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20. Fresh snow covers the road and earlier vehicles have left clear tracks. What line is usually best?
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Answer B: The existing tracks, where more of the tire can reach the surface
Running in the cleared tracks puts more rubber on the road surface than ploughing through loose snow, provided the tracks have not turned to polished ice.
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21. May you park at the curb immediately next to a railroad crossing?
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Answer A: No, you must leave the crossing and its approach clear
Parking beside a crossing hides the tracks and the signals from approaching drivers and leaves no room for a vehicle that has to clear the rails.
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22. You want to stop briefly and the only space is in the travel lane alongside a vehicle already parked at the curb. Is this allowed?
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Answer D: No, double parking blocks a travel lane and is prohibited
Stopping in the roadway beside a parked vehicle removes a lane from traffic and forces other drivers to swerve around you, which is why double parking is prohibited.
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23. When may you stop on the shoulder of a freeway?
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Answer A: Only in an emergency, moving completely off the travel lanes and switching on your hazard lights
The freeway shoulder is reserved for emergencies and for disabled vehicles, and a vehicle stopped there must be clear of the travel lanes with hazard lights on.
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24. At an intersection where turning on a red arrow is not permitted, the signal shows a red left arrow next to a steady green ball. What may you do?
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Answer D: Go straight or turn right if permitted, but not left
An arrow controls only the movement it points to, so here the red arrow stops the left turn while the green ball still allows the other movements.
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25. Approaching the point this sign refers to, which hazard is most likely?
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Answer A: A vehicle pulling out from the entering road into the driver's path
The main risk is a driver on the entering road who misjudges the gap and pulls out, so covering the brake and being ready to slow is the sensible response.