Iowa DOT Permit Practice Test 14
- Questions25
- Correct to pass20
- Passing score80%
- Minimum age14 years
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1. You have driven at 70 mph for an hour and then exit onto a town street. What is the common risk?
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Answer B: Your sense of speed adapts, so 35 mph feels slow and you drive too fast
After a long stretch at high speed the brain adapts, so town speeds feel unnaturally slow; check the speedometer instead of trusting the feeling.
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2. You have just driven through a deep puddle and your brakes feel weak. What should you do?
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Answer D: Drive slowly while lightly applying the brakes until they dry and work normally
Wet brakes grip poorly and may pull to one side. Gentle braking at low speed generates heat that dries the pads and discs quickly.
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3. You are turning left from a two-way street onto another two-way street. Where should you begin and end the turn?
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Answer B: Begin in the lane just right of the center line and finish just right of the center line of the new street
You approach a left turn from the lane closest to the center line and enter the new roadway just to the right of its center line, which keeps you clear of oncoming traffic.
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4. Two drivers each have three drinks, one over three hours and one in half an hour. What is the difference?
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Answer C: The fast drinker reaches a higher peak level
The liver removes alcohol at a steady rate, so drinking faster than the body can clear it pushes the blood alcohol level much higher.
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5. You are turning right onto a one-way street. Which lane of that street should you enter?
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Answer C: The lane closest to the right curb
Even though every lane on a one-way street runs your way, a right turn must end in the lane nearest the right curb; you may change lanes afterwards when it is safe.
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6. Your tires drop into deep slush that has built up between the travel lanes. What should you do?
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Answer B: Ease off the accelerator and grip the wheel, since slush tugs the vehicle
Slush grabs at the tires and can pull the vehicle sideways. Reduce power gently, hold the wheel firmly and avoid sudden steering or braking.
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7. A white regulatory sign near a state line reads BUCKLE UP IT IS THE LAW. What is it doing?
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Answer A: Reminding occupants that belt use is required
The safety belt sign restates a law that already applies, and it is usually placed where drivers enter a state or a long rural stretch.
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8. A yellow curve warning sign carries a yellow plaque showing a speed. What does that number mean?
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Answer D: The recommended maximum safe speed for the curve under ideal conditions
An advisory speed plaque on a yellow warning sign gives the recommended maximum speed for the hazard ahead when conditions are good.
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9. What must you be sure of before you pull out to pass on a two-lane road?
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Answer A: That the road ahead is clear far enough for the whole pass
You need enough clear road to pull out, pass and return before any oncoming vehicle arrives, and you must judge that distance before you start.
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10. Besides its height, what else matters about a head restraint?
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Answer C: That it is close to the back of the head, and not far behind it
A restraint that sits far behind the head lets the head snap back before it is caught, so a small gap is important.
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11. A driver in the leftmost lane reaches this sign at an intersection. What must the driver do?
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Answer B: Go straight on or turn right, and reach the destination another way
The restriction holds whatever the traffic or the signal is doing, so the driver has to pass the intersection and plan a different route.
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12. It is dark, it is raining and you are towing a trailer. How should you set your following gap?
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Answer B: Add extra seconds for each condition, well beyond three
Each factor that lengthens your stopping distance or shortens your view calls for another second or more, and they add up when several occur together.
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13. A pedestrian waiting at a curb faces a steady upraised hand. What does that indication mean?
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Answer A: Do not start to cross in that direction
A steady upraised hand forbids entering the crosswalk, while a flashing hand only forbids starting a new crossing.
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14. You are stopped at a red light ready to turn right when a person pushing a stroller steps into the crosswalk. What should you do?
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Answer A: Stay stopped until they have crossed your path
A turn on red gives way to every pedestrian in the crosswalk, and someone pushing a stroller has even less room to react.
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15. You are in the right-hand lane of a multilane street and that lane becomes a right-turn-only lane ahead, but you want to go straight. What should you do?
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Answer B: Change into a through lane before you reach the markings for the turn lane
A lane-use arrow is a regulatory marking, so a driver who wants to continue straight has to leave that lane before it becomes a mandatory turn lane.
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16. Why should heavy objects in the passenger compartment be secured?
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Answer A: Because loose objects fly forward in a crash and can injure the people
Anything loose keeps traveling at the speed of the vehicle when the vehicle stops, so it strikes the occupants with great force.
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17. Besides emergency vehicles, which stationary vehicles trigger Iowa's move over duty when they display flashing lights?
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Answer C: Tow, utility, municipal and highway maintenance, construction, and solid waste or recycling collection vehicles
Iowa Code section 321.323A extends the lane change or slow down duty to stationary towing or recovery, utility maintenance, municipal maintenance, highway maintenance, construction, and solid waste or recycling collection vehicles displaying flashing lights.
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18. On an undivided two-lane road you meet a school bus coming toward you with its red lights flashing and its stop arm out. What must you do?
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Answer C: Stop and wait until the red lights stop flashing
On an undivided road drivers in both directions must stop for a school bus loading or unloading, because children may cross in front of it.
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19. A live power line is lying on your car and the car has caught fire, so you must get out. How should you leave it?
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Answer D: Jump clear without touching the car and ground at once, then shuffle away
Touching the vehicle and the ground together makes you the path to earth, and long strides can bridge the voltage spread through the ground.
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20. Why is hard braking the wrong response to a tire blowout at speed?
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Answer C: Because it can pull the vehicle further out of line and start it spinning
With one tire gone the braking forces are uneven, so heavy braking increases the pull to one side and can spin the vehicle.
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21. Why can a motorcycle ahead of you slow down without any warning light showing?
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Answer B: The rider may slow by downshifting or rolling off
Riders often lose speed by closing the throttle or changing down, which does not switch on the brake light, so watch the machine itself and keep back.
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22. You are approaching a yield sign and no other vehicle is anywhere in sight. What does the sign require?
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Answer A: Slow down and be ready to stop, but stop only if needed
A yield sign requires you to slow and give way, and to stop only when traffic or pedestrians make stopping necessary.
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23. What proof of insurance must an Iowa driver be able to produce while driving?
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Answer A: A proof of financial liability coverage card, on paper or displayed electronically
Iowa Code section 321.20B requires the driver to carry the proof of financial liability coverage card issued for the vehicle, and allows the card to be produced in paper or electronic format.
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24. You wait in the aisle with your signal on for a space that is about to be vacated. What is the risk?
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Answer D: You block the aisle and drivers behind may try to squeeze past
A stopped vehicle turns a two-way aisle into a bottleneck, and drivers who try to get around it pass close to pedestrians and reversing cars.
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25. How does higher speed affect the outcome of a crash?
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Answer A: It leaves less time to react and greatly increases the force of impact
Speed shortens the time available to avoid a hazard and raises the energy released in an impact, so both the likelihood and the severity of a crash increase.