Iowa DOT Permit Practice Test 49
- Questions25
- Correct to pass20
- Passing score80%
- Minimum age14 years
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1. A signal stands part way up a freeway entrance ramp and turns green briefly again and again. How many vehicles does such a signal normally release on each green?
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Answer A: One for each lane of the ramp
A ramp control signal releases a single vehicle per lane on each green so that vehicles reach the merge one at a time instead of in a bunch.
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2. The passenger-side mirror on most vehicles is convex. What does this mean for the driver?
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Answer D: Vehicles in that mirror are closer than they appear
A convex mirror gives a wider view but shrinks what it shows, so a vehicle looks smaller and therefore farther away than it really is. Allow for this before changing lanes.
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3. The sun is low behind you and shining into the eyes of oncoming drivers. What should you do?
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Answer C: Turn on your headlights and expect oncoming drivers not to see you
Drivers facing the low sun may not see you at all, so make yourself as visible as possible and give way rather than insisting on your right of way.
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4. You are on a four-lane divided highway and a vehicle in your lane is stopped waiting to turn left across the median. What is the normal way past?
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Answer D: Slow down and go by in the lane to the right when it is clear
On a multilane road the free lane beside you is the lawful place to go past a vehicle waiting to turn, and the median is not part of the roadway.
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5. A rectangular red sign with the white words WRONG WAY means that
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Answer C: the driver is already traveling against the legal flow and must not continue
The wrong way sign uses a white legend and border on red and addresses a driver who has entered a ramp or one-way roadway in the wrong direction, who should stop and turn around safely.
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6. What is the correct order of a pass on a two-lane road?
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Answer A: Check ahead and behind, signal left, move out, accelerate past, signal right and return
A pass begins with the decision that the road is clear and ends with a signaled return, and each step warns other drivers before the vehicle moves.
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7. Your car is sinking after leaving the road into deep water and two children are in the back. In what order should you act?
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Answer D: Free yourself from the belt first, then release the children, the oldest one first
You cannot help anyone while you are still belted in, and the oldest child released first needs the least help getting out.
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8. In Iowa, what additional penalty may follow a listed moving violation that causes serious injury to another person?
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Answer D: A fine of five hundred dollars or a suspension of up to ninety days, or both
Iowa Code section 321.482A allows a fine of five hundred dollars or a suspension of driving privileges for not more than ninety days, or both, for a listed violation causing serious injury.
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9. Your vehicle leaves the road and enters deep water. What gives you the best chance of escape?
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Answer B: Release your seat belt and get out through a window as quickly as possible
Water pressure holds the doors shut, so a window is the reliable exit and the first seconds after entry are the best time to use it.
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10. The gates at a railroad crossing are down, and you can see that the road beyond them is clear. What is the correct action?
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Answer A: Wait until the gates rise completely and the lights go out
Lowered gates mean rail traffic is expected, and driving around them removes the only protection the crossing provides.
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11. Why do young drivers carrying several friends face a higher crash risk?
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Answer D: Because young passengers are a strong source of distraction and pressure
Crash risk for new drivers rises with each extra young passenger, mainly through distraction and social pressure.
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12. The lane you are in is marked with a straight arrow and a right-turn arrow together. What does that mean?
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Answer D: Drivers in that lane may either go straight or turn right
A lane marked with two arrows serves both movements, so a driver in it may take either one.
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13. A line of short dashes set closer together than an ordinary lane line runs beside your lane where a ramp leaves the highway. What does a dotted line of that kind convey?
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Answer A: A warning that the lane is about to change function
Dotted lines give guidance or warning about a downstream change, such as a lane that becomes an exit only lane or a lane line carried across an intersection.
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14. You have stopped at a stop sign, but a parked truck blocks your view along the cross street. What should you do?
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Answer A: Creep forward slowly and stop again where you can see
When something blocks the view, a second stop closer to the intersection is the only safe way to see, and it must come before your vehicle enters the traffic lane.
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15. You are circulating in the inner lane of a two-lane roundabout, your exit is next, and a vehicle is beside you in the outer lane. What should you do?
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Answer C: Keep circulating around the island and take that same exit on your next time around
You may not cut across a vehicle in the outer lane; if you cannot exit safely, continue around the circle and try again.
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16. You are turning left at an intersection just beyond the crest of a hill. What is the added risk?
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Answer B: Oncoming vehicles appear with very little warning and close quickly
A crest hides approaching traffic until it is close, so the gap you thought was empty can fill in the time the turn takes.
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17. You know in advance that you will be drinking at an event. What is the most reliable plan?
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Answer A: Arrange a driver who will not drink, or another way home, before the event begins
A decision made before drinking is not affected by alcohol, while judging your own fitness afterward relies on the very ability alcohol impairs first.
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18. A law enforcement officer is directing traffic and waves you forward while the signal facing you shows red. What should you do?
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Answer A: Follow the officer's direction and proceed
Directions given by an officer controlling traffic take priority over signals, signs and pavement markings.
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19. On a long drive you notice repeated yawning, missed exits and drifting toward the lane line. What should you do?
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Answer C: Pull off at a safe place and sleep, or change drivers
Those are warning signs that sleepiness is already interfering with driving, and only rest restores alertness. Fresh air, music and caffeine do not reverse it.
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20. A small signal face beside a bikeway shows red, yellow and green lenses that each carry a bicycle symbol. Whom does it control?
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Answer C: Bicyclists using that crossing or bikeway
A bicycle signal face governs bicycle movements only, and people on foot at the same corner still follow the pedestrian signal.
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21. Once a driver has joined the route this sign begins, how is the rest of the way marked?
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Answer B: By further markers of the same kind at each turn, until the original road is rejoined
The alternate route is signed continuously, with a marker at every turn, so a driver with no local knowledge can follow it back to the original road.
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22. A driver is following you far too closely. What is the best response?
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Answer D: Increase your own following distance and let the driver pass when it is safe
More room ahead of you means you can slow gradually instead of braking hard, which reduces the chance of being struck from behind, and letting the driver by removes the problem entirely.
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23. Where are children in the greatest danger around a school bus?
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Answer B: In the roadway right around the bus, especially in front
The danger zone is the band of roadway around the bus where the driver's view is poorest, and children crossing in front of the bus are hardest to see.
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24. A yellow sign ahead of an underpass reads LOW CLEARANCE 12 FT 6 IN. What does the figure tell you?
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Answer B: The greatest height that can pass beneath the structure
The figure is the actual clearance available, so a vehicle taller than that must leave the road and take a marked alternative route.
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25. How should the inside rearview mirror be adjusted?
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Answer B: So you can see the entire rear window without moving your head
The inside mirror is for the view straight behind you. Framing the whole rear window from your normal seating position gives the widest useful view.