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Iowa driver's examination

(From the 2018 Iowa driver handbook)
Number of tests: 16
Number of questions: 35
Passing score: 28
Directions: To get an Iowa’s license, you will have to take the vision screening and a knowledge test if you have an invalid or expired (over one year) out-of-state license, or if you have not had a driver’s license before. If you have a valid out-of-state license that allows you to drive by yourself, the driving test may be waived.

The Iowa knowledge test shows how well you understand road signs, traffic laws, and safe-driving practices. Everything you must know to pass the knowledge test is in Iowa Driver’s Manual guide. The Knowledge tests include 35 multiple choice questions

If you answer at least 28 questions correctly. you will be well prepared to take the knowledge test for your learner's permit.
You have made error so far
Passing grade —
7 or fewer errors
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1.
This sign is used to warn drivers about:
Upcoming intersections.
Road construction.
Road curves ahead.
2.
As your speed increases, it is important to:
Turn on your headlights.
Look well ahead of your vehicle.
Change lanes frequently.
3.
This sign means:
Stop.
Side road.
Two-way left turn.
Farm machinery.
4.
When driving to an unfamiliar area, you:
Should depend on road signs to find your way.
Should plan your trip in advance.
Only have to know generally where your destination is.
Should always choose the most direct route.
5.
The first thing that alcohol effects is:
Vision.
Judgment.
Balance.
6.
Which is the most common cause of traffic crashes?
New drivers
Human error
Bad weather
Bad roads
7.
To avoid panic stops:
Watch for hazards well ahead of you on the roadway.
Drive with your window partly down.
Accelerate heavily.
8.
This road sign means:
The roadway ends ahead.
Drivers must bear either right or left.
A four-way intersection is ahead.
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