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Iowa driver's examination

(From the 2019 Iowa driver handbook)
Number of tests: 24
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.
Only ____ can lower blood alcohol concentration (BAC) and reduce alcohol's effects on a body.
Drinking caffeine
Eating foods high in fat
Time
2.
Your tire blows out while you are driving. You should:
Slam on your brakes.
Hold your steering wheel tightly and slow to a stop.
Keep driving normally.
Turn on your emergency flashers and continue driving.
3.
This sign tells you that:
georgia winding road road sign
No turns are allowed on the road.
The road narrows ahead.
There is a series of curves ahead.
4.
When passing another vehicle:
Pass the vehicle as slowly as possible.
Drive at the same speed as the vehicle you are passing.
Pass the vehicle as safely and as quickly as possible.
5.
You may drive across a dashed white line:
At any time.
Only during daylight hours.
When it is safe to change lanes.
Only when passing a motorcycle.
6.
A red and white triangular sign at an intersection means:
Slow down if an emergency vehicle is approaching.
Look both ways as you cross the intersection.
Always come to a full stop at the intersection.
Slow down and be prepared to stop if necessary.
7.
You are driving on a one-way street. You may only turn left onto another one-way street if:
You increase your speed before the turn.
Traffic on the street moves to the right.
Traffic on the street moves to the left.
8.
A diamond-shaped sign means:
washington warning road sign
Yield.
Stop.
Warning.
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