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Iowa driver's examination

(From the 2019 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.
An orange-colored sign like this means:
There is roadwork ahead.
You must change lanes ahead.
There is a detour ahead.
2.
At dusk or on overcast days, you should:
Drive using your four-way flashers.
Drive using your parking lights.
Not turn on any vehicle lights.
Turn on your headlights.
3.
You are coming to a railroad crossing where the crossing signals are flashing. You should:
Stop and look for a train.
Slow down and look for a train.
Look for a train, then speed up.
Do what the vehicle ahead of you does.
4.
In which of the following scenarios should your wheels not be pointed straight ahead?
When waiting to make a left turn at a traffic light.
When parked on a hill or sloping driveway.
When parked on the side of a level roadway where there is no curb.
5.
This road sign means:
Cars in the right lane must slow down.
No left turn.
Merge.
6.
If you are feeling fatigued while driving, you should:
Increase your speed to reach your destination more quickly.
Increase the volume of your radio.
Find a safe parking area to take a short nap.
7.
A solid white line on the right edge of the highway slants in to the left. That shows that:
There is an intersection just ahead.
You are approaching a construction area.
You will be required to turn left just ahead.
The road will get narrower.
8.
The effect that lack of sleep has on your safe driving ability is the same as:
The effect that alcohol has.
The effect that amphetamines have.
The effect that anger has.
The effect that driving with teenagers has.
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