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Anyone who operates a motor vehicle on public streets and roads in Iowa is required to have a driver’s license or learner’s permit. Iowa requires that you pass a vision screening before you get a driver’s license or learner’s permit. The IA DMV written test covers the contents of the Iowa Driver's Manual including highway signs, road rules, and safe driving techniques. The Iowa DMV knowledge test consists of 35 questions, and you'll need at least 28 correct answers to pass (80%). Practice with this sample test to get ready for the official IA driver's license test.
1. If your car goes into water, you should:
wait for water to rush in and let it out in small breaths through your nose.
remove yourself before it starts to sink.
call the fire department immediately.
None of the above.
2. When passing other vehicles, drivers should:
pass the vehicle as slowly as possible.
make sure the passing lane is clear of traffic, and check behind and to the left to make sure another vehicle is not attempting to pass.
apply the brake and slow down.
All of the above.
3. What type of pavement marking shows you which lane you must use for a turn?
Edge line
Crosswalk Lines
4. This sign means:
divided highway ahead sign
Intersection ahead.
The divided highway on which drivers are traveling ends ahead.
Roundabout ahead. Slow down.
The highway ahead is divided into two one-way roadways.
5. If you are continually being passed on the right, you should:
increase your speed immediately.
pull over to the right and stop until the road is clear.
move to the right lane and allow other vehicles to pass you on the left.
move to the left lane and allow other vehicles to pass you on the right.
6. This road sign means:
two way traffic ahead sign
Two-way traffic ahead
Divided highway ahead
Four-lane traffic ahead
No right turn
7. When they see this sign, drivers should:
hill sign
be ready to shift to lower gear.
be ready to brake sharply and stop.
yield to trucks coming from the hill on the right.
None of the above.
8. This sign indicates:
phone service
Do not use your phone while driving
Phone service ahead
Cell phone shop ahead
Emergency line available
9. If you miss your exit on a freeway, do NOT:
turn around or back up.
get back on the freeway in the opposite direction and return to the exit you want.
continue on the freeway and find an alternative route.
10. To avoid having to make an emergency stop while driving in traffic, drivers should:
look ahead and maintain a safe following distance.
drive in the right lane only.
sound their horn to warn other drivers.
drive slower than the flow of traffic.
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IA DMV Practice Test Facts

Number of questions: 35
Correct answers to pass:28
Passing score:80%
Minimum age to apply: 14
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