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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. When a hazard is seen ahead, reaction distance:
is how far a vehicle will continue to travel, in ideal conditions, before the driver hits the brakes.
equals total stopping distance minus perception distance.
is the sum of perception distance and braking distance.
None of the above.
2. When approaching someone using a white cane, you should proceed with caution because:
the pedestrian is deaf.
the pedestrian might be using a guide dog.
the pedestrian might be blind.
the pedestrian is blind.
3. Which of the following statements about safe following distance is true?
If weather or road conditions are not ideal, drivers should use three seconds or more to be safe.
The safest way to judge a safe following distance is to use the “Two-Second Rule”.
When the road is slippery, you should allow for more distance between your car and the vehicle in front of you.
All of the above.
4. Which signs have black letters on a yellow or orange background?
Railroad advance warning signs (round)
Warning signs (diamond)
Regulatory signs (vertical rectangle)
None of the above.
5. When the driver behind you wants to pass, you should:
change lanes.
use your brake lights.
speed up.
slow down to allow room for the other driver to complete the pass safely.
6. This road sign means:
winding road sign
Winding road
Right lane closed
Multiple Turns
Pedestrian Crossing
7. Drivers may cross solid yellow lines:
only to pass traffic moving in the same direction.
during daylight hours only.
at any time.
when making turns.
8. Alcohol causes:
poor judgment.
loss of concentration.
reduced perception.
All of the above.
9. Road signs that point out scenic areas and parks are:
black and orange.
brown and white.
green and white.
black and white.
10. Before a school bus stops to load passengers, the driver will usually flash:
red warning lights.
red lights.
green lights.
yellow warning lights.
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IA DMV Written Test Facts

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