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 DMV written test covers the contents of the Iowa Driver’s Manual including highway signs, road rules, and safe driving techniques. The knowledge test consists of 35 questions, and you 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 driving near a pedestrian who is using a white cane, you need to use extra caution because:
he or she is deaf.
he or she has a mental disability.
he or she has a walking problem.
the pedestrian is blind.
3. Which of the following statements about safe following distance between your vehicle and the vehicle in front of you is true?
An inexperienced driver should maintain at least a three-second following distance under normal driving conditions.
A two-second following distance may be sufficient in normal conditions for an experienced driver.
When the road is slippery, a following distance of six or more seconds is recommended.
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.
go the same speed.
speed up.
slow down to allow room in front of your vehicle and for the other driver to complete the pass safely.
6. This road sign means:
Winding road
Right lane closed
Multiple Turns
Pedestrian Crossing
7. You may cross solid yellow lines:
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.
slower judgment.
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.
amber 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%
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