Speed Limits & Following Distance — Iowa
Iowa motorcycle permit practice test: 339 free practice questions (Based on the official driver handbook). The official format is not yet verified; check the official site before your test. Speed Limits & Following Distance: 20 questions.
Posted speed limits, school and construction zones, stopping and following distance.
This topic page is still being reviewed against the official handbook. Until review is finished it is hidden from search engines.
| Topic / Metric | Value |
|---|---|
| Topic | Speed Limits & Following Distance |
| License test | Iowa Motorcycle permit test |
| Topic questions | 20 (6% of 339 total) |
| Review status | This topic page is still being reviewed against the official handbook. Until review is finished it is hidden from search engines. |
Official handbook
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Questions (20)
1. To adjust for added weight when riding with a passenger, you should:
- Operate at a slower speed than usual. ✓
- Maintain a shorter following distance that you would if riding without a passenger.
- Operate at a faster speed than usual.
- Brake a little later than you would if riding without a passenger.
Answer: A. Operate at a slower speed than usual.
Operate at a slower speed than usual — the manual says to ride a little slower with a passenger, especially in curves, corners, and over bumps. A passenger makes the motorcycle heavier, so it can take longer to speed up, slow down, or turn. Because of that, the manual tells you to ride a little slower when carrying a passenger, especially when taking curves, corners, or bumps. It also warns that if any part of the bike scrapes the ground at lean angle, you can lose steering control. Slower speed leaves you more room to handle the heavier bike's delayed response.
2. When riding with a passenger, you should do all of the following, except:
- Ride more slowly than you would normally.
- Start slowing earlier than you would normally.
- Increase your following distance.
- Not communicate with the passenger while riding. ✓
Answer: D. Not communicate with the passenger while riding.
You should not stop communicating with your passenger; that is the exception. You should not stop communicating with your passenger. The manual says to instruct your passenger on the basics before starting the trip, so talking with a passenger is expected. It also says a passenger changes how the motorcycle responds and tells you to ride a little slower, begin slowing earlier, and keep a larger space cushion or wait for larger gaps. Those are the passenger adjustments the manual lists; silence is not one of them.
3. What can help reduce the risk of a head or neck injury in the event of a crash?
- Riding on the shoulder
- Riding under the speed limit
- Wearing a helmet ✓
- Not allowing a passenger on the motorcycle
Answer: C. Wearing a helmet
Wearing a helmet is what can help reduce the risk of a head or neck injury in a crash. The manual says one in five motorcycle crashes causes head or neck injuries, and those injuries account for most serious and fatal motorcyclist injuries. It also states that, with few exceptions, properly wearing a quality helmet reduces head and neck injuries, and that a helmet can cut their number and severity. That is why the helmet choice fits the question: the manual treats a securely fastened, quality helmet as the most important thing you can do to improve your chances in a crash.
4. If someone is tailgating you, you should:
- Ride faster to shake them.
- Alert the local police.
- Ride on the shoulder of the road.
- Allow them to pass. ✓
Answer: D. Allow them to pass.
Allow the tailgating driver to pass you. The manual treats a tailgater as someone you want in front of you, not behind you. It says to let the person pass. If that is not possible, slow down and leave more room ahead so both of you have stopping space; that gap can also make passing easier. It also mentions leaving the road or using a parking area. Those steps point to allowing the pass rather than speeding away.
5. When may you not need to increase your following distance?
- When the road is slippery
- When there is a lot of traffic
- When you can see through the vehicle in front of you ✓
- When it is raining
Answer: C. When you can see through the vehicle in front of you
You may not need to increase your following distance when you can see through the vehicle in front of you. The manual says a motorcycle normally needs at least a two-second following distance. It then lists when to open up to three seconds or more: when the pavement is slippery, when you cannot see through the vehicle ahead, or when heavy traffic means someone may squeeze in front of you. Being able to see through the vehicle removes the visibility reason for a bigger gap, so that condition alone does not require you to increase it.
6. If carrying a load in a sidecar, the motorcycle's stopping distance:
- May be increased. ✓
- May be decreased.
- Is not a concern.
- Will be similar to the stopping distance of a two-wheeled motorcycle.
Answer: A. May be increased.
Carrying a load in a sidecar may increase the motorcycle's stopping distance. The manual says that when a three-wheel motorcycle or sidecar rig is loaded, performance can drop and stopping distances can become longer, so you should allow extra distance. That directly supports the idea that the distance needed to stop may increase. The passage about securing and placing sidecar loads does not give a stopping-distance rule by itself, but it reinforces that a sidecar load changes how the vehicle handles.
7. Normally, you should maintain a following distance of:
- One second.
- Two seconds. ✓
- Three seconds.
- Four seconds.
Answer: B. Two seconds.
Normally, keep a two-second following distance behind the vehicle ahead. The manual says following too closely is a common factor in motorcycle crashes and that motorcycles need as much stopping distance as cars. It sets a minimum of two seconds in normal traffic. To check it, pick a fixed marker and count one-thousand-one, one-thousand-two when the rear of the vehicle ahead passes it. If you get there before the count of two, you are too close. The two-second gap gives you a minimum space to stop or swerve if the vehicle ahead stops suddenly and helps you see road hazards.
8. Increase your following distance:
- If the roadway is slippery. ✓
- If there are only a few vehicles on the roadway.
- If the sun is shining.
- If drivers are following the speed limit.
Answer: A. If the roadway is slippery.
Increase your following distance if the roadway is slippery. The manual gives a two-second following distance as the minimum space to stop or swerve if the vehicle ahead stops suddenly. It says to open up a three-second or more following distance when the pavement is slippery, when you cannot see through the vehicle ahead, or when traffic is heavy and someone may squeeze in front of you. On a slippery road, your motorcycle needs more distance to stop, so the slippery-roadway choice is the one that calls for more following space.
9. If a driver is tailgating you, you should:
- Speed up.
- Allow them to pass. ✓
- Prevent them from passing.
- Move to one side of your lane to allow them to share the lane.
Answer: B. Allow them to pass.
If a driver is tailgating you, let them pass. The manual's guidance on tailgaters is to make it easy for them to get by you. If you can't let them pass right away, you slow down and leave more room in front of you, which gives both of you room to stop in an emergency and also nudges the tailgater to go around. Leaving the road or pulling into a parking area and coming back later is another option the manual gives. Letting the tailgater get ahead is the point of all of this.
10. If you think stopping your motorcycle will take longer than usual, you should:
- Lengthen your following distance. ✓
- Shorten your following distance.
- Leave the road.
- Speed up.
Answer: A. Lengthen your following distance.
If stopping your motorcycle will take longer than usual, lengthen your following distance. The manual gives a two-second gap as the normal minimum, then says a larger cushion of space is needed when your motorcycle will take longer than normal to stop. The same passage adds that you should open up three seconds or more on slippery pavement, when your view past the vehicle ahead is blocked, or in heavy traffic. So when stopping takes longer, the fix is more room in front of you, not less.
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Last checked: 2026-10-17 · Not yet verified
Updated: · Based on the official driver handbook