Bad Weather & Night Driving — Nevada
Nevada CDL practice test: 457 free practice questions (Based on the official driver handbook). The official format is not yet verified; check the official site before your test. Bad Weather & Night Driving: 31 questions.
Rain, snow, ice, fog and night driving: visibility, traction and headlight use.
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 | Bad Weather & Night Driving |
| License test | Nevada CDL permit (CLP) knowledge tests |
| Topic questions | 31 (7% of 457 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 (31)
1. When other vehicles have trouble seeing you at dawn or dusk, you can increase your visibility by:
- Turning on your four-way flashers.
- Honking your horn.
- Turning on your headlights. ✓
- Turning on your windshield wipers.
Answer: C. Turning on your headlights.
Turning on your headlights is the way to increase your visibility to other drivers at dawn or dusk. The handbook says that at dawn, dusk, rain, or snow you need to make yourself easier to see. It points out that if you have trouble seeing other vehicles, they likely have trouble seeing you. The instruction is to turn on your lights, and specifically to use your headlights, not just the identification or clearance lights. It also says to use low beams because high beams can bother other people. Turning on your headlights helps other drivers notice your vehicle.
2. Which of the following could reduce the amount of space between the road surface and an overhead object, such as a bridge?
- A repaving of the road ✓
- Wind
- An increased amount of traffic
- Rain
Answer: A. A repaving of the road
A repaving of the road can reduce the clearance between the road surface and an overhead object such as a bridge. The handbook warns that the height posted at a bridge or overpass may no longer be accurate. New pavement can make the road surface higher, which leaves less room between your vehicle and the overhead object. That is why you should not simply trust the posted clearance. The passage gives repaving as the example of a change that can shrink overhead space, so the road-work choice fits directly.
3. When carrying Division 1.1, 1.2, or 1.3 explosives, your vehicle should not be:
- Parked within 300 feet of a bridge. ✓
- Parked within 40 feet of the road.
- Driven in rain or snow.
Answer: A. Parked within 300 feet of a bridge.
You should not park within 300 feet of a bridge when carrying Division 1.1, 1.2, or 1.3 explosives. The handbook's parking rule for these explosives forbids parking within 300 feet of a bridge, tunnel, building, place where people gather, or open fire, except for short operational stops such as fueling. It also says never park within five feet of the traveled part of the road. That makes the bridge-distance choice the one that matches the rule. The passages do not set a 40-foot road distance and do not ban driving in rain or snow.
4. When driving in fog, you should:
- Use the windshield wipers.
- Use low beam headlights. ✓
- Use high beam headlights.
- Use the air conditioning.
Answer: B. Use low beam headlights.
When driving in fog, use low beam headlights. The fog section of the handbook says that if you must drive in fog, you should use low-beam headlights (and fog lights) to get the best visibility, even during the day. It also warns that fog can appear without warning and that visibility can drop fast, so you should slow down before you enter it. High beams are not the choice here, because the handbook's fog advice names low beams.
5. Hydroplaning:
- Only occurs at extremely high speeds.
- Can occur at speeds as low as 30 mph. ✓
- Happens most frequently when tire pressure is too high.
Answer: B. Can occur at speeds as low as 30 mph.
Hydroplaning can occur at speeds as low as 30 mph when there is a lot of water on the road. The handbook says plainly that hydroplaning can happen at speeds as low as 30 mph if there is a lot of water. It also notes that it does not take much water to cause it. So the idea that you must be driving extremely fast to lose traction on wet pavement is wrong, and tire condition matters too: low pressure or worn tread makes hydroplaning more likely because the grooves cannot carry water away.
6. When accelerating on a surface with poor traction, such as a wet road, a driver should:
- Speed up quickly.
- Speed up slowly. ✓
- Not be concerned about the pavement.
Answer: B. Speed up slowly.
On a wet or otherwise slippery road, you should speed up slowly. The handbook's advice for slippery surfaces is to drive slowly and smoothly, start gently and slowly, and get a feel for the road before hurrying. It also says to avoid having to slow down and speed up, and to keep a steady speed. On a wet road, those instructions point to easing into acceleration rather than making a quick increase. A slow, gentle speed-up fits the handbook's overall approach to low-traction conditions.
7. Tie-downs are used to:
- Prevent cargo from shifting. ✓
- Prevent skidding.
- Keep doors closed while driving.
Answer: A. Prevent cargo from shifting.
Tie-downs are used to prevent cargo from shifting. The handbook says flatbed trailers and trailers without sides need cargo secured so it does not shift or fall off. In closed vans, tie-downs can also help prevent cargo shifting that may affect how the vehicle handles. The passage describes tie-downs as equipment such as ropes, straps, chains, and tensioning devices, attached correctly to the vehicle. That supports securing cargo against movement, not preventing skidding or keeping doors closed.
8. When driving at night, you should do all of the following, except:
- Make sure you are rested.
- Make sure your glasses are clean.
- Wear sunglasses. ✓
Answer: C. Wear sunglasses.
You should not wear sunglasses when driving at night. The night-driving section says to make sure you are rested and alert, and if you wear eyeglasses, to keep them clean and unscratched. It then says plainly not to wear sunglasses at night. So resting and clean glasses are recommended for night driving, while sunglasses are the one listed action you should not do. The passage gives the instruction directly and does not add a separate reason beyond it.
9. Roads are most slippery right after it begins to rain because:
- The water mixes with oil and grease on the road. ✓
- The roads are naturally slippery.
- The gravel gets washed to the middle of the lane.
- Some tires are not designed for rain.
Answer: A. The water mixes with oil and grease on the road.
Roads are most slippery right after rain starts because the water mixes with oil left on the road by vehicles. The handbook lists "just after rain begins" as one of the signs of a slippery road. It explains that when rain first starts, the water combines with oil that vehicles have left on the surface, and this makes the road very slippery. It adds that if the rain keeps falling, it washes that oil away, so the worst grip comes early in the storm, not later. That is why you slow down and leave yourself room to stop on a wet road.
10. ____ is a thin layer of ice that forms on road surfaces.
- White ice
- Black ice ✓
- Green ice
- Blue ice
Answer: B. Black ice
Black ice is the thin layer of ice that forms on road surfaces. The handbook describes black ice as a thin, clear layer that lets you see the road underneath it, which makes the road look wet. It also says that when the temperature is below freezing and the road looks wet, you should watch for black ice. That matches the definition in the question. The other choices are not used in the handbook for this road condition.
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Last checked: 2026-10-17 · Verified from official source
Updated: · Based on the official driver handbook