Pennsylvania DMV Permit Test: Safe Driving Concepts
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Overview
Safe driving means leaving yourself time and space to react. This chapter covers following distance, using your headlights, driving in bad weather and work zones, sharing the road, staying off your phone, and the Move Over law.
On dry pavement, keep at least four seconds between you and the vehicle ahead. Count from when its rear bumper passes a fixed object until your front bumper reaches the same spot. On wet roads, slow down by 5 to 10 mph and leave more space. In a work zone, double your following distance, because rear-end crashes are the most common crash there.
Pennsylvania law requires your headlights whenever your windshield wipers are on because of the weather, and daytime running lights alone do not count. Switch to low beams within 500 feet of an oncoming vehicle and within 300 feet of a vehicle you are following.
Keep your attention on the road. Texting while driving is against the law, and holding a phone while driving is also banned. When you come upon an emergency response area, such as a stopped police car, a tow truck, or a disabled vehicle with hazard lights, cones, or flares, move over a lane if it is safe, or slow down if you cannot.
Key concepts
Four-second following distance
On dry pavement, keep at least four seconds behind the vehicle ahead so you can steer or brake around a hazard. Leave more time on wet or slick roads.
Memory tipCount one thousand one to one thousand four as you pass the same spot.
Source: Pennsylvania Driver's Manual (PennDOT) · as of 2025
Headlights and wipers
Pennsylvania law requires headlights any time your wipers are in continuous or intermittent use because of the weather. Daytime running lights are not enough.
Memory tipWipers on, headlights on.
Source: Pennsylvania Driver's Manual (PennDOT) · as of 2025
Low beams
Use low beams when you are within 500 feet of an oncoming vehicle and when you are following a vehicle within 300 feet.
Memory tip500 feet for oncoming, 300 feet for following.
Source: Pennsylvania Driver's Manual (PennDOT) · as of 2025
Work zones
Slow down, obey the orange signs and flaggers, and double your following distance. Rear-end crashes are the most common crash in work zones.
Memory tipOrange signs: slow down and leave twice the space.
Move Over law
When you approach an emergency response area, such as an emergency vehicle with flashing lights, a tow truck helping a driver, or a disabled vehicle showing at least two warning signs (hazard lights, cones or caution signs, flares), move over a lane if it is safe. If you cannot move over, slow down.
Memory tipMove over if you can, slow down if you cannot.
Source: PennDOT, Move Over Slow Down · as of 2025
Texting and hand-held phones
Pennsylvania bans texting while driving, including reading or writing texts, instant messages, and emails. A newer law also bans holding a phone while driving; hands-free use and emergency calls are allowed.
Memory tipPut the phone away before you start the car.
Source: PennDOT, Distracted Driving · as of 2026
Often tested
- Keep at least a four-second following distance on dry pavement.
- On wet roads, slow down by 5 to 10 mph and leave more space.
- Turn on headlights whenever your wipers are on because of the weather.
- Use low beams within 500 feet of an oncoming vehicle.
- Double your following distance in a work zone.
3 sample questions
Verified practice questions from this unit.
Question 1. On dry pavement, how much following distance does the Pennsylvania Driver's Manual recommend?
- ① At least one second
- ② At least two seconds
- ③ At least four seconds
- ④ At least ten seconds
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Answer: ③ At least four seconds
Key point: Keep at least a four-second following distance
The manual teaches a four-second following distance on dry pavement. It gives you time to steer or brake to avoid a hazard. Leave more space on wet or slick roads.
Wrong choices
- At least one second: One second is far too close to stop in time.
- At least two seconds: Two seconds is less than the four seconds the Pennsylvania manual teaches.
- At least ten seconds: Ten seconds is more than needed and is not the manual's rule.
Question 2. It starts to rain and you turn on your windshield wipers. What else does Pennsylvania law require?
- ① Turn on your headlights
- ② Turn on your hazard lights
- ③ Turn on your high beams
- ④ Nothing else
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Answer: ① Turn on your headlights
Key point: Wipers on because of weather: headlights on
Pennsylvania law requires you to turn on your headlights whenever your wipers are on because of the weather, whether they run all the time or on and off.
Wrong choices
- Turn on your hazard lights: Hazard lights are for a stopped or disabled vehicle, not for driving in rain.
- Turn on your high beams: High beams can make it harder to see in rain and can blind other drivers.
- Nothing else: The law does require headlights when your wipers are in use for weather.
Question 3. Is it legal to send or read text messages while driving in Pennsylvania?
- ① Yes, if you keep one hand on the wheel
- ② Yes, if you are driving under 25 mph
- ③ Yes, but only on highways
- ④ No, it is against the law
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Answer: ④ No, it is against the law
Key point: Texting while driving is against the law
Pennsylvania bans texting while driving. That includes sending, reading, or writing text messages, instant messages, and emails while the vehicle is moving.
Wrong choices
- Yes, if you keep one hand on the wheel: Keeping one hand on the wheel does not make texting legal.
- Yes, if you are driving under 25 mph: The ban applies at any speed.
- Yes, but only on highways: The ban applies on all roads.
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