Worn or bald tires are dangerous primarily because they:

Reduce traction and raise the risk of skidding

Cause the car to pull hard to one side

Only matter on snow and ice, not on wet pavement

Wear out the brakes faster than normal

When driving at night, you should:

Slow down and leave more following distance

Use parking lights so you do not dazzle others

Keep your daytime speed and following distance

Look straight at oncoming headlights to judge them

Using a handheld cell phone while driving is:

Banned in most states and a major crash risk

No riskier than talking to a passenger

Safe as long as you keep your eyes on the road

Legal for every driver in every state

Free Pennsylvania PennDOT Practice Permit Test - Practice Test 4 2026

25 questions83% to passExplanations includedFree

18Real test questions

83%Pass score

This Practice Test 4 is modeled on the Pennsylvania Department of Transportation (PennDOT) written knowledge exam, which has 18 questions; to pass you need 15 of 18 correct (83%). These 25 questions rotate through traffic laws, road signs, and right-of-way - the core topics the PennDOT tests most heavily. Every question includes an explanation, so you learn the rule behind each answer - not just whether you got it right.

Question 1 of 25

What does this sign mean?

Tip: Press 1-4 to select, Enter to submit, F to flag

Inside this test

What's on the Pennsylvania Practice Test 4

The real Pennsylvania knowledge test has 18 questions, and to pass you need 15 of 18 correct (83%). Practice Test 4 is a 25-question set drawn from 49 questions, scored against a practice target of 83%.

Topics in this test's question pool

Road signs 15
Safe driving 12
Traffic laws 9
Vehicle equipment 4
Right of way 4
Alcohol & drugs 2
Emergencies 2
Parking 1

49 questions in the pool, 8 of them written specifically for Pennsylvania. Each attempt shows 25 in a new order.

Sample questions from this test, with answers

Want to test yourself first? Take the test above before reading these. Every answer below is checked against the source shown.

1. In Pennsylvania, a driver under 21 is considered to be driving under the influence (DUI) at a BAC of:
- A. 0.02 (correct)
- B. 0.05
- C. 0.08
- D. 0.10
Why: Pennsylvania treats a BAC of 0.02 or higher as DUI for drivers under 21. A first under-21 DUI conviction brings a full-year license suspension, a fine of $500 to $5,000 and possible jail time.
Source: official Pennsylvania driver handbook, Ch. 4, p.82 (PDF p.86) and Zero Tolerance Law, p.84 (PDF p.88)
2. It is daytime and light rain has your wipers running on the intermittent setting. What does Pennsylvania law require?
- A. Daytime running lights are enough
- B. Headlights and tail lights must be on (correct)
- C. Headlights are needed only after sunset
- D. Hazard flashers must be on with wipers
Why: Pennsylvania's headlight-wiper law says that any time your wipers run because of the weather, steady or intermittent, your headlights must be on. Daytime running lights do not count, because your tail lights must also be lit.
Source: official Pennsylvania driver handbook, p.43 (PDF p.47), Headlight/Windshield Wiper Law
3. A warning sign showing an arrow splitting into two directions around a vertical line indicates:
- A. A divided highway begins ahead (correct)
- B. A fork where you must choose a route
- C. A passing lane opens ahead
- D. Two-way traffic begins ahead
Why: This sign warns that a divided highway begins ahead - a median or barrier will separate the opposing lanes. Keep right of the divider.
Source: Federal MUTCD 11th ed. (Dec 2023) 2C.20
4. At a roundabout, in which direction does traffic flow and who has priority?
- A. Clockwise; traffic in the circle has priority
- B. Counterclockwise; circulating traffic has priority (correct)
- C. Counterclockwise; the larger vehicle has priority
- D. Counterclockwise; entering traffic has priority
Why: In the United States, traffic in a roundabout flows counterclockwise, and vehicles already circulating in the roundabout have the right of way. Entering drivers must yield and merge into a safe gap.
Source: official Pennsylvania driver handbook
5. What should you do before opening your car door after parking on a street?
- A. Open it slowly so others can see it move
- B. Check mirrors and look for traffic and cyclists (correct)
- C. Check only the side mirror, then open
- D. Open it fully so passing drivers will steer around
Why: Before opening your door into traffic, check your mirrors and look over your shoulder for approaching vehicles and cyclists. 'Dooring' a passing cyclist is dangerous and illegal in many states.
Source: official Pennsylvania driver handbook
6. When should you use your vehicle's emergency hazard lights?
- A. When parking briefly in a no-parking zone
- B. When your car is disabled on or near the road (correct)
- C. To thank a driver who let you merge
- D. When you plan to change lanes or make a turn
Why: Hazard lights warn others that your vehicle is stopped, disabled or a hazard. Rules for using them while moving (for example in heavy rain) differ between states, so follow your state handbook.
Source: official Pennsylvania driver handbook

More Pennsylvania facts, the full requirements table and the printable PDF are on the Pennsylvania permit practice test page.

Pennsylvania PennDOT Test Info

Questions on real test: 18
Passing score: 83%
Correct needed: 15 of 18 correct (83%)
Minimum age: 16 years old
Testing agency: Pennsylvania Department of Transportation

Official PA PennDOT Website ↗

More Pennsylvania Tests

Study Tip

Don't just aim to pass this Pennsylvania Practice Test 4 once - keep taking it until you score 83% or higher two or three times in a row. Read the explanation after every question, even the ones you get right, to lock in the rule before your PennDOT exam.