20 questions from the Pennsylvania Driver's Manual (PUB 95). Pick an answer to see the rule behind it.
1. Which of the following is true regarding bicyclists in a roundabout?
Answer: They have the option to function as a vehicle or pedestrian. The handbook states that bicyclists may choose to act as either vehicles or pedestrians within the roundabout environment.
Pennsylvania Driver's Manual (PUB 95), page 54: “Bicyclists have the option to function as a vehicle or pedestrian when using a roundabout.”
2. How does the handbook advise drivers to handle speed when road conditions are wet, slippery, or visibility is poor?
Answer: Drive below the posted speed limit. The handbook instructs drivers to reduce speed below the posted limit when conditions are less than ideal, even if they are currently within the legal limit.
Pennsylvania Driver's Manual (PUB 95), page 43: “When the road is wet or slippery, when you cannot see well or when anything else makes conditions less than perfect, drive below the posted speed limit.”
3. According to the handbook, how should you adjust your speed when a truck is passing your vehicle?
Answer: Reduce your speed slightly and keep it steady. The handbook instructs drivers to slightly reduce speed and maintain it steadily to assist the truck driver during a pass.
Pennsylvania Driver's Manual (PUB 95), page 61: “You will make it easier for the truck driver if you reduce your speed slightly and then keep your speed steady.”
4. When parking parallel to a curb, what is the maximum distance your vehicle should be from the curb?
Answer: No more than 12 inches away. The handbook states that when parking next to a curb, the vehicle must be no more than 12 inches away.
Pennsylvania Driver's Manual (PUB 95), page 56: “If the street you are on has a curb, park as close to it as you can, but no more than 12 inches away.”
5. When making a left turn onto a divided highway, how should a driver proceed to avoid a head-on collision?
Answer: Cross the first roadway when there is a safe gap, then turn left on the other side of the barrier. Drivers must navigate the divided highway in two stages: crossing the first lane safely, then completing the turn after passing the barrier.
Pennsylvania Driver's Manual (PUB 95), page 53: “To correctly turn left onto a divided highway, you need to cross the “first” roadway when there is a safe gap in traffic approaching from your left, and then turn left on the other side of the barrier, when there is a safe gap in traffic approaching from the right on the “second” roadway.”
6. If you are entering a highway via an entrance ramp that shares a short weaving lane with an exit, who must yield?
Answer: The driver entering the highway must yield to the exiting driver. The handbook states that drivers entering the highway are required to yield to those exiting when sharing a weaving lane.
Pennsylvania Driver's Manual (PUB 95), page 56: “If you are the driver entering the highway, you must yield to the exiting driver.”
7. Under which specific condition are drivers exempt from stopping for a school bus with flashing red lights and an extended stop arm?
Answer: When driving on the opposite side of a divided highway. The exception applies only when there is a physical median separating the lanes, allowing drivers on the opposite side to proceed with caution.
Pennsylvania Driver's Manual (PUB 95), page 62: “If you are approaching a school bus that is stopped with its red lights flashing and stop arm extended and you are driving on the opposite side of a divided highway, (i.e. concrete/metal barriers, guide rails or trees/rocks/streams/grass median), you do not have to stop.”
8. Why is it considered most dangerous to pass at night according to the handbook?
Answer: Because you cannot see as far ahead and it is more difficult to accurately judge distances. The handbook attributes the increased danger of night passing to reduced visibility range and difficulty in judging distances.
Pennsylvania Driver's Manual (PUB 95), page 51: “It is most dangerous to pass at night because you cannot see as far ahead, and it is more difficult to accurately judge distances.”
9. What action should you take if you must drive below 40 mph on a limited access highway?
Answer: Use your hazard (four-way) flashers. The handbook instructs drivers to use hazard flashers when driving below 40 mph on limited access highways to alert following traffic.
Pennsylvania Driver's Manual (PUB 95), page 48: “If you must drive below 40 mph on a limited access highway, use your hazard (four-way) flashers to warn the drivers behind you.”
10. What is the most effective action to reduce the risk of injury or death in a traffic crash?
Answer: Wear your seat belt. The handbook identifies wearing a seat belt as the most effective method for reducing injury risk in crashes.
Pennsylvania Driver's Manual (PUB 95), page 80: “THE MOST EFFECTIVE THING YOU CAN DO TO REDUCE YOUR RISK OF GETTING INJURED OR KILLED IN A TRAFFIC CRASH IS: A. Wear your seat belt”
11. What is the maximum speed limit when flashing yellow signals are active in a school zone?
Answer: 15 mph. The handbook specifies a strict limit of 15 mph when school zone signals are flashing.
Pennsylvania Driver's Manual (PUB 95), page 13: “You must travel no faster than 15 mph when the yellow signals are flashing or during the time periods indicated on the sign.”
12. According to the handbook, what does a flashing yellow arrow indicate when making a turn?
Answer: You may turn, but must first yield to oncoming traffic and pedestrians. The handbook specifies that a flashing yellow arrow allows turning after yielding to other traffic and pedestrians.
Pennsylvania Driver's Manual (PUB 95), page 30: “May turn, but must first yield to oncoming traffic and pedestrians”
13. Why should you dim your headlights when following a truck or bus at night?
Answer: To prevent bright lights from blinding the truck driver via reflection. Dimming headlights prevents glare from reflecting off the large mirrors and blinding the truck driver.
Pennsylvania Driver's Manual (PUB 95), page 61: “Bright lights from a vehicle behind will blind the truck driver when they reflect off of the truck’s large side mirrors.”
14. Under what condition is a left turn permitted when an ARROW sign with a flashing yellow arrow is operating?
Answer: When the yellow arrow is flashing, provided you yield to oncoming traffic. The handbook clarifies that a left turn is allowed during a flashing yellow arrow if the driver yields to oncoming traffic.
Pennsylvania Driver's Manual (PUB 95), page 16: “This sign indicates a left turn is permitted when the yellow arrow is flashing, but you must yield to oncoming traffic.”
15. According to the handbook, what does a steady yellow 'X' displayed over a traffic lane indicate?
Answer: You must change lanes because the direction of travel is about to be reversed. The handbook states that a steady yellow X requires drivers to change lanes as the lane direction is reversing.
Pennsylvania Driver's Manual (PUB 95), page 12: “A steady yellow “X” over a traffic lane means you must change lanes because the direction of travel for that lane is about to be reversed. Get ready to leave the lane safely.”
16. According to the handbook, what is the required action when approaching a STOP sign at an intersection?
Answer: Stop completely, check for pedestrians and cross traffic, then proceed. The handbook states that a complete stop is mandatory at a STOP sign, followed by checking for pedestrians and traffic before proceeding.
Pennsylvania Driver's Manual (PUB 95), page 14: “At an intersection with a STOP sign, you must stop completely, check for pedestrians and cross traffic to clear the intersection before you go again.”
17. According to the handbook, what is the most frequent crash type for 16-year-old drivers in Pennsylvania?
Answer: Single-vehicle, run-off-the-road crash. The handbook identifies single-vehicle, run-off-the-road crashes as the most common type for this age group.
Pennsylvania Driver's Manual (PUB 95), page 55: “The most frequent crash type for 16-year-old drivers in Pennsylvania is a single-vehicle, run-off-the-road crash.”
18. What is the minimum time cushion recommended to keep your vehicle out of a truck's rear blind spot?
Answer: Four seconds. The handbook states that a minimum of four seconds is required to ensure the driver is visible and not in the blind spot.
Pennsylvania Driver's Manual (PUB 95), page 61: “Fact: At least four (4) seconds are needed to keep you out of the truck’s rear blind spot”
19. According to the handbook, what is the minimum safe following distance at highway speeds on a dry road?
Answer: 3 seconds of following distance from the car ahead of you. The handbook states that a safe following distance at highway speeds on a dry road is at least 3 seconds.
Pennsylvania Driver's Manual (PUB 95), page 79: “AT HIGHWAY SPEEDS, ON A DRY ROAD, A SAFE FOLLOWING DISTANCE IS AT LEAST: A. 3 seconds of following distance from the car ahead of you”
20. When approaching a curve, when should you slow down?
Answer: Before you enter the curve. The handbook instructs drivers to reduce speed prior to entering the curve to maintain control.
Pennsylvania Driver's Manual (PUB 95), page 55: “TO MAINTAIN CONTROL ON CURVES, YOU MUST SLOW DOWN. DO IT BEFORE YOU ENTER THE CURVE.”