Driver's Permit Knowledge Test (Car) — All Questions
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What does a red, eight-sided (octagon) sign always mean?
- a.Slow down and be ready to yield
- b.Come to a complete stop✓
- c.No entry for any vehicle
- d.Railroad crossing ahead
The octagon shape and red color are reserved exclusively for the STOP sign. You must make a complete stop at the marked stop line, crosswalk, or corner, then proceed only when it is safe. The unique shape lets you recognize it even when snow, dirt, or darkness hides the word STOP.
A yellow, diamond-shaped sign is used to communicate what type of message?
- a.A traffic law you must obey
- b.Directions to a nearby town
- c.A warning about conditions ahead✓
- d.A rest area or service location
Yellow diamond signs are warning signs. They alert you to hazards or changes ahead such as a curve, merge, school zone, or slippery surface so you can slow down and prepare. Regulatory signs that state a law are typically white with black or red lettering, while service and guide signs use blue or green.
What does a solid yellow line next to your lane tell you?
- a.Passing across it is not permitted✓
- b.You may pass whenever it is clear
- c.The road ahead becomes one-way
- d.You must exit at the next ramp
Yellow lines separate traffic moving in opposite directions. A solid yellow line on your side means passing is prohibited because oncoming traffic could be approaching. A broken yellow line means passing is allowed when the way ahead is clear; white lines, by contrast, separate lanes of traffic moving in the same direction.
You are approaching an intersection and the traffic signal shows a steady yellow light. What does it mean?
- a.Speed up to clear the intersection
- b.The light is broken; treat as a stop sign
- c.Pedestrians have the right of way now
- d.The light is about to turn red; stop if you can safely✓
A steady yellow light warns that the signal is about to turn red. You should stop if you can do so safely; if you are already too close to stop safely, proceed through with caution. Trying to beat the light by speeding up is a common cause of dangerous intersection collisions.
At a four-way stop where two vehicles arrive at exactly the same time, who has the right of way?
- a.The larger or heavier vehicle
- b.The vehicle on the right✓
- c.The vehicle turning left
- d.Whoever accelerates first
At a four-way stop, the vehicle that arrives first goes first. When two vehicles arrive at the same time, the driver on the left yields to the driver on the right. Always make eye contact and be prepared to yield even when you have the right of way, because right of way is something you give, not take.
When you enter a roundabout, which direction do you travel and who must yield?
- a.Clockwise; entering traffic has priority
- b.Counterclockwise; you never have to yield
- c.Counterclockwise; you yield to traffic already circulating✓
- d.Clockwise; you yield to traffic entering behind you
In countries that drive on the right, traffic in a roundabout flows counterclockwise. You must yield to vehicles already circulating inside the roundabout before you enter, then merge into a gap. Signal when you plan to exit, and never stop inside the circle unless traffic ahead forces you to.
When you want to make a legal left turn at an intersection, from which lane and to which lane should you turn?
- a.From the far left lane into the nearest left lane going your direction✓
- b.From any lane into any open lane
- c.From the right lane cutting across to the left
- d.From the center of the intersection into oncoming traffic
Begin a left turn from the lane closest to the center line and finish in the lane just to the right of the center line on the road you enter. This keeps your path predictable and avoids crossing into other lanes of traffic. Yield to oncoming traffic and to pedestrians in the crosswalk before completing the turn.
What does the 'basic speed law' require of every driver?
- a.Always drive exactly at the posted limit
- b.Match the speed of the fastest car around you
- c.Drive at least 10 mph below the limit at all times
- d.Never drive faster than is safe for current conditions✓
The basic speed law says you must never drive faster than is safe for current conditions, regardless of the posted limit. In rain, fog, heavy traffic, or poor visibility, the safe speed may be well below the posted maximum. The posted limit is the fastest you may legally travel under ideal conditions, not a target you must always reach.
The 'three-second rule' is used to help you judge what?
- a.How long to signal before a turn
- b.A safe following distance behind the car ahead✓
- c.How long you may park at a meter
- d.The time a yellow light stays lit
The three-second rule sets a safe following distance. Pick a fixed object the car ahead passes, then count 'one-thousand-one, one-thousand-two, one-thousand-three'; if you reach the object before you finish counting, you are following too closely. Increase the gap to four seconds or more in rain, fog, or when following large vehicles.
What is the safest way to check a blind spot before changing lanes?
- a.Rely only on your rearview mirror
- b.Assume the lane is clear if no horn sounds
- c.Glance over your shoulder in the direction you are moving✓
- d.Close your eyes and merge quickly
Mirrors leave blind spots areas beside and slightly behind your car that they cannot show. Before changing lanes, check your mirrors, signal, and then take a quick glance over your shoulder toward the lane you are entering. Keep the glance brief so you do not lose track of traffic ahead of you.
If your vehicle begins to hydroplane on a wet road, what should you do?
- a.Ease off the gas and hold the wheel steady✓
- b.Brake hard and turn sharply
- c.Accelerate to regain traction
- d.Pump the brakes rapidly while steering
Hydroplaning happens when your tires ride up on a film of water and lose contact with the road. React by easing your foot off the accelerator and keeping the steering wheel steady until the tires regain grip. Avoid slamming the brakes or making sharp steering movements, which can throw the car into a skid; slowing down in the rain prevents it in the first place.
When driving at night, why should you avoid overdriving your headlights?
- a.It wastes battery power
- b.It is illegal in every state
- c.Headlights damage your eyes at high speed
- d.You may not be able to stop within the distance you can see✓
Overdriving your headlights means going so fast that your stopping distance is longer than the distance your headlights illuminate. If a hazard appears at the edge of your light, you could hit it before you can stop. At night, reduce speed so you can always stop within the area lit ahead of you, and use high beams on open roads when no traffic is near.
A pedestrian is waiting to cross at a marked crosswalk with no signal. What must you do?
- a.Honk to warn them to wait
- b.Continue since cars always have priority
- c.Yield and let the pedestrian cross✓
- d.Speed up to pass before they step out
Drivers must yield the right of way to pedestrians in marked and many unmarked crosswalks. Slow down or stop and let the person cross safely before you proceed. Never pass a vehicle that is stopped at a crosswalk, because it may be yielding to a pedestrian you cannot yet see.
The large areas around a truck where the driver cannot see other vehicles are called what?
- a.No-zones (blind spots)✓
- b.Safety cushions
- c.Buffer lanes
- d.Escape ramps
Large trucks have big blind spots on all four sides known as no-zones, including directly behind, in front, and along both sides. If you cannot see the truck driver in their side mirror, they cannot see you. Avoid lingering in these areas, and pass on the left where the blind spot is smaller.
A school bus ahead of you stops and extends its red flashing lights and stop arm on a two-lane road. What must you do?
- a.Pass slowly on the left
- b.Stop and stay stopped until the lights turn off✓
- c.Honk and continue past
- d.Merge right and keep driving
Flashing red lights and an extended stop arm mean children are getting on or off the bus. On a two-lane road, traffic in both directions must stop and remain stopped until the lights stop flashing and the arm folds back. Children may cross unexpectedly, so wait patiently even if you do not see them.
You hear a siren and see an emergency vehicle approaching with flashing lights. What should you do?
- a.Stop immediately in your lane
- b.Speed up to get out of the area
- c.Continue at the same speed
- d.Pull over to the right edge and stop until it passes✓
When an emergency vehicle approaches using its siren or flashing lights, pull over to the right edge of the road and stop until it has passed. This clears a path so police, fire, or ambulance crews can respond quickly. Do not stop in the middle of an intersection; drive through it first, then pull to the right.
In most states, what is the blood alcohol concentration (BAC) limit at which an adult 21 or older is considered legally impaired to drive?
- a.0.05%
- b.0.08%✓
- c.0.10%
- d.0.02%
The nationally standard legal limit for drivers 21 and older is 0.08% BAC; at or above this level you can be arrested for driving under the influence. However, impairment begins with the first drink, and you can be charged at lower levels if your driving is affected. Note that one state (Utah) uses a stricter 0.05% limit, so exact values can vary.
Under 'zero tolerance' laws, what BAC level can put a driver under 21 in violation?
- a.A very low level such as 0.01% or 0.02%✓
- b.Only 0.08% or higher
- c.0.05% exactly
- d.There is no limit for young drivers
Because drivers under 21 cannot legally drink, zero-tolerance laws set a very low BAC threshold, commonly 0.01% or 0.02% depending on the state. Even a small amount of alcohol can trigger a license suspension for a minor. The safest and only legal choice for anyone under 21 is to drive with a BAC of zero.
What does the 'implied consent' law mean when you drive on public roads?
- a.You agree to let anyone borrow your car
- b.You promise never to drink alcohol
- c.By driving, you agree to chemical testing if lawfully arrested for DUI✓
- d.You consent to random vehicle searches at any time
Implied consent means that by choosing to drive on public roads, you have already agreed to submit to breath, blood, or urine testing if you are lawfully arrested for driving under the influence. Refusing the test typically results in an automatic license suspension, often longer than the penalty for failing it. This law helps enforce impaired-driving statutes.
What is the main purpose of a graduated (provisional) driver licensing system for new drivers?
- a.To make licensing more expensive
- b.To limit how far new drivers can travel
- c.To require new cars for teens
- d.To phase in driving privileges as experience grows✓
Graduated licensing eases new drivers into full privileges in stages, starting with a supervised learner permit and moving to a provisional license with restrictions. Common restrictions limit nighttime driving and the number of young passengers during the first months. These rules reduce crash risk while new drivers build experience under lower-risk conditions.
In a driver point system, what generally happens if you accumulate too many points in a set period?
- a.Your license may be suspended or revoked✓
- b.You receive a cash reward
- c.Your speed limit is raised
- d.Nothing changes on your record
Many states assign points to your driving record for moving violations such as speeding or running a red light. If you collect too many points within a defined time, your license can be suspended or revoked and your insurance costs usually rise. Points typically stay on your record for a set number of years before dropping off.
Why must young children be secured in a child safety seat or booster seat rather than a regular seat belt?
- a.It is only a suggestion, not a law
- b.Adult belts do not fit small bodies safely✓
- c.Children distract the driver less that way
- d.Booster seats are required only on highways
Child restraint laws require infants and young children to ride in car seats or booster seats appropriate for their age, weight, and height. Standard seat belts are designed for adult bodies and can injure a small child in a crash if used alone. Correctly installed child seats greatly reduce the risk of serious injury or death for young passengers.