Basic Vehicle Safety
What is the term for the loss of traction that occurs when tires ride on a layer of water instead of the road?
What is Hydroplaning
How does increasing your speed affect the distance needed to stop your vehicle?
it increases stopping distance
What is the purpose of a vehicle’s anti-lock braking system (ABS)?
to help prevent the wheels from locking during hard braking so the driver can maintain steering control?
What is the difference between a regulatory sign and a warning sign?
a regulatory sign communicates traffic laws or restrictions, while a warning sign alerts drivers to potential hazards?
Why should you avoid using cruise control on slippery roads?
because reduced traction can cause loss of control, and cruise control may make it harder to respond safely?
How does the force of impact change when a vehicle’s speed doubles?
the kinetic energy increases fourfold, assuming the vehicle's mass stays the same?
Why are bridges and overpasses often more likely to develop ice before other road surfaces?
because cold air can circulate both above and below them, causing them to cool faster
What is the purpose of the three-second following rule?
To ensure a time based safety measure in case of collision
Why should you avoid braking suddenly while driving on a wet curve?
sudden braking can reduce traction and cause the vehicle to skid
When an emergency vehicle approaches from behind with its lights and siren activated, what should you do?
yield by moving toward the nearest edge of the roadway and stopping when safe.
What is hydroplaning, and what causes it?
when tires lose contact with the road because water builds up between the tires and the road surface.
What does a solid yellow line on your side of the centerline generally mean?
passing is prohibited on your side, subject to applicable road markings and exceptions
Why should you increase your following distance when driving on wet or icy roads?
because reduced traction increases stopping distance
What is the difference between oversteer and understeer?
oversteer is when the rear tires lose traction and the vehicle turns more than intended,
understeer is when the front tires lose traction and the vehicle turns less than intended
Why is it dangerous to brake hard while driving through a curve?
sudden braking can reduce stability and cause the tires to lose traction?
When approaching a railroad crossing with flashing red lights, what must a driver do?
stop and remain stopped until it is safe and the warning signals permit proceeding
What is the difference between perception time and reaction time?
perception time being the time needed to recognize a hazard, and reaction time being the time needed to respond to it
Why can driving below the speed limit still be dangerous in certain situations?
driving too slowly for traffic or road conditions can disrupt traffic flow and create hazards
What should a driver do if their vehicle begins to hydroplane?
ease off the accelerator, avoid sudden braking or steering, and maintain control until traction returns
Why should you look far ahead while driving instead of focusing only on the vehicle directly in front of you?
identify hazards earlier and allow more time to react
A driver is traveling at 60 mph. Approximately how far does the vehicle travel in one second, before accounting for braking?
88 feet
Why does doubling your speed increase braking distance by approximately four times under the same conditions?
braking distance is approximately proportional to the square of speed
Why can a vehicle lose traction when braking and turning at the same time?
the tires have a limited amount of traction to divide between braking and turning
Why is it especially dangerous to drive at normal speeds when visibility is reduced by heavy fog?
reduced visibility decreases the time available to detect hazards and react safely
A vehicle traveling downhill loses braking effectiveness because the brakes overheat. What driving technique helps prevent this situation before it occurs?
selecting a lower gear to use engine braking and controlling speed before descending