Kentucky Car / Permit practice
Speed & Space Management
Choosing a safe speed, keeping a space cushion, adjusting for weather and traffic, and understanding stopping distance.
Content reviewed against official driver handbooks · July 7, 2026
14 questions · pass with 11 correct. You get instant feedback and an explanation after every answer.
Study questions with answers
12 sample Speed & Space Management questions with the correct answer, a short explanation, and the official handbook reference. Read through them, then take the quiz above.
1. On dry pavement with good brakes at 50 mph, braking alone can take about how far?
Correct answer: About 158 feet
At 50 mph on dry pavement with good brakes, the braking distance is roughly 158 feet, on top of perception and reaction distance.
2. When a driver behind you clearly wants to pass, what is a helpful response?
Correct answer: Ease off the accelerator to let them move ahead
Ease up on the gas, and slow if needed, to open space in front so the passing driver can complete the move.
3. How can you help vehicles entering a multi-lane or limited-access road?
Correct answer: Move over a lane or adjust your speed to make room
Make space for merging traffic by changing lanes when possible or adjusting your speed.
4. To manage space to the sides, what does the manual suggest about the center line?
Correct answer: Avoid crowding it, keeping space from oncoming traffic
Keep as much room as possible between you and oncoming vehicles by not crowding the center line marking.
5. How often does the manual suggest glancing at your speedometer?
Correct answer: About once a minute
Make it a habit to check the speedometer about once a minute to be sure you are at a safe, legal speed.
6. Total stopping distance is made up of which combination?
Correct answer: Perception distance, reaction distance, and braking distance
Total stopping distance combines the distance to perceive the hazard, the distance to react, and the distance to brake to a stop.
7. The manual gives the average alert driver's reaction time as about what?
Correct answer: Three-quarters of a second to one second
An alert driver's reaction time averages roughly three-quarters of a second to one second, the time to move from the gas to the brake.
8. Why keep extra space between your vehicle and parked cars?
Correct answer: A door may open or someone may step out suddenly
Someone could step from between parked cars or a door could open, so leave a buffer as you pass parked vehicles.
9. If you find yourself in another driver's blind spot, what should you do?
Correct answer: Speed up or drop back to get out of it
Do not remain in another driver's blind spot; either accelerate ahead or fall back so you can be seen.
10. In heavy rain, snow, or thick fog where you cannot see beyond about 100 feet, you should not drive faster than what speed?
Correct answer: Twenty-five miles per hour
When visibility drops to around 100 feet you cannot safely exceed 25 mph, and you should switch to low beams.
11. What is meant by keeping a 'space cushion' around your vehicle?
Correct answer: Open space on all sides so you have room to react
A space cushion is the buffer of open room around your vehicle; the more space you keep, the more time you have to respond.
12. When should you increase your following distance?
Correct answer: When following a large truck, bus, or trailer
Add space when following big vehicles, on slippery roads, at night, in bad weather, and behind motorcycles.
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Every Kentucky question is written from the official Kentucky driver handbook and checked against its current edition. DMV Test Free is a free, independent study resource — not affiliated with any DMV or government agency. About DMV Test Free