Lesson 5 of 30 · New York DMV Written Test · Free

Drive Wisely: Matching Speed to Road Conditions

Adjust speed for traffic, visibility, and grip to keep stopping distances safe.

Drive Wisely: Matching Speed to Road Conditions: practice questions and answers

These are the 22 quiz questions from this lesson for the New York DMV Written Test, with the correct answers and explanations. Try the quiz above first, then open a question to check yourself.

1

When bad weather reduces visibility, you should:
  1. Increase the space between you and the vehicle ahead ✓ Correct
  2. Accelerate to leave the roadway faster
  3. Travel in the lane nearest to oncoming vehicles
  4. Turn on hazard lights and maintain current speed

Correct answer: A. Increase the space between you and the vehicle ahead

Because your visibility is limited and the road surface is likely slippery, you need a much larger "safety cushion"; increasing your following distance gives you the extra time required to react if the car ahead brakes suddenly.

2

In fog or smoke, you should:
  1. Keep a two-second gap at posted speed
  2. Increase following distance and reduce speed ✓ Correct
  3. Use high beams and keep the same following distance
  4. Stay in the lane nearest to oncoming traffic

Correct answer: B. Increase following distance and reduce speed

As visibility drops, your ability to see and react to hazards ahead decreases. Increasing your following gap and reducing your speed gives you the extra time and space needed to respond safely to whatever appears out of the fog.

3

On a 65 mph freeway where traffic moves at 70 mph, your legal maximum speed is:
  1. 70 mph to match traffic flow
  2. No faster than 65 mph ✓ Correct
  3. Somewhere between 65 and 70 mph

Correct answer: B. No faster than 65 mph

The posted speed limit is the law. Regardless of how fast others are driving, exceeding 65 mph is a violation.

4

Driving slower than the flow of traffic will most likely:
  1. Improve safety by forcing others to slow down
  2. Impede or block normal traffic flow ✓ Correct
  3. Improve visibility of road signs and exits
  4. Save fuel and reduce vehicle wear

Correct answer: B. Impede or block normal traffic flow

Driving significantly slower than the surrounding cars makes you a "moving roadblock"; this disrupts the natural flow, frustrates other drivers, and often leads to dangerous "weaving" and aggressive passing maneuvers by those behind you.

5

NEVs and LSVs are banned from freeways because they:
  1. Don't use gasoline
  2. Aren't registered
  3. Can't keep up with traffic ✓ Correct
  4. Are too small for truck drivers to see

Correct answer: C. Can't keep up with traffic

With a maximum speed of 25 mph, these vehicles simply cannot safely share a road where traffic moves at 65 mph or faster. The speed difference alone creates a serious collision risk for everyone.

6

When passing a row of parked vehicles, you should:
  1. Speed up to pass quickly and minimize time in the danger zone
  2. Be ready for a person or vehicle to suddenly enter your lane ✓ Correct
  3. Assume all drivers and pedestrians will yield to you
  4. Honk continuously to alert anyone behind the parked cars

Correct answer: B. Be ready for a person or vehicle to suddenly enter your lane

Parked cars act as a visual screen for "hidden hazards." By staying alert and keeping a foot near the brake, you are prepared for the most common dangers: a car pulling out of a space or a pedestrian stepping out from between the vehicles.

7

When your view of the road is partially blocked, you should:
  1. Maintain speed if you know the road well
  2. Always slow down ✓ Correct
  3. Follow the vehicle ahead closely to guide you
  4. Only worry about visibility at night or in bad weather

Correct answer: B. Always slow down

Any time your view is partially obstructed, whether by a curve, a hill, a large vehicle, or poor weather, slowing down gives you the extra time and space to react to whatever might be hidden from view.

8

Why can speed limits be reduced up to 15 mph in school zones?
  1. To reduce traffic congestion
  2. To avoid confusion at intersections
  3. To give drivers more time to react ✓ Correct
  4. To make it easier for police to issue tickets

Correct answer: C. To give drivers more time to react

Kids are small and unpredictable. Reducing speed significantly gives you those extra seconds to slam on the brakes if someone suddenly darts into the road.

9

A typical passenger car traveling at 50 mph needs approximately how far to stop:
  1. About 30 feet
  2. About 60 feet
  3. About 120 feet ✓ Correct

Correct answer: C. About 120 feet

On dry pavement, a sedan needs roughly 120 feet for the brakes to stop the wheels. Note that when perception and reaction time are added, the total stopping distance exceeds 200 feet.

10

Why is it important to reduce your speed when driving in rain, snow, or icy conditions?
  1. Because braking distances are longer and the road surface becomes more slippery ✓ Correct
  2. Because windshield wipers work better at lower speeds
  3. So your headlights don’t reflect off the rain or snow
  4. Because other drivers might expect you to stop more often in bad weather

Correct answer: A. Because braking distances are longer and the road surface becomes more slippery

Wet, snowy, and icy surfaces dramatically reduce tire grip, which means your vehicle takes significantly longer to stop. Reducing speed gives you the extra time and distance needed to react and brake safely in conditions where traction is compromised.

11

At what point during a rainfall are roads slippery on a hot day?
  1. Immediately after it has stopped raining
  2. For the first several minutes ✓ Correct
  3. When it has been raining for a few hours
  4. Only once the sun dries the road

Correct answer: B. For the first several minutes

On a hot day, oil, dust, and debris accumulate on the road surface. When rain first falls, it mixes with all of that to create an incredibly slick layer. After a few minutes the rain washes it away and grip gradually improves.

12

Which of the following road conditions results in the longest braking distance?
  1. Wet pavement
  2. Snowy road
  3. Icy road ✓ Correct
  4. Loose gravel road

Correct answer: C. Icy road

Ice is the most dangerous surface of all. It offers almost no friction between the tires and the road, resulting in the longest braking distances of any common road condition. Even at low speeds stopping on ice can take many times the distance required on dry pavement.

13

Which of the following statements about speed adjustments on different road conditions is incorrect?
  1. Reduce your speed by 5 to 10 mph on wet roads
  2. Halve your speed on roads covered with packed snow
  3. Maintain the same speed regardless of road conditions ✓ Correct
  4. Slow down to a crawl on icy roads

Correct answer: C. Maintain the same speed regardless of road conditions

Maintaining the same speed regardless of road conditions directly violates the Basic Speed Law and is one of the most dangerous things a driver can do. Every change in road surface requires a corresponding adjustment in speed.

14

Crashes are more likely to occur when:
  1. All vehicles are traveling at about the same speed
  2. One lane of traffic is traveling faster than the other lanes
  3. One vehicle is traveling faster or slower than the flow of traffic ✓ Correct
  4. Traffic density is high and vehicles are close together

Correct answer: C. One vehicle is traveling faster or slower than the flow of traffic

A single vehicle moving significantly faster or slower than surrounding traffic creates unpredictable speed differentials that force other drivers to react suddenly, dramatically increasing the risk of a collision.

15

On wet or icy roads, you should:
  1. Pump brakes to test the surface
  2. Slow down ✓ Correct
  3. Keep to the posted speed limit
  4. Maintain speed if you have all-wheel drive

Correct answer: B. Slow down

Wet and icy surfaces dramatically reduce traction and increase stopping distances. Slowing down is the most effective way to stay in control and give yourself enough space to react safely.

16

On slippery roads, you should:
  1. Brake hard to prevent sliding
  2. Maintain speed to keep the vehicle stable
  3. Increase your following distance ✓ Correct
  4. Shift to a lower gear and keep your usual following distance

Correct answer: C. Increase your following distance

Slippery roads mean longer stopping distances, so increasing your following distance gives you the extra space needed to brake gently and gradually without losing control.

17

This sign means:
Illustration for: This sign means:
  1. School zone ahead ✓ Correct
  2. Pedestrian crossing ahead
  3. Playground zone ahead
  4. Two women returning from a shopping trip

Correct answer: A. School zone ahead

The pentagon shape, yellow color, and two figures walking together identify this as a school zone warning sign. It alerts drivers to slow down and watch carefully for children crossing the road.

18

This sign means:
Illustration for: This sign means:
  1. Pedestrians only
  2. Intersection ahead
  3. Hiking trails ahead
  4. School crossing ahead ✓ Correct

Correct answer: D. School crossing ahead

This pentagon-shaped sign is very similar to a school zone sign. However, notice the lines painted under the people in the image; these indicate the actual location of the school crossing.

19

When passing a pedestrian on the roadway with oncoming traffic, you should:
  1. Keep speed and assume the oncoming driver will yield
  2. Honk to force the pedestrian aside
  3. Slow down and wait for oncoming traffic to pass first ✓ Correct
  4. Straddle the center line to give the pedestrian space

Correct answer: C. Slow down and wait for oncoming traffic to pass first

By slowing down and letting the oncoming vehicle pass, you create the space needed to move over and give the pedestrian a wide berth. This "separates the hazards" so you handle each one individually.

20

Braking distance is influenced by:
  1. The condition of the roadway surface
  2. How fast you’re driving
  3. The condition of your brakes and tires
  4. All of the above ✓ Correct

Correct answer: D. All of the above

Your total braking distance is a combination of your speed, the friction provided by the road, and the mechanical ability of your tires and brakes to grip that surface. If any one of these factors is poor, your stopping distance will increase dangerously.

21

A safe speed to drive your car:
  1. Is the posted speed limit
  2. Is less than the posted speed limit
  3. Depends on the weather and road conditions ✓ Correct
  4. Depends on the mechanical skill of the driver

Correct answer: C. Depends on the weather and road conditions

The "Basic Speed Law" states that you may never drive faster than is safe for current conditions, regardless of the posted limit. You must slow down for heavy rain, fog, snow, dark roads, or heavy traffic.

22

Why are minimum speed limit signs posted on freeways?
  1. To allow drivers to travel at any speed below the maximum limit
  2. To encourage drivers to exceed the posted speed limit
  3. To keep traffic flowing smoothly and safely ✓ Correct
  4. To give priority to slow-moving vehicles

Correct answer: C. To keep traffic flowing smoothly and safely

Minimum speed limits reduce the need for constant passing and lane-weaving. By keeping everyone within a specific "speed window," traffic remains predictable, merging is easier, and the risk of rear-end collisions is significantly lowered.

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