Nevada DMV Permit Practice Test 33
- Questions25
- Correct to pass20
- Passing score80%
- Minimum age15 years 6 months
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1. You are driving at night through heavy falling snow. Which headlight setting works better and why?
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Answer C: Low beams, because high beams bounce off the falling flakes back at you
Falling snow reflects light the way fog does, so high beams build a white wall of glare while low beams still give a usable view.
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2. A yellow diamond showing two vertical arrows, one pointing up and one pointing down, warns that
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Answer A: the road ahead carries traffic in both directions
The two-way traffic sign warns that the roadway ahead is not divided and that vehicles will be coming from the opposite direction.
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3. An upward-pointing pentagon with a yellow legend and border on a blue background is used as
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Answer D: a county route marker
The pentagon serves both the school warning series and county route markers, and the blue background with yellow legend identifies the county route version.
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4. What is the safest way to deal with the situation this sign announces?
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Answer B: Match the speed of the other traffic stream and open a gap so vehicles can blend without hard braking
Blending works when speeds are matched and gaps are opened, so nobody has to brake hard or swerve where the two streams come together.
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5. A school bus ahead of you has its red lights flashing and its stop arm extended. What are you required to do?
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Answer A: Stop and stay stopped until the lights stop flashing and the bus starts moving
Flashing red lights and an extended stop arm mean children are getting on or off, so traffic must stop and wait until the bus withdraws the signals and moves again.
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6. You are first in the queue at a red light with a marked crosswalk. Where should your vehicle stop?
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Answer A: Behind the stop line, so that the crosswalk stays clear
Stopping short of the line keeps the crosswalk usable for people on foot and keeps your vehicle out of the path of turning traffic.
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7. You are about to change lanes to the left when you notice a vehicle already overtaking you in that lane. What should you do?
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Answer A: Hold your lane and your speed, and change only after that vehicle has gone by
A signal asks for space but does not create it, and the overtaking driver has nowhere to go if you move across.
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8. Why do young drivers carrying several friends face a higher crash risk?
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Answer D: Because young passengers are a strong source of distraction and pressure
Crash risk for new drivers rises with each extra young passenger, mainly through distraction and social pressure.
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9. Why can an oncoming vehicle that looks comfortably far away leave you far less room than you expect?
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Answer D: You and that vehicle close the gap at the sum of both your speeds
Two vehicles approaching at 55 mph each close the distance between them at about 110 mph, so the gap disappears in half the time you would expect.
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10. How much more energy must your brakes absorb if you double your speed?
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Answer D: About four times as much, since energy rises with the square of speed
Kinetic energy grows with the square of speed, so twice the speed means about four times the energy and a far longer braking distance.
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11. You are in the middle of an intersection when you hear a siren and see an emergency vehicle approaching. What should you do?
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Answer A: Keep going, clear the intersection, then pull to the right and stop
Stopping inside an intersection blocks the emergency vehicle. Clear the intersection first, then pull over to the right and stop.
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12. A sign at the intersection prohibits U-turns, but the opening looks wide and clear. What may you do?
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Answer B: Obey the sign and turn around somewhere else
A prohibition applies whatever the traffic looks like at that moment, usually because of sight distance or conflicts you cannot see from the lane.
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13. When does Nevada law require headlights to be switched on?
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Answer C: Half an hour after sunset to half an hour before sunrise, and below 1,000 feet visibility
Nevada requires headlights from a half hour after sunset until a half hour before sunrise, when there is insufficient light, whenever people or vehicles cannot be seen at 1,000 feet, and when a traffic control device directs it.
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14. What actually lowers the amount of alcohol in a person's blood?
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Answer D: The passage of time
The body eliminates alcohol at its own steady rate, so only time reduces blood alcohol. Coffee or a cold shower may make a person feel more awake while still impaired.
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15. A signal on an entrance ramp changes from red to green and lets one vehicle at a time onto the highway. What should you do?
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Answer A: Stop on the red and go on the green, one vehicle for each green
A ramp meter spaces vehicles out so they join the highway one at a time instead of arriving as a group, and it is a traffic signal like any other.
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16. A pedestrian with a white cane draws the cane back and steps away from the curb as you approach. What does that usually mean?
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Answer B: They are signaling you to go ahead and drive on
Pulling the cane in and stepping back from the curb is the customary way a blind pedestrian tells drivers to proceed.
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17. Small green signs with white numerals posted at regular intervals along a highway are used to
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Answer B: show distance along the route and give a reference point for reporting a location
Reference location signs, commonly called mileposts, carry white numerals on green and let a driver describe exactly where a breakdown or crash has occurred.
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18. When may a Nevada driver use a handheld device to report an emergency?
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Answer D: When stopping the vehicle would be inadvisable, impractical or dangerous
Nevada allows handheld use to report an emergency when stopping the vehicle would be inadvisable, impractical or dangerous.
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19. You are stopped at a red light waiting to turn right where the turn is allowed. Besides traffic from the left, what must you check?
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Answer D: Both crosswalks, and anyone approaching along your right side
A right turn on red crosses the crosswalk in front of you and enters the one on the cross street, and cyclists often approach along your right.
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20. Your vehicle leaves the road and enters deep water. What gives you the best chance of escape?
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Answer B: Release your seat belt and get out through a window as quickly as possible
Water pressure holds the doors shut, so a window is the reliable exit and the first seconds after entry are the best time to use it.
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21. Trees block the view along the tracks as a driver approaches this sign. What approach speed is correct?
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Answer B: Slow enough to stop before the nearest rail once a train comes into view
Where the view along the track is obstructed, the only safe speed is one that still leaves stopping distance after a train first becomes visible.
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22. A yellow diamond on an exit ramp shows a truck tipping over onto two wheels. Which drivers does it concern most?
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Answer D: Those in tall vehicles carrying a high load
The truck rollover sign warns that the curve can overturn a vehicle with a high center of gravity, so such drivers must slow well below the normal ramp speed.
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23. How does a wet road change the distance you need to stop?
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Answer C: It lengthens it, so you need a much bigger gap ahead
Water between the tire and the road cuts grip, so braking distance grows and the gap that works on dry pavement is no longer enough.
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24. Why is wearing headphones over both ears a problem while driving?
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Answer D: You may not hear horns, sirens or other warning sounds
Hearing is part of your awareness of traffic. Covering both ears blocks emergency sirens, horns and the sound of an approaching vehicle you cannot yet see.
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25. At what tread depth should a tire be replaced?
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Answer A: When the tread is worn down to 2/32 of an inch
At that depth a tire loses grip quickly, especially on wet roads, and the built in wear bars or the penny test both show when the point has been reached.