Nevada DMV Permit Practice Test 45
- Questions25
- Correct to pass20
- Passing score80%
- Minimum age15 years 6 months
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1. A reduced speed limit posted with this sign and a plaque giving hours is in force
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Answer C: during the hours shown on the plaque, or while the beacon is flashing
A school speed limit applies during the periods stated on the plaque or while the attached beacon flashes, and the regular limit governs outside those periods.
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2. A large panel mounted on a trailer at the roadside displays a flashing arrow pointing left. What does it tell you?
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Answer B: Move into the lane to your left
An arrow panel directs traffic out of a closed lane, so the arrow shows the direction you must move rather than the shape of the road ahead.
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3. You have to leave a trailer parked on a slope. What extra step protects it?
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Answer D: Chock the trailer wheels as well as setting the brake
Chocks physically block the wheels, which is the only thing that still holds if a brake or a coupling lets go.
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4. The trailer you are towing begins to sway from side to side at highway speed. What should you do?
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Answer D: Ease off the accelerator, hold the wheel steady and let the speed drop
Sway grows with speed and with sudden inputs. Reducing speed gently while keeping the steering steady lets the trailer settle behind you.
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5. What is threshold braking?
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Answer C: Braking hard but staying just short of locking the wheels
A rolling tire grips better than a sliding one, so the shortest stop comes from pressure held just below the point where the wheels lock.
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6. You have passed a large truck and want to move back into its lane. What should you see first?
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Answer B: Both of its headlights in your rear-view mirror
Seeing both headlights in your mirror means you are far enough ahead to be out of the truck's front no-zone before you move over.
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7. A disabled vehicle is blocking your lane on a two-lane road with a single solid yellow line on your side. What should you do?
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Answer C: Wait until the oncoming lane is clear, then go around carefully
The solid line prohibits overtaking a moving vehicle, but in most states a driver may go around an obstruction such as a disabled vehicle once the oncoming lane is clear and the move can be made safely.
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8. About how far behind a tractor-trailer does the driver's rear blind spot reach?
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Answer C: Around 30 feet
The area behind a large truck is hidden for roughly 30 feet, so a driver tucked in there cannot be seen at all.
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9. You are approaching a traffic light that has been green for a long time. How should you treat it?
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Answer C: Expect it to change and be ready to stop
A light that has been green for a while is called a stale green light. Cover the brake and decide in advance where you could still stop safely.
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10. The lane you are in has a right-turn-only arrow painted on the pavement. What must you do?
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Answer C: Turn right, because a lane-use arrow is a legal requirement
Lane-use arrows painted on the pavement are regulatory markings, so a driver in that lane must travel in the direction shown.
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11. A motorcycle ahead of you is weaving slightly as it crosses a stretch of grooved pavement. What should you do?
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Answer D: Give the rider extra room until the surface improves
Grooves, metal plates and loose material affect a motorcycle far more than a car, so back off and let the rider deal with the surface.
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12. What is sensible when you drive in an unfamiliar town for the first time?
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Answer C: Drive a little slower and give yourself more time to read the signs
In unfamiliar surroundings you need longer to take in signs, junctions and markings, and lower speed buys that time.
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13. Which sign shape is reserved for one message only, the requirement to stop?
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Answer A: The octagon
The octagon is used for the stop sign and for no other message, so the outline alone identifies the requirement even when the legend is hard to read.
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14. A Nevada school zone uses flashing yellow lights, and the lights are switched off while classes are in session. Which limit applies then?
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Answer B: The limit posted for non-school hours
Where flashing yellow lights show when a Nevada school zone limit is in force, switching them off during class hours returns the road to the limit posted for non-school hours.
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15. You are passing a line of slow traffic in the lane beside you and you notice a gap in that line ahead. What should you expect?
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Answer A: A vehicle may pull out of that gap into your lane
A gap in a slow line is an invitation to any driver waiting to turn out of a side street or to change lanes, and they are looking at the gap rather than at you.
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16. Your vehicle has daytime running lights. Why should you still switch on the headlights at dusk?
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Answer B: Daytime running lights usually do not light the tail lights, so you are hard to see from behind
On many vehicles the daytime running lights illuminate only the front. Without the headlight switch on, the rear of the vehicle stays dark and the dash may still look lit.
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17. What happens when alcohol is combined with another drug that also affects the nervous system?
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Answer B: Impairment is often far greater than either one alone would produce
Combined substances can multiply each other's effects, producing impairment well beyond what a driver would expect from either one taken separately.
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18. On a long uphill grade a second lane opens on the right and a sign directs slower traffic into it. You are towing a trailer and holding up a line of vehicles. What should you do?
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Answer A: Move into the right-hand lane and let the faster traffic use the left lane
A climbing lane exists so that slow vehicles can be passed safely, and the slower vehicle is the one that belongs in it.
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19. A driver reaches this sign and the intersecting roadway is completely clear. What is required?
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Answer D: Slowing to a speed that allows stopping, then going on without stopping if the way stays clear
This control asks the driver to slow down and be ready to stop, and a full stop becomes necessary only when traffic or pedestrians would otherwise be interfered with.
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20. A crash happens directly in front of you and vehicles are blocking both lanes. What should you do?
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Answer B: Stop at a safe distance, put on the hazards and warn the traffic behind
The greatest danger after a crash is a second collision, so stop short of it and make sure the traffic behind you can see the problem.
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21. At a freeway exit ramp, this sign normally backs up which other regulatory sign posted nearer to the ramp terminal?
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Answer D: The sign that forbids entering that roadway at all
The two work as a pair at ramp terminals: one keeps drivers from turning in, and this one sits farther along to catch a driver who has already entered.
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22. What will the driver have to do at the point this sign refers to?
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Answer C: Slow down and let conflicting traffic go first, stopping if that is what it takes
Further along, the driver has to let conflicting traffic and pedestrians go first, reducing speed and stopping whenever that is necessary to avoid interfering with them.
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23. You have stopped on the shoulder of a busy freeway with a flat tire that you cannot change safely. Where should you and your passengers wait?
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Answer A: Well away from the traffic side, behind a barrier or up the bank if there is one
People struck on the shoulder are a common cause of roadside deaths, so wait away from the traffic side and behind any barrier.
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24. The driver ahead of you is straddling the lane line and is not signaling. How should you respond?
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Answer B: Stay back until you can see which lane that driver will take
A vehicle astride the line could move either way, so the only safe place is behind it where both possibilities are still covered.
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25. A barricade carries a sign reading ROAD CLOSED TO THROUGH TRAFFIC. What does it permit?
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Answer B: Local access for people whose destination is on that road
This closure keeps out drivers who are only passing through while still allowing residents and deliveries to reach addresses within the closed section.