New Hampshire NH DMV Permit Practice Test 17
- Questions40
- Correct to pass32
- Passing score80%
- Minimum age16 years
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1. Two solid white lines are painted between your lane and the lane beside it. What do they mean?
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Answer D: Crossing from one lane to the other is prohibited
Double solid white lines separate lanes of traffic going the same way and may not be crossed.
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2. A sign at the start of an exit ramp shows a speed much lower than the highway limit. What does it apply to?
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Answer C: The curve of the ramp itself, once you have left the highway
The ramp speed is set by the sharpness of the ramp curve, so you slow to it inside the deceleration lane rather than out on the highway.
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3. A rear tire blows out on the highway. How does the vehicle usually behave?
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Answer C: The back end weaves or fishtails from side to side
A rear failure shows up as the tail wandering rather than a pull on the steering, so hold the wheel straight and let the speed drop gradually.
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4. Your wiper blades smear the windshield instead of clearing it. What should you do?
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Answer C: Replace the blades, because smearing means that the rubber is worn
Worn or hardened rubber cannot wipe cleanly, and blades are cheap compared with driving without a clear view.
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5. The street you are turning right onto has a bike lane along its right edge. Where should your vehicle end up?
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Answer B: In the first traffic lane to the left of the bike lane
A bike lane is not a travel lane for motor vehicles, so the nearest lane you may finish a right turn in is the first general traffic lane beside it.
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6. On which approach is this sign normally installed?
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Answer C: On the road that ends, far enough ahead for the driver to slow down
The warning belongs on the approach that terminates, placed early enough that the driver can lose speed and choose a direction before reaching the junction.
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7. Alcohol is classified as which kind of drug?
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Answer B: A depressant that slows the central nervous system
As a depressant, alcohol slows the brain and nervous system, which lengthens reaction time and dulls the coordination that driving depends on.
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8. A SHOULDER DROP OFF sign warns that
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Answer B: there is a step down from the pavement to the shoulder
The sign is used where the edge of the pavement stands several inches above the shoulder, which can grab a wheel and pull the vehicle sideways.
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9. Why should you set the parking brake even when an automatic transmission is in Park?
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Answer B: Because it takes the strain off the transmission and holds the vehicle
The parking pawl is a small part carrying the whole vehicle; the parking brake shares that load and holds the vehicle if the pawl fails.
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10. A steady downward green arrow is displayed over a lane. What does it indicate?
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Answer C: The lane is open to traffic in your direction
A steady downward green arrow means the lane it points to is open to traffic traveling in your direction.
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11. A school sign paired with a plaque showing a diagonal downward-pointing arrow is installed
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Answer D: at the school crossing itself, or as close to it as possible
The diagonal downward arrow points at the crossing, so this assembly is placed at the crossing location rather than in advance of it.
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12. Compared with dry pavement, how much room does a vehicle need to stop on packed snow?
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Answer D: Several times as much
Grip on packed snow is a fraction of that on dry pavement, so stopping distance grows several times over. Antilock brakes help you steer, not stop shorter.
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13. A separate right-turn lane leads onto the cross street and carries a yield sign. What does it require?
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Answer D: Slowing and giving way to traffic and people, stopping if needed
A yield requires you to slow, give way to traffic in the lane you are joining and to pedestrians, and stop only if that is what safety demands.
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14. You enter a work zone at night where one lane is closed and a flagger is on duty. What is the safest approach?
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Answer A: Slow early, merge before the closure and be ready to stop
Merging early at a reduced speed keeps the queue orderly and leaves you room to stop for equipment, workers or traffic that has halted ahead.
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15. You are approaching the crest of a hill and cannot see the road beyond it. What should you do?
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Answer C: Slow down and keep well to the right
Beyond a blind crest there may be a stopped vehicle, a cyclist or an oncoming driver crossing the center line, so reduce speed and hold your own side.
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16. A left-turn bay opens ahead of the intersection with a solid white line beside it. Where should you enter the bay?
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Answer C: At the opening before the solid line begins
The solid line marks where lane changes are no longer intended, so you move into the turn bay at its opening rather than cutting across the line later.
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17. Heavy trucks have worn deep ruts into a highway lane and rain has filled them. What is the danger?
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Answer D: Water collects in them, so the tires can lose contact with the road
Ruts hold standing water long after the rest of the lane has drained, which makes them the most likely place to start hydroplaning.
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18. Why does a long downhill grade lengthen the distance you need to stop?
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Answer C: Because gravity keeps pulling the vehicle forward as you brake
On a downgrade gravity works with the vehicle and against the brakes, so the same speed needs noticeably more distance than it would on level ground.
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19. At highway speed, a large object suddenly appears in your lane and there is open space beside you. Which response is often the most effective?
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Answer B: Steer around it, since at speed you can often turn quicker than you can stop
Above roughly 25 mph, stopping distance is long while a lane change takes only a moment. When space is available, a controlled steer around the hazard avoids the impact.
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20. What do white lane lines painted between travel lanes indicate?
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Answer A: Traffic in the adjacent lane moves in the same direction as you
White markings separate lanes carrying traffic in the same direction and mark the right edge of the roadway.
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21. Which of these makes you unpredictable to other drivers?
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Answer B: Changing lanes suddenly without signaling, to save a moment
An unsignalled, sudden lane change gives nobody time to react and is a common cause of sideswipe collisions.
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22. Which part of the space around your vehicle can you control best?
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Answer A: The space ahead of you
You choose your own following distance, so the gap in front is the space you truly control and the one that gives you time to react.
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23. Once a driver has joined the route this sign begins, how is the rest of the way marked?
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Answer B: By further markers of the same kind at each turn, until the original road is rejoined
The alternate route is signed continuously, with a marker at every turn, so a driver with no local knowledge can follow it back to the original road.
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24. You are driving along a street lined with parked cars. What should you watch for?
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Answer B: Doors opening, vehicles pulling out and pedestrians stepping from between cars
Parked cars hide people and can move without warning. Keep as much space from them as you safely can and cover the brake.
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25. You reach the end of the acceleration lane and there is still no gap in the traffic. What should you do?
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Answer B: Slow down and merge behind the traffic rather than forcing your way in
Merging behind the traffic costs you only a little speed, while forcing into a space that is not there puts you alongside a vehicle with nowhere to go.
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26. What does a posted speed limit sign represent?
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Answer B: The maximum speed permitted under ideal conditions
A speed limit is an upper limit that assumes good weather, good visibility and light traffic, so the safe speed is often lower than the posted figure.
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27. An overhead lane-use control signal shows a steady red X above your lane. What does it mean?
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Answer B: You may not use that lane and must move out of it
A steady red X means the lane below it is closed to you, while a steady yellow X is the warning to prepare to vacate the lane and a downward green arrow means the lane is open.
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28. You are crossing a divided highway with a wide median. How should you treat the two roadways?
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Answer D: As two intersections, waiting in the median only when your vehicle fits
Each roadway of a divided highway is a separate intersection, and you should wait in the median only if it is long enough to hold your vehicle clear of both roadways.
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29. How does higher speed affect the outcome of a crash?
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Answer A: It leaves less time to react and greatly increases the force of impact
Speed shortens the time available to avoid a hazard and raises the energy released in an impact, so both the likelihood and the severity of a crash increase.
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30. You are backing out of a driveway that crosses a public sidewalk. What should you do?
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Answer C: Stop before the sidewalk and check both ways
Walkers, runners and riders use the sidewalk at speeds that can bring them into your path in a second, so the stop and the look belong before the sidewalk, not after it.
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31. Your vehicle has broken down at night on a rural road and your phone has no signal. What is the safest thing to do?
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Answer C: Stay with the vehicle, keep the hazard lights on and wait for help
A lit vehicle is far easier to find than a person walking in the dark, and running the engine while you sleep risks carbon monoxide.
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32. What is the usual result of driving well above the flow of traffic on a typical trip?
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Answer B: Very little time saved, with much greater risk
Signals, traffic and short distances swallow the theoretical gain, while crash risk and crash severity both climb sharply with speed.
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33. Is it safe to check your phone while stopped at a red light?
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Answer B: No, you may miss the signal change and hazards around you
Attention does not return instantly when the light changes, and emergency vehicles, pedestrians or a rear-end threat can appear while you are stopped. Stay focused on the road.
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34. You are driving on a road covered with a layer of wet fallen leaves. What should you expect?
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Answer B: As little grip as on ice, plus hidden markings and hidden holes
Wet leaves are as slippery as ice and they hide the lane lines and any potholes underneath, so slow well before curves and stops.
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35. A sign reads END SCHOOL ZONE. What does it tell a driver?
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Answer A: The regular limit for that road applies again
An end of restriction sign marks the downstream limit of a special zone, after which the ordinary speed limit for that road governs again.
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36. A yellow diamond showing a bicycle is posted on a rural road. What should a driver expect?
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Answer A: Bicyclists crossing or riding along the roadway there
The bicycle warning sign is used where a bikeway crosses the road or where riders are likely to be in the traffic lanes, so drivers should look carefully and pass wide.
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37. Why do bridges and overpasses deserve extra caution when temperatures are near freezing?
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Answer A: They lose heat from above and below, so they ice over before the surrounding road
A bridge deck is exposed to cold air on both surfaces and has no ground beneath it to hold heat, so ice can form there while the connecting road is still only wet.
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38. A sign warns that the right lane ends ahead, and traffic is still flowing freely. What should you do if you are in that lane?
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Answer C: Signal, adjust your speed and move left in good time before the lane ends
When traffic is moving freely there is room to merge early and smoothly, which avoids the last-second lane change at the closure point.
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39. How should your following distance change in heavy rain?
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Answer D: It should be increased well beyond what you use on dry pavement
Wet pavement lengthens stopping distance and rain cuts visibility at the same time, so a larger gap gives you the extra seconds needed to see a problem and stop for it.
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40. You must stop for a train at a highway-rail crossing. Where should you stop?
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Answer B: Behind the stop line, gate or signal and well clear of the nearest rail
Stop behind the stop line, gate or flashing-light signal and well clear of the nearest rail, because a train overhangs its track by several feet on each side.