Missouri DOR Permit Practice Test 34
- Questions25
- Correct to pass20
- Passing score80%
- Minimum age15 years
-
1. When may a driver of a motor vehicle use a marked bicycle lane?
Show answer
Answer C: Only to cross it when turning or entering the road where the markings allow
A bike lane is a lane for cyclists. Motor vehicles may only cross it to enter or leave the road or to make a turn where the markings permit.
-
2. Which practice matches current child passenger safety guidance?
Show answer
Answer D: Keep a child rear facing until the top height or weight limit of the seat is reached
A rear facing seat spreads crash forces across the child's whole back, so it should be used as long as the seat allows, and never in front of an active passenger air bag.
-
3. Before making a right turn at an intersection, what should you check besides oncoming traffic?
Show answer
Answer B: Your right blind spot and the crosswalk, for cyclists and pedestrians
Right turns often catch a cyclist or a pedestrian coming up on the right, so check the blind spot and the crosswalk before you turn.
-
4. What is the right speed for a normal right turn at a city corner?
Show answer
Answer C: Slow enough to hold your lane and stop for a pedestrian
A city right turn is tight and crosses a crosswalk, so the correct speed is one that keeps you inside your lane and still allows a stop.
-
5. Where is a road work ahead sign placed?
Show answer
Answer B: In advance of the work space or detour, so drivers are warned before reaching it
Advance warning signs are placed upstream of the work space or detour so that drivers have time to slow down and change lanes before reaching the activity.
-
6. What should you do about snow and ice on your vehicle before driving?
Show answer
Answer C: Clear all glass, mirrors and lights, and the roof and hood as well
Snow left on the roof or hood slides onto your windshield when you brake and blows into the path of drivers behind you, and covered lights make your vehicle hard to see.
-
7. When is switching traction control off sometimes useful?
Show answer
Answer A: When you need spinning wheels to rock out of deep snow or mud
Rocking a stuck vehicle free needs the wheel spin that the system normally prevents. Switch it back on as soon as you are moving again.
-
8. About how far ahead do low beam headlights let you see on a dark road?
Show answer
Answer B: About 250 feet
Low beams light roughly 250 feet of road, and high beams roughly 350 to 500 feet, which sets the limit on a safe night speed.
-
9. It is dark, it is raining and you are towing a trailer. How should you set your following gap?
Show answer
Answer B: Add extra seconds for each condition, well beyond three
Each factor that lengthens your stopping distance or shortens your view calls for another second or more, and they add up when several occur together.
-
10. A bus stopped at the corner hides the crosswalk you are about to turn across. What should you do?
Show answer
Answer C: Turn slowly, ready to stop for anyone stepping out in front of it
People often step into the road from in front of a stopped bus, so approach the hidden crosswalk slowly and be ready to stop.
-
11. What is wrong with slowing to a crawl at a stop sign and then rolling on through?
Show answer
Answer C: It is not a stop, and you may miss a pedestrian or cross traffic
A rolling stop is a violation and it also cuts short the moment you need in order to look carefully in each direction before entering.
-
12. The brake warning light stays on even though the parking brake is fully released. What does it indicate?
Show answer
Answer B: A possible brake system problem, so have the brakes checked promptly
The brake warning light also signals low brake fluid or a failure in one part of the hydraulic system. Do not ignore it, because braking may be reduced.
-
13. What is the safest way to pass a bicyclist on a road with two lanes going your way?
Show answer
Answer D: Change lanes completely, as you would for a car
A bicycle is entitled to the room a vehicle needs, and moving into the next lane gives the rider space to swerve around a drain or a pothole.
-
14. A snow squall cuts visibility to almost nothing while you are on a highway. What must you not do?
Show answer
Answer D: Stop in a travel lane and wait for the squall to blow through
A vehicle stopped in a lane in a whiteout is invisible until someone hits it. Slow gradually and keep moving until you can leave the roadway completely.
-
15. You are turning right off a street into a parking lot driveway that crosses a bike lane and a sidewalk. Who has the right of way?
Show answer
Answer D: Pedestrians on the sidewalk and riders in the bike lane
Turning into a driveway means crossing the paths of people who were already traveling straight, so you give way to both the bike lane and the sidewalk.
-
16. A vehicle coming toward you has drifted into your lane. What should you do?
Show answer
Answer D: Slow down, sound the horn, flash your lights and steer to the right if possible
Moving right gives the other driver space to recover and keeps you out of the lane they are most likely to return to. Braking reduces the force of any impact.
-
17. Is it safe to check your phone while stopped at a red light?
Show answer
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.
-
18. You are involved in a collision, even a minor one. What is your first legal duty?
Show answer
Answer A: Stop at or near the scene without blocking traffic more than necessary
Every driver involved in a crash must stop at the scene, and leaving before meeting that duty is a serious offense. Move the vehicles only as far as needed to clear the traffic lanes.
-
19. You are following another vehicle down a long, steep grade. What should you do about the gap?
Show answer
Answer D: Make it longer, because both of you need more room to stop
Everything takes longer to stop on a downgrade, including the vehicle ahead, so the gap that works on the flat is no longer enough.
-
20. You decide to turn around using a driveway on your right. What is the safer way to do it?
Show answer
Answer C: Stop past the driveway, reverse into it, then pull out and drive away
Passing the driveway and backing in means you reverse off the roadway and then rejoin traffic facing forward, with a full view of both directions.
-
21. You are about to pass another vehicle at night with your high beams on. What should you do?
Show answer
Answer C: Switch to low beams as you come up behind it and while you are alongside
High beams shining into the mirrors of the vehicle ahead blind the very driver whose reaction you depend on during the pass.
-
22. What is a microsleep?
Show answer
Answer D: A few seconds of sleep, sometimes with the eyes open
A microsleep is an involuntary lapse of a few seconds during which the driver is asleep and the vehicle travels blind, often without the driver knowing.
-
23. What is the maximum fine when a Missouri driver has two prior hands-free convictions within 24 months?
Show answer
Answer C: $500
A third or later violation within 24 months carries a fine of up to $500.
-
24. You want to turn right from a lane marked for through traffic and right turns, and the driver behind you wants to go straight. What should you do?
Show answer
Answer C: Signal, stay in the lane and make the turn when it is safe
A shared lane is the correct place to turn right from, so signal early and turn from the lane; the driver behind must wait or use another lane.
-
25. How does the blood alcohol standard for a driver operating a commercial vehicle compare with the one for a car driver?
Show answer
Answer D: It is lower, set at 0.04
Commercial drivers are held to a stricter standard of 0.04 because of the size of their vehicles and the risk they carry.