Missouri DOR Permit Practice Test 30
- Questions25
- Correct to pass20
- Passing score80%
- Minimum age15 years
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1. On traffic control devices, the color green shows direction to a destination and also shows
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Answer C: that a movement is permitted
Green carries two assignments: guidance toward destinations, and the idea that the movement shown is allowed, as on a green arrow.
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2. You are overtaking in a short passing lane on a two-lane road and it is about to end. What must you do?
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Answer A: Finish the pass and move back to the right before it ends
The added lane ends and the traffic returns to a single lane in each direction, so the pass has to be complete before the pavement runs out.
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3. Your green left-turn arrow goes out and a steady green ball stays lit. What may you do?
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Answer A: Continue turning left, but only after yielding to oncoming traffic
When the arrow ends and a green ball remains, the turn changes from protected to permissive, so it is still allowed but oncoming traffic goes first.
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4. Your navigation device tells you to turn where a road sign says the turn is closed. What should you do?
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Answer B: Follow the signs and what you can see
A device works from stored data that can be out of date, while signs and the road in front of you show the situation now, so the road wins every time.
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5. After an hour on a hot highway your tire pressure reads higher than it did in the morning. What should you do?
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Answer D: Nothing, because pressure rises when tires heat up
Air expands as the tire warms, so a hot reading is normally above the cold setting. Bleeding air off would leave the tire underinflated once it cooled.
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6. 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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7. Your left-turn lane faces a steady green ball and oncoming traffic is heavy. What are you allowed to do?
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Answer C: Move into the intersection and turn when a safe gap appears
A green ball permits the turn but gives no priority, so you may move into the intersection and wait there for a gap in the oncoming traffic.
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8. Two roads come together at a shallow angle under a MERGE sign, with no yield line on either one. What is expected of you?
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Answer D: Adjust your speed and position so you blend smoothly into the other traffic
A merge means neither road ends at a stop; drivers adjust speed and position so that the two streams fit together without stopping.
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9. A steady green downward arrow is displayed above the lane you are in. What does it tell you?
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Answer A: You may drive in that lane
A green downward arrow means the lane beneath it is open for travel in your direction.
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10. How should a driver respond to this sign?
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Answer C: Slow down before reaching the rough spot and cross it at a steady, low speed
Losing speed before a sharp rise in the pavement keeps the vehicle settled, while braking or accelerating on top of it unsettles the suspension and costs grip.
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11. What licensing consequence follows a third Missouri conviction for driving while intoxicated?
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Answer D: A ten-year license denial
A third or subsequent DWI or BAC conviction in Missouri results in a ten-year license denial.
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12. What does a blood alcohol concentration of 0.08 mean for the driver of a car?
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Answer B: It is the level almost every state treats as legally intoxicated
In almost every state a driver at 0.08 or above is legally intoxicated whatever the driver seems like, but impairment starts well before that level is reached.
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13. You are waiting in a left-turn lane at a green light when a fire engine with lights and siren comes toward you in the oncoming lanes. What should you do?
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Answer D: Hold your position and let the fire engine pass
Turning across the path of an approaching emergency vehicle is exactly what you must not do; stay put until it has gone by.
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14. You must slow suddenly on a highway and a vehicle is following close behind you. What helps prevent a rear-end collision?
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Answer D: Tapping the brake pedal early so your brake lights flash a warning
Early brake light flashes give the driver behind more time to react, and slowing gradually instead of suddenly reduces the chance of being struck.
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15. Missouri's seat belt law covers the operator and front seat occupants, but which drivers must make sure every passenger is restrained?
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Answer A: Holders of an intermediate driver license
Missouri requires all passengers accompanying an intermediate license holder to be properly restrained, a stricter rule than the general front seat requirement.
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16. You are backing straight down a driveway while looking over your right shoulder. Where should your left hand be?
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Answer C: At the top of the steering wheel, holding it with a firm grip
With one hand at the top of the wheel you can hold a straight course and make small corrections while your body is turned to look behind.
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17. A Missouri hands-free violation causes property damage of more than $5,000. How is it graded?
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Answer B: A class D misdemeanor
Property damage exceeding $5,000 caused by a hands-free violation is a class D misdemeanor in Missouri.
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18. At an intersection where turning on a red arrow is not permitted, the signal shows a red left arrow next to a steady green ball. What may you do?
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Answer D: Go straight or turn right if permitted, but not left
An arrow controls only the movement it points to, so here the red arrow stops the left turn while the green ball still allows the other movements.
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19. What is the main function of the guide sign series?
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Answer D: To identify routes and lead road users to their destinations
Guide signs identify routes, name destinations and give distances, so drivers can navigate without stopping to consult a map.
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20. You notice at night that one of your headlights has burned out. What should you do?
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Answer B: Get it replaced promptly, because other drivers may take you for a motorcycle
A single light makes your vehicle look narrower and further away, so other drivers misjudge you, and one light is also illegal.
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21. You back into an unattended parked car in a lot and cause visible damage. What must you do?
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Answer A: Try to find the owner, or leave a note with your name and contact details, and report the crash
Hitting an unattended vehicle carries the same duties as any crash. Leaving without identifying yourself is a hit-and-run offense.
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22. You are towing a trailer and turning right at an intersection. What must you allow for?
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Answer D: The trailer cuts the corner, so swing wider than usual
A trailer follows a shorter path than the towing vehicle, so its wheels track inside your line and can mount the curb unless you take the turn wide.
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23. Is it acceptable to drive with your vehicle straddling the line between two lanes?
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Answer D: No, you must drive as nearly as practical entirely within a single lane
A vehicle astride the line takes up two lanes and leaves the drivers around it unable to predict where it will go.
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24. On a busy multilane highway, where is the best place to travel?
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Answer B: In a gap in the traffic, with space open on both sides
Travelling in a gap keeps escape routes open on both sides, while riding alongside other vehicles removes the room you would need to swerve.
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25. You are about to pass a bicyclist on a narrow two-lane road. What is the correct way to do it?
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Answer A: Wait for a clear gap and move well left, giving the rider wide space
Pass a cyclist as you would a car: wait for clear road, change lane position to leave generous clearance, and return only when the rider is well behind you.