Oklahoma SOK Permit Practice Test 15
- Questions20
- Correct to pass15
- Passing score75%
- Minimum age15 years
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1. How should the inside rearview mirror be adjusted?
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Answer B: So you can see the entire rear window without moving your head
The inside mirror is for the view straight behind you. Framing the whole rear window from your normal seating position gives the widest useful view.
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2. Your right-turn lane shows a green arrow while the through lanes face a red ball. What does that mean?
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Answer C: Only the right turn is allowed, and it is protected while the arrow lasts
A green arrow gives a protected movement in that direction only; the red ball still stops the through traffic in the other lanes.
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3. You have fitted small convex blind spot mirrors to the door mirrors. What is true of them?
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Answer A: They help a good deal, but you should still look over your shoulder as well
Add-on mirrors reduce but do not remove the blind spot, and they make vehicles look smaller and further away.
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4. How should a long trip be broken up to keep the driver alert?
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Answer D: Stop for a break every couple of hours and share out the driving
Regular breaks and a change of driver are the only reliable answers to fatigue; caffeine only postpones it.
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5. Is dictating a message by voice a safe alternative to typing one?
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Answer C: No, it still takes attention from driving
Composing and checking a spoken message loads the mind and usually pulls the eyes to the screen anyway, so research finds it no safer than other phone use.
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6. Why should cruise control be switched off on wet, snowy or icy roads?
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Answer B: It may keep feeding power to a wheel that has started to slip, and cancelling it costs you time
Cruise control holds a set speed regardless of grip, so it can add power just as a tire loses traction, and the extra step of cancelling it delays your response.
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7. Unless otherwise posted, what is Oklahoma's default maximum speed limit on a highway within a state park or wildlife refuge?
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Answer C: 35 mph
Oklahoma sets a default maximum of 35 mph on a highway within a state park or wildlife refuge, well below the default for county roads.
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8. A yellow diamond shows the two edges of the road pinching toward each other. What does it mean?
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Answer B: The pavement gets narrower but the lanes continue
The road narrows sign warns that the traveled way becomes tighter, leaving less room beside passing vehicles even though no lane is dropped.
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9. You reach an intersection with no signs, signals or markings clearly before a vehicle that is approaching on your right. What is the rule?
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Answer B: You may go first because you got there first
At an uncontrolled intersection the first driver to arrive goes first; the yield to the right rule only settles a tie.
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10. Why does a heavier vehicle need more room to stop than a light one from the same speed?
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Answer B: Because there is more mass in motion for the tires to slow down
More mass means more energy at the same speed, and the brakes and tires need more distance to get rid of it.
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11. The red brake warning light stays on after you release the parking brake. What should you do?
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Answer D: Stop safely and have the brakes checked before driving on
With the parking brake released, that light points to low fluid or a fault in one half of the braking system, which can leave you with very little braking.
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12. A pedestrian signal changes to a flashing upraised hand. What does that indication mean?
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Answer C: Do not start crossing, but finish a crossing already begun
The flashing upraised hand is the pedestrian change interval: nobody may start to cross, but a pedestrian already in the crosswalk may continue to the far side or to a median.
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13. What does the solid white line running along the right side of a highway mark?
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Answer A: The right edge of the traveled way
A solid white edge line shows where the traveled way ends on the right, which is particularly useful at night and in poor visibility.
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14. 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?
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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.
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15. A driver leaves the vehicle at the curb where this sign is posted and walks away for two minutes. Is that allowed?
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Answer B: No, leaving the vehicle unattended there is prohibited whatever the length of the absence
Walking away leaves the vehicle parked, and the prohibition holds regardless of how long the driver is gone or whether the engine is left running.
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16. On loose gravel or deep fresh snow, how does an antilock system affect the stopping distance?
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Answer D: It can lengthen it, although you keep the ability to steer
On loose surfaces a locked wheel piles up a wedge of gravel or snow that helps it stop, so the antilock stop can be longer even though steering still works.
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17. A sign on a divided highway reads Keep Right Except to Pass. What does it require of you?
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Answer A: Use the left lane only to overtake, then return to a lane on the right
The left lane on such a highway is reserved for overtaking, so a driver who has finished a pass must move back to the right.
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18. Your light turns green while a pedestrian who started on the walk signal is still crossing in front of you. What must you do?
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Answer D: Let them finish crossing the road before you move off on your green light
A pedestrian who entered the crosswalk lawfully keeps the right of way until they reach the other side, whatever the signal now shows.
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19. Why are drivers required to turn the front wheels when parking on a grade?
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Answer A: So that a vehicle that starts to roll leaves the traffic lanes instead of entering them
The wheel position is a last line of defense if the parking brake or transmission fails, directing the vehicle into the curb or off the roadway.
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20. What is the recommended minimum distance between the driver's breastbone and the center of the steering wheel air bag cover?
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Answer C: About 10 inches
An air bag inflates extremely fast, and keeping that much space lets it deploy fully before it reaches the driver, which is why the seat should be moved back as far as still allows comfortable control of the pedals.