Missouri DOR Motorcycle Practice Test 29
- Questions25
- Correct to pass20
- Passing score80%
- Minimum age15 years 182 days
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1. An overhead lane-use control signal shows a steady red X above the lane you are traveling in. What does it require?
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Answer D: Leave that lane, because it is closed to you
A steady red X means road users are not permitted to use the lane beneath it, so you must move into a lane that is open.
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2. The circular sign shape is reserved for which warning?
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Answer C: Advance warning of a highway-rail grade crossing
A round yellow sign with a black X and the letters RR is the grade crossing advance warning sign, and the circular outline is used for no other message.
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3. Your face shield develops a crack across the middle. What should you do?
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Answer D: Replace the shield, because a crack scatters light and can fail
A cracked shield distorts your view, scatters light badly at night and can break apart in an impact, so it should be replaced rather than repaired.
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4. On a clear day with light traffic, a driver stays far below the maximum this sign sets. What can that cause?
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Answer B: Obstruction of the normal flow of traffic, which is prohibited in itself
Driving so slowly that other traffic is impeded is an offense in its own right when nothing about safety, weather or the road calls for it.
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5. What does the T-CLOCS pre-ride inspection routine cover?
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Answer B: Tires and wheels, controls, lights, fluids, chassis and stands
T-CLOCS is a memory aid for a walk around check of tires and wheels, controls, lights and electrics, oil and other fluids, chassis, and side and center stands.
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6. 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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7. What does a shaft final drive need checked before a ride?
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Answer D: The fluid level in the final drive housing, and any sign of leaks
A shaft drive runs in its own oil bath, so the pre-ride check is the fluid level and any leak around the housing seals rather than tension or slack.
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8. Why do many crashes happen on routes the driver knows very well?
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Answer D: Familiar roads let attention slip into routine
When a route is automatic the mind wanders and hazards get missed, which is why a well known road deserves the same attention as a strange one.
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9. Someone appears seriously injured after a crash. What should you generally do?
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Answer C: Call for emergency help and avoid moving the person unless there is an immediate danger such as fire
Moving an injured person can worsen spinal or internal injuries, so summon trained help and leave the person in place unless staying there is more dangerous than moving.
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10. What should a passenger do when the motorcycle leans into a curve?
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Answer A: Lean with the operator, staying directly behind them
A passenger who leans with the operator lets the motorcycle follow its natural line, while leaning against the lean fights the operator's control inputs.
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11. What is the default speed limit in any Missouri city, town or village when no sign is posted?
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Answer B: 25 mph
Missouri sets 25 mph as the speed limit in any city, town or village unless a sign posts a different limit.
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12. Where must the engine cut-off switch be set before the starter button will crank the engine?
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Answer A: In the run position
The cut-off switch sits in the ignition circuit, so the engine will not start or run while it is set to off.
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13. How should space management change with a passenger aboard?
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Answer B: Allow a greater following distance and wait for larger gaps in traffic
A loaded motorcycle accelerates and stops more slowly, so it needs more room ahead and bigger gaps to merge, to pass or to cross traffic.
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14. Why is the staggered formation abandoned in a curve?
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Answer D: Because each rider needs the full width of the lane to choose a line through the curve
In a curve every rider must be free to use the whole lane to set up an entry and an exit line, which is impossible while holding a fixed side position.
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15. Two vehicles meet on a steep, narrow mountain road with no room to pass. Which driver should back up?
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Answer C: The driver heading downhill, who has more control while reversing
On a narrow mountain road the vehicle facing downhill yields, because backing uphill gives better control than reversing down a grade.
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16. You are behind three slow vehicles on a two-lane road and the way ahead looks clear. What is the sound decision?
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Answer D: Pass one vehicle at a time, if the road allows it
Passing several vehicles in one move keeps you in the oncoming lane far too long and leaves nowhere to go if a vehicle appears.
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17. 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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18. A yellow diamond shows a horse with a rider. Besides slowing down, what else should a driver do?
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Answer C: Avoid using the horn or revving the engine
The equestrian crossing sign warns of horses on or across the road, and a sudden noise can startle an animal into the traffic lane.
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19. You face a red light at an intersection that has no stop line and no marked crosswalk. Where must you stop?
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Answer C: Before entering the intersection
With no line and no crosswalk, the stopping point is the near edge of the intersecting roadway, close enough to see cross traffic but clear of it.
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20. Why should you stay out of an intersection you cannot clear, even on a green light?
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Answer B: Because you would block cross traffic when their signal turns green
A vehicle stranded in the intersection blocks the cross street when its light turns green, which stalls the whole junction and traps emergency vehicles.
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21. Which action becomes clearly more risky beyond this sign?
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Answer A: Using the left side of the roadway to overtake
With vehicles coming the other way on the same pavement, overtaking on the left needs enough clear road to pull out, pass and return, which is often not available.
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22. When is a wet road usually most slippery?
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Answer C: Just after the rain starts, before the surface oil is washed away
Oil and dirt lying on the pavement mix with the first water and cut traction badly until continued rain washes the residue to the side of the road.
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23. What do the grooves in a tire tread do on a flooded road surface?
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Answer B: They give the water a way to escape so the tread can touch the road
Tread grooves pump water out from under the tire so rubber can meet pavement. A worn tread moves less water, so hydroplaning starts sooner.
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24. On a two-lane road with a broken yellow center line, may you cross it to turn into a driveway on the left?
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Answer C: Yes, when it is safe and the oncoming lane is clear
A broken center line may be crossed for a pass or for a left turn into a road or a driveway, once the oncoming lane is clear.
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25. Why is the center portion of the lane a useful default on an open road?
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Answer B: It keeps a space cushion on both sides and discourages lane sharing
From the middle of the lane the rider has room to move either way, and no driver sees an obvious gap alongside to squeeze into.