District of Columbia DC DMV Motorcycle Practice Test 56
- Questions25
- Correct to pass20
- Passing score80%
- Minimum age16 years
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1. Can a driver be charged with impaired driving after taking a legal over the counter medicine?
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Answer C: Yes, if the medicine impairs the ability to drive safely
Impaired driving laws cover any substance that affects driving, including cold remedies, allergy pills and sleep aids sold without a prescription.
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2. In a work zone the temporary lane lines conflict with the old lines still visible on the pavement. Which do you follow?
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Answer C: The temporary markings, which show the current traffic pattern
Temporary markings define the traffic pattern in force, and the old lines are simply the layout that no longer applies.
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3. The front brake lever feels soft and travels almost to the handgrip. What should the rider do?
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Answer D: Leave the motorcycle where it is until the brake system has been inspected
A spongy lever usually means air or fluid loss in the system, and a brake in that condition can fail completely under hard use.
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4. According to national crash research, how effective are helmets at preventing fatal injuries to motorcycle riders?
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Answer C: About 37 percent effective
Federal estimates put helmet effectiveness at roughly 37 percent for riders and about 41 percent for passengers in preventing fatal injuries.
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5. Warning signs such as stop ahead, yield ahead and signal ahead are installed mainly where
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Answer B: the traffic control device cannot be seen from far enough away
These advance warning signs are used when a crest, curve or obstruction keeps the stop sign, yield sign or signal from coming into view in time for a driver to react.
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6. A rider in the middle of the group pulls over onto the shoulder. What should the sweep rider do?
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Answer C: Stop and stay with that rider while the rest of the group continues
The sweep exists so that no rider is ever left alone at the roadside, while the remainder of the group carries on to a safe place to wait.
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7. 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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8. Every signal head at an intersection is flashing red in all directions. How should you treat the intersection?
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Answer C: As an all-way stop, stopping and then going in turn
Red flashing in every direction means each approach must stop, so the intersection works exactly like an all-way stop.
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9. How do stimulant drugs such as amphetamines or cocaine typically affect driving?
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Answer D: They can make the driver overconfident and more willing to take risks
Stimulants create a false sense of alertness and encourage aggressive, risky driving. When they wear off, sudden fatigue can follow.
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10. A sign warns that your exit leaves from the left side of the freeway. What should you do?
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Answer D: Move into the left lane in good time before you reach the exit
Left-hand exits are unusual, which is exactly why they are signed well in advance and why the lane changes should be finished early.
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11. What does the implied consent law mean for drivers?
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Answer D: By driving, you have agreed to a chemical test if lawfully arrested for impaired driving
Holding a license and driving on public roads is treated as consent to breath, blood or urine testing when an officer has grounds to arrest you. Refusing normally brings its own license penalties.
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12. A friend asks for a ride and has no gear at all. What is the correct approach?
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Answer A: Provide a certified helmet, eye protection and covering clothing
A passenger hits the ground the same way the rider does, so a passenger needs the same protection: a certified helmet, eye protection, gloves, boots and covering clothing.
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13. A car is passing you on a two lane road. Which lane position is generally best while it goes by?
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Answer A: The center portion of your lane
The middle of the lane keeps distance from the passing vehicle and its mirrors while leaving room on the other side if the rider needs it.
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14. Why should a rider downshift one gear at a time instead of skipping several at once?
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Answer D: Skipping gears can lock the rear wheel through sudden engine braking
Dropping several gears at once forces engine speed far above what road speed supports, and the rear tire can be dragged into a skid when the clutch comes out.
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15. What does DC law say about driving over a fire hose laid in the street?
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Answer D: It is prohibited and carries its own fine
DC regulations make driving over a fire hose a separate infraction.
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16. You are already inside an intersection when you realize you should be in the lane beside you. What should you do?
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Answer C: Stay in your lane through the intersection and change lanes afterwards
Drivers in an intersection are watching for cross traffic and turning vehicles, so an unexpected sideways move there is easily missed.
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17. The green left-turn arrow ends and a steady red ball comes on for your lane, at an intersection where no turn on red is allowed. What must you do?
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Answer D: Stop and wait, because no turn is allowed while the red ball is lit
Once a red indication faces your lane and no turn on red is permitted there, the turn is over; only a vehicle already inside the intersection completes its movement.
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18. Why is parking next to a fire hydrant or in a marked fire lane prohibited?
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Answer D: It would delay firefighters who need immediate access to the hydrant or the building
Fire hydrants and fire lanes must remain clear at all times so emergency crews can connect hoses and reach a building without delay.
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19. Apart from a crash, when do helmet makers generally advise replacing a helmet?
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Answer A: After several years of use, as the liner and materials age
Liners, glues and straps degrade with sweat, sunlight and time, so manufacturers commonly recommend replacing a helmet after several years even if it looks fine.
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20. Which of the four blind spots around a tractor-trailer is the largest?
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Answer A: The one on the right side of the truck
A truck has no-zones on all four sides, and the right-side blind spot is the largest because it runs back along the trailer and reaches across more than one lane.
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21. An exit ramp is separated from the highway by a triangle of pavement painted with white stripes. What may you do there?
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Answer C: Nothing; keep off it and choose either the lane or the ramp
The striped area between a ramp and the through lanes is not for driving, stopping or last-second changes of direction.
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22. A sign shows a lane joining from the right with no merge required. What does that mean?
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Answer B: The joining traffic gets its own new lane, so nobody has to merge
An added lane means the roadway gains a lane at that point, so entering vehicles have somewhere to go without anyone changing lanes.
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23. 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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24. Many signs use a symbol instead of words. The main advantage is that a symbol
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Answer C: can be read from farther away and by more people
A symbol is recognized at greater distance than a line of text and does not depend on the reader knowing English.
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25. Traffic is backed up on the far side of a railroad crossing. What should you do before driving onto the tracks?
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Answer D: Wait behind the tracks until there is room to clear them completely
Never enter a crossing until you are certain you can drive completely across without stopping, because a vehicle trapped on the tracks cannot get out of a train's way.