Iowa DOT Motorcycle Practice Test 19
- Questions25
- Correct to pass20
- Passing score80%
- Minimum age14 years
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1. Why is reflective material more useful than bright color once it is dark?
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Answer C: It throws headlight light back toward the driver, while color goes unseen
Color needs daylight to be seen, while reflective material returns the beam of an approaching vehicle straight back to its driver.
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2. 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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3. 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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4. What does the last step of T-CLOCS, Stands, ask a rider to check?
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Answer D: That the stands are not bent and that their springs hold them up
A bent stand or a weak spring can let the stand fall while riding, so both the sidestand and the centerstand are checked for damage and spring tension.
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5. What do zero tolerance laws mean for a driver who is under 21?
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Answer B: They commit a violation at an alcohol level far below the adult limit
Drivers under 21 may not legally drink, so every state sets a limit far below the adult one and treats even a trace reading as a violation. The exact figure is set by each state, and the penalty usually includes losing the license.
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6. A yellow diamond shows a car with wavy lines behind its rear tires. What is the warning?
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Answer D: The surface loses grip badly when it is wet
The slippery when wet sign marks a stretch where traction falls off sharply in rain, so speed and braking must be reduced well in advance.
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7. Heavy rain has left water standing on the highway. What is the main risk to a rider?
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Answer D: The tires can ride up on the water and lose contact with the road surface
At higher speeds a tire can no longer push standing water aside and starts to hydroplane, so the rider slows and eases off rather than braking or turning hard.
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8. On a two-way street, where and how should you park at the curb?
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Answer C: On the right side, facing the way traffic moves
On a two-way street you must park on the right, headed in the direction of travel; parking facing traffic is prohibited.
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9. You come upon a person riding a horse on the roadway ahead of you. What is the correct way to pass?
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Answer A: Slow down, give plenty of room and do not use the horn
Horses startle easily, and a frightened horse can throw its rider into your path. Pass slowly and wide, and avoid any sudden noise.
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10. Red pavement markings are used on a roadway to show that
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Answer A: it must not be entered from that direction
Red markings identify a roadway that is not to be entered or used, and they also mark the pavement of truck escape ramps.
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11. Why is dusk one of the harder times of day to drive?
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Answer B: The failing light blurs shapes into the background
In fading light there is not enough contrast to pick objects out, yet it is not dark enough for headlights to do the work, so pedestrians and cyclists disappear.
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12. Alcohol is classified as which kind of drug?
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Answer B: A depressant that slows the central nervous system
As a depressant, alcohol slows the brain and nervous system, which lengthens reaction time and dulls the coordination that driving depends on.
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13. 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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14. Why is backing up on a freeway or on its shoulder prohibited?
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Answer A: Traffic arrives far too fast to expect a vehicle moving the wrong way
Freeway traffic closes on a stopped or reversing vehicle at highway speed and has almost no time to react to something moving against the flow.
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15. Why should a rider pull in the clutch at the first sign that the engine is seizing?
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Answer B: So a locking engine cannot lock the rear wheel through the drive train
A seizing engine can lock up, and with the clutch engaged that would lock the rear wheel, so disconnecting the drive keeps the wheel rolling while you coast off the road.
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16. Why should a load never be fastened to the handlebars or the front forks?
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Answer D: The weight upsets the steering and makes the front end handle unpredictably
Anything hung on the steering moves with it and changes how the motorcycle turns, which is why loads belong low and behind the rider instead.
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17. When should a rider avoid a tinted face shield or tinted goggles?
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Answer C: At night and in other low light conditions
A tint cuts the amount of light reaching the eyes, which makes hazards much harder to pick out once daylight fades.
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18. Which quality matters most in a face shield?
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Answer B: It resists penetration and is free of deep scratches
A shield has to stop objects thrown up from the road and stay clear enough for undistorted vision, and it needs some airflow so that it does not fog.
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19. How should you handle a prescription or over the counter medicine before driving?
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Answer D: Read the label and ask a pharmacist or doctor whether it affects driving
Many common medicines, including allergy and cold remedies, cause drowsiness or slowed reactions, and the label or a pharmacist can tell you whether driving is safe.
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20. What should be adjusted on the motorcycle before carrying a passenger?
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Answer C: The suspension and the tire pressure, following the owner's manual
The extra weight compresses the suspension and loads the tires, so both should be set to the values the manufacturer specifies for riding with a passenger.
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21. 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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22. You have just ridden through a stretch of deep standing water. What should you do next?
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Answer B: Ride slowly and apply the brakes lightly to dry them out
Wet brakes can grab or barely work at all, and gentle pressure while moving slowly heats and clears them before they are really needed.
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23. A traffic signal is displaying a flashing red light. How must you treat it?
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Answer D: Stop completely, then proceed when the way is clear
A flashing red carries the same meaning as a stop sign: come to a full stop, then go only when it is safe.
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24. Which is an early warning that fatigue is affecting your riding?
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Answer D: You miss turns and signs and have to think about routine actions
Fatigue shows up first as slower thinking and missed information, so treat lapses in attention as a signal to stop and rest.
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25. What does a light drag of the rear brake do during a slow, tight turn?
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Answer C: It steadies the motorcycle and smooths out the power reaching the rear wheel
Working the rear brake against a slipping clutch takes the jerkiness out of the drivetrain and holds the machine steady through the turn.