Idaho Permit Practice Test 3
A third full-length Idaho practice test: 30 more questions with zero repeats from Tests 1 or 2 — including extra Idaho-specific rules. The real DMV Class D Knowledge Test has 40 questions, and you need 34 correct (85%) to pass.
Tap an answer. The explanation opens so you can learn it, then go on. Keyboard: A–D or 1–4 to answer, then Enter or Space.
Question 1 of 30
1. An ambulance with flashing lights and a siren comes up behind you on a two-way street. What should you do?
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Correct answer: C. When an emergency vehicle approaches with lights and siren, pull to the right edge of the road and stop, avoiding blocking intersections. A predictable move to the right opens a clear lane. Everyone right, everyone stopped, help gets through.
2. A freeway on-ramp has a recommended speed of 35 mph on a yellow plaque. The freeway is posted 65. What should you do on the ramp curve?
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Correct answer: B. Yellow advisory speeds mark ramps and curves that cannot be taken at the highway limit. Slow for the curve, then speed up in the acceleration lane. Advisory plaques are the voice of physics, not decoration.
3. How much stopping room does FMCSA say large trucks and buses need?
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Correct answer: A. Official FMCSA passenger-vehicle guidance says Large trucks and buses need the length of up to two football fields to safely stop. Leave extra space when merging in front of these large vehicles, to give them the stopping space they need.
4. Ahead of a raised concrete median you see a white sign reading KEEP RIGHT with an arrow curving to the right. What should you do?
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Correct answer: A. KEEP RIGHT tells you the roadway splits around an island, median, or obstruction, and all traffic must pass on the right side. Passing left would put you into oncoming lanes. Follow the arrow around the obstacle, then continue straight.
5. Idaho's 'basic rule' law controls your speed in every driving situation. What does it require?
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Correct answer: D. Idaho's basic rule says you must never drive faster than is reasonable and prudent for current conditions, no matter what the sign posts. Rain, ice, fog, or heavy traffic can make the posted limit unlawful. Hook: conditions outrank numbers.
6. A friend in Idaho says, 'I feel fine, so I can drive.' Feelings aside, the law sets the illegal BAC for drivers 21 and older at which number?
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Correct answer: B. Feeling fine proves nothing; alcohol dulls the very judgment you use to check yourself. In Idaho, 0.08% is the per-se limit for adults, and measurable impairment often shows up well before a driver reaches it.
7. How does the official NHTSA NDR code book label leaving a crash without aiding?
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Correct answer: A. Official 23 CFR 1327 Appendix A lists B01 Hit and run—failure to stop and render aid after accident. Related codes cover fatal, injury, and property-damage hit-and-run. State penalties vary; this leftover uses that official national label.
8. You are driving on an Idaho state highway (not an interstate) with no speed limit signs posted. What is the maximum speed allowed?
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Correct answer: C. Unless a different limit is posted, Idaho state highways carry a 65 mph maximum, with 70 allowed only where signed; interstates are separate at 75 or 80. Lower defaults fit roads with driveways and cross traffic. Hook: state highways sit at sixty-five.
9. You must park on a hill where the road has no curb. Which way should you turn your wheels?
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Correct answer: A. With no curb to catch the car, always turn your wheels toward the road's edge, uphill or downhill. A runaway car then rolls off the travel lanes instead of into traffic. No curb: aim for the shoulder.
10. A yellow diamond shows a bicycle and the words SHARE THE ROAD. What is it asking you to do?
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Correct answer: B. Share-the-road warnings remind you that bicyclists are legal traffic. Slow, wait for a clear gap, and pass with generous space. The sign exists because drivers otherwise squeeze bikes toward the gutter.
11. Why does Ready.gov say to disable cruise control on slippery roads?
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Correct answer: A. Official Ready.gov car-safety guidance says Disable your vehicle’s cruise control when driving on slippery, icy or snowy roads. That’s because if you lose traction or start to skid, the cruise control will accelerate to maintain your vehicle’s speed, causing your wheels to spin even faster.
12. You are studying for the Idaho permit knowledge exam and want to schedule it as early as the law allows. You can hold a learner's permit beginning at which age?
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Correct answer: C. In Idaho, 14½ is the earliest age for a learner's permit, so plan your knowledge exam around that date. Study the official handbook, since permit questions come from it, and arrive with the required documents ready.
13. One sign shape is so important that it is reserved for a single message: STOP. Which shape is it?
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Correct answer: B. The eight-sided octagon belongs to the stop sign alone, so you can recognize a stop even when the face is snow-covered or faded. Count eight sides, prepare to stop. No other sign may borrow this shape.
14. A 19-year-old is pulled over in Idaho after a party. Under the zero-tolerance law, what BAC is enough for an underage drinking-and-driving violation?
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Correct answer: D. For drivers under 21 in Idaho, a violation begins at 0.02%. Zero-tolerance laws exist because young, inexperienced drivers face high crash risk with any alcohol. If you are underage, the only legal amount is none.
15. You are entering a roundabout. Which statement describes the correct way to use it?
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Correct answer: B. Entering drivers yield to vehicles already circulating in the roundabout, then merge and travel counterclockwise to the exit. Because everyone flows one way and entries wait, roundabouts avoid head-on conflicts. Traffic already in the circle goes first.
16. A yellow diamond shows two arrows pointing toward each other. What conflict is ahead?
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Correct answer: A. The two-way traffic warning tells you opposing cars will soon share the road, often after a divided or one-way segment. Keep right and expect headlights in the other lane. Two arrows, two directions.
17. Where does modern guidance tell you to place your hands on the steering wheel?
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Correct answer: D. Hold the wheel near the 9 and 3 o'clock positions, level on each side. This grip gives balanced control and keeps your arms out of the path of a deploying airbag. Think low and wide, clear of the bag.
18. In Idaho, state law sets a default limit for residential districts that applies wherever no speed limit sign is posted. That default is which of the following?
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Correct answer: B. Idaho law fixes the unposted residential default at 35 mph. Lawmakers keep it low because residential streets are full of crossings, parked cars, and pedestrians. Remember: no sign means the default applies, and posted signs override it.
19. Where do you go in Idaho to take the Class D knowledge test and apply for your permit or license?
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Correct answer: D. Idaho licenses, permits, and knowledge tests are handled at county driver's license offices run through the county sheriff, not by ITD directly. Local offices keep services close to residents across the state. Hook: in Idaho, the sheriff runs the test.
20. How does NHTSA describe the graduated driver licensing system?
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Correct answer: A. Official NHTSA GDL guidance says GDL is a three-phase system for beginning drivers, consisting of a learner’s permit, an intermediate license, and a full license. GDL allows beginning drivers to acquire driving experience in less-risky situations and under direct supervision during the learner’s permit phase.
21. A traffic light turns steady yellow as you approach the intersection. What does this signal tell you?
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Correct answer: A. A steady yellow light warns that the signal is about to turn red. Stop if you can do it safely; if you are too close to stop smoothly, continue through with caution. Yellow means prepare, not race.
22. A fluorescent pink diamond is posted after a storm, showing a landslide symbol. What does the unusual color mean?
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Correct answer: B. Fluorescent pink is the MUTCD color for incident and emergency management, used for crashes, floods, or slides. Slow down and expect workers, debris, or a sudden close. Pink means something urgent just happened.
23. Graduated driver licensing (GDL) in Idaho moves teens through permit, intermediate, and full-license stages. Entry into the first stage, the learner's permit, begins at what age?
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Correct answer: A. GDL entry in Idaho starts with a learner's permit at 14½. Each stage lifts restrictions as skill grows, because crash risk is highest in a driver's first solo months. The ladder starts at 14½; climb it patiently.
24. A passenger claims some Idaho highways have unlimited speed like the German autobahn. In reality, the state's highest legal limit is which of these?
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Correct answer: D. Every road in Idaho has a limit, and the statewide ceiling is 80 mph on designated highways. Higher speeds multiply crash energy dramatically, so no US state allows unlimited speed. Follow whatever limit is actually posted.
25. A steady red arrow is displayed at an Idaho intersection. What must you do?
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Correct answer: A. Idaho says that while a steady red arrow is displayed, no turn is permitted in the direction of the arrow until a green or yellow light allows movement. It is treated like a stop sign for that movement, not like a circular red with a right-turn exception.
26. You are driving through a residential district in Idaho and see no speed limit signs. What is the default speed limit?
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Correct answer: C. Where no sign is posted, Idaho's default residential limit is 35 mph. Homes mean driveways, pets, and kids near the road, so the default stays low. A posted sign overrides the default, so watch for one.
27. What do open-container laws prohibit, according to NHTSA?
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Correct answer: A. Official NHTSA open-container guidance says Open container laws prohibit the possession of any open alcoholic beverage container and the consumption of any alcoholic beverage by motor vehicle drivers or passengers. Those laws typically exempt passengers in buses, taxis, and the living quarters of mobile homes.
28. You are passing a bicyclist on a two-lane road. How much space should you leave when you can?
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Correct answer: B. A common safe-passing standard is at least three feet, and more when you are going fast or the bike is wobbling. If you cannot give the space, wait. Squeezing by is how mirrors hit handlebars.
29. A friend says every US interstate is 80 mph. In Idaho, the highest posted highway limit is actually:
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Correct answer: A. Interstate limits vary. Idaho tops out at 80 mph where posted. Learn the number for your state, then obey the sign in front of you, which is often lower.
30. If coffee is not enough, what short-term drowsy-driving step does NHTSA list?
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Correct answer: A. Official NHTSA drowsy-driving guidance says Drinking coffee or energy drinks alone is not always enough. They might help you feel more alert, but the effects last only a short time. Pull over for a short 20-minute nap in a safe place.
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