530+ questions based on the official Idaho Driver's Handbook (July 2024). Realistic exam simulator with instant scoring. No signup required.
40 random questions, no timer — matches Idaho's real Class D knowledge test. Miss up to 6 (85% / 34 correct) to pass.
Practice road signs exclusively — shapes, colors, and meanings. Perfect for targeting the sign section before your exam.
Test only the critical numbers — speed limits, distances, BAC limits, suspension periods. The most memorized facts on the real exam.
Fast 15-question session — perfect for a daily warm-up or quick review before bed.
Every question, random order, no timer. Best for deep study before your test date.
Key chapters from the official handbook — organized, summarized, and exam-focused. Read before your test!
Walked into the Ada County DMV this morning shaking and walked out with a permit 🎉 Honestly almost the same questions I drilled here.
Wish I'd found this before paying $20 for a sketchy app. The studded-tire and open-range questions are SO Idaho — nothing else covers them.
My son did the Quick Drill every night after dinner for two weeks. First try pass at the Kootenai county office. So proud ❤️
Everything important from the Idaho Driver's Handbook (July 2024) — organized for the exam
Memorize these numbers first. Idaho test questions are frequently built around specific distances, speeds, BAC levels, and time periods. These come up constantly.
Road signs are tested heavily. Know each sign's shape, color, and meaning. The real test often shows a sign description and asks what it means.
| Shape | Meaning | Example |
|---|---|---|
| Octagon (8-sided) | STOP — always and only | Stop sign |
| Triangle (pointing down) | YIELD — give right of way | Yield sign |
| Diamond | WARNING — hazard ahead | Curve, pedestrian, deer |
| Pentagon (5-sided) | SCHOOL ZONE | School crossing |
| Pennant (triangle right) | NO PASSING ZONE | No-passing pennant |
| Round (circle) | RAILROAD CROSSING advance warning | RR crossing sign |
| Rectangle (vertical) | REGULATORY — rules you must follow | Speed limit, turn restrictions |
| Rectangle (horizontal) | GUIDE or INFORMATION | Street name, mile marker |
| X-shaped crossbuck | RAILROAD CROSSING — treat like yield | Railroad crossbuck |
| Color | Category | What It Means |
|---|---|---|
| Red | Regulatory — STOP / PROHIBIT | Stop, yield, do not enter, wrong way, no-turn circles |
| Yellow | WARNING | General hazard warnings — curves, hills, intersections, animals |
| Orange | WORK ZONE / CONSTRUCTION | Construction ahead, road crew, slow down and drive with care. In Idaho, exceeding a posted work-zone speed limit can result in an enhanced, fixed penalty — and the 15-mph passing-speed exception does NOT apply in work zones (p.69, 76). |
| Green | GUIDE / DIRECTIONAL | Highway exits, distances, direction, mile markers |
| Blue | SERVICES | Gas, food, lodging, hospital, rest area |
| Brown | RECREATION / CULTURAL | Parks, campgrounds, historical sites, scenic areas |
| White | REGULATORY | Speed limits, lane rules, turn restrictions |
| Fluorescent Yellow-Green | WARNING — pedestrian / school / bike | School zones, crosswalks, bike lanes |
| Fluorescent Pink | INCIDENT MANAGEMENT | Crash clean-up, debris removal, temporary traffic control |
Right of way is the #1 failure topic on the DMV knowledge test. Master every scenario below — these questions will be on your exam.
| Signal | What You Must Do |
|---|---|
| Solid GREEN | Proceed — but yield to traffic already in intersection |
| Solid YELLOW | Prepare to stop if safe; proceed only if stopping would be dangerous |
| Solid RED | Stop completely; may turn right on red after stop and yield (unless posted) |
| GREEN ARROW | Protected turn — oncoming traffic must stop. You may turn in the arrow's direction, but still yield to vehicles and pedestrians already in the intersection. |
| YELLOW ARROW | Protected turn is ending — prepare to yield or stop |
| Flashing YELLOW ARROW | Unprotected turn — you MAY turn but MUST yield to oncoming and pedestrians |
| Flashing RED | Treat exactly like a STOP sign — stop, yield, proceed when safe |
| Flashing YELLOW | Caution — slow down and proceed carefully. Do not need to stop. |
| RED + GREEN ARROW | Stop for through traffic; turn in direction of arrow only |
| Signal NOT working | Treat as ALL-WAY STOP — all traffic stops |
DUI questions appear on virtually every DMV knowledge test. Know the BAC levels, implied consent law, and penalties. Idaho uses "DUI" (Driving Under the Influence).
| Situation | Consequence |
|---|---|
| BAC of 0.08+ (driver 21+) | DUI — 1st conviction: fine up to $1,000, up to 6 months jail, license suspended 90–180 days with NO driving privileges the first 30 days. Enhanced penalties at 0.20 BAC (p.131-132). |
| BAC of 0.04+ (commercial vehicle) | DUI threshold for any commercial-vehicle operator (p.131). |
| Test refusal (implied consent) | Driving in Idaho is implied consent to a BAC or drug test if suspected of DUI. 1st refusal: $250 civil penalty + 1-year absolute suspension. 2nd refusal within 10 years: 2-year absolute suspension (p.126-127). |
| BAC — under 21 (0.02 rule) | Drivers under 21 are DUI at a BAC of 0.02 or more. Idaho applies this strict standard regardless of whether driving is impaired (p.131). |
| Open container | Open alcoholic containers are prohibited for driver AND passengers. Unsealed containers must be in the trunk, or behind the last upright seat if there is no trunk (p.130). |
| Sobering up | Only the passage of TIME removes alcohol from your bloodstream. Coffee, food, exercise, and cold air do nothing (p.129). |
School bus rules are heavily tested. Traffic must stop and remain stopped while a school bus's red lights flash and/or its stop arm is extended — until the lights are off, the arm is in, and all children are clear of the roadway and the bus (p.70).
| Location | Minimum Clearance |
|---|---|
| Fire hydrant | 15 ft — do not park within 15 ft (p.81) |
| Stop sign / yield sign / flashing signal / traffic control device | 30 ft — do not park within 30 ft of these (p.81) |
| Crosswalk at intersection | 20 ft — do not park within 20 ft of a crosswalk (p.81) |
| Railroad crossing | 50 ft — do not park within 50 ft of railroad tracks (p.81) |
| Fire station driveway | 20 ft from the driveway entrance (p.81) |
| Parallel-park curb distance | Vehicle must be parallel and within 18 inches of the curb / edge of roadway (p.80) |
| Bridge, overpass, or tunnel | Never — always prohibited (p.81) |
| Double-parked (street side of another parked vehicle) | Never — always prohibited (p.81) |
| Inside an intersection or on a crosswalk | Never — always illegal |
| Handicapped space (without placard) | Never park here |
| No Stopping zone | Never stop here, for any reason |
| No Parking zone | No parking — may stop to load/unload |
The rule: always turn wheels so that if the car rolls, it rolls away from traffic or is caught by the curb.
| Situation | Turn Wheels | Why |
|---|---|---|
| Facing DOWNHILL, WITH curb | RIGHT (into curb) | Car rolls into curb and stops |
| Facing DOWNHILL, NO curb | RIGHT (away from road) | Car rolls away from traffic |
| Facing UPHILL, WITH curb | LEFT (away from curb) | Car rolls back, caught by curb |
| Facing UPHILL, NO curb | RIGHT (away from road) | Car rolls away from traffic |
GDL questions appear on many tests. Know Idaho's Graduated Driver Licensing program, the restrictions in each phase, and the specific ages, hold periods, and curfew hours.
| Equipment | Requirement |
|---|---|
| Headlights (on) | Headlamps and tail lamps must be lit from sunset to sunrise, and any time visibility is 500 feet or less. Use headlamps — not parking lights — when lights are needed for driving (p.43, 110). |
| High beams (dim) | Dim within 500 feet of an oncoming vehicle, and within 200 feet when overtaking a vehicle ahead (p.43). High beams must illuminate at least 350 ft; low beams at least 100 ft (p.38). |
| Horn | Required — must be heard at least 200 feet away. Horns with unreasonably loud or harsh sounds are prohibited. Never sound your horn near horseback riders (p.39, 97-98). |
| Turn signals | Signal at least 100 feet before a turn or lane change in business or residential areas. On freeways/highways: at least 5 seconds before lane change or exit (p.72, 85). |
| Studded snow tires | Permitted in Idaho only from October 1 to April 30. ITD may adjust dates due to weather. Studded tires are NOT allowed during the skills test from May 1 to September 30 (p.42, 36). |
| Tires (tread) | Each tire must have at least 2/32 inch of tread (p.39). |
| Muffler | Required — must prevent loud or unusual noise. Muffler cut-outs and bypasses that amplify exhaust noise are prohibited (p.40, 42). |
| Brakes | Two brake systems required. Foot brake must stop the vehicle traveling 20 mph on dry pavement within 25 feet. Emergency/parking brake must stop within 55 feet at 20 mph and hold the car on a hill when parked (p.38). |
| Mirrors | Rear-view mirror must show at least 200 feet to the rear. If a load or trailer blocks the view, two side mirrors are required (p.40). |
| Brake/stop lights | Visible at least 100 feet to the rear in normal sunlight (p.39). |
| Tail lights | Visible at least 500 feet to the rear (p.39). |
| Wipers | Must adequately clean the windshield when used |
| Studded snow tires | Permitted only October 1–April 30 (ITD may adjust). Not allowed in skills tests May 1–September 30 (p.42, 36). |
| Overhanging loads | If a load extends 4+ feet beyond the rear, display an 18" red flag at the end. At night, a red light visible 500 ft replaces the flag (p.43). |
| Hazard lights | For use when parked/stopped in an emergency — not while driving normally |
| Seat belts & child restraints | Idaho law requires ALL occupants to wear safety belts and/or shoulder straps. Children 6 and younger must be in approved child safety seats. Children under 13 should ride in the back seat (p.40-41). |
A proven 4-phase approach that builds real understanding — not just memorization. Work through each phase at your own pace, and you'll walk into the DMV ready to pass on your first try.
| Your Score | Status | What to Do Next |
|---|---|---|
| Under 75% | Needs more work | Go back to Phase 3 — run Weak Spots mode on your wrong answers. Re-read the Study Guide for those topics. Then try the simulator again. |
| 75% – 89% | Almost there | Run Weak Spots on what you missed, then take the simulator again. You're close — one more round should get you there. |
| 90%+ | Ready! 🎉 | Run the simulator one more time to confirm. Score 90%+ twice → you are ready for the real test. |
Before you walk into the Idaho Transportation Department office:
40 questions · need 85% (about 34 correct) · you can miss up to 6 and still pass
The official handbook from the Idaho Transportation Department — the single source of truth for the written test.
Idaho Driver's Handbook (July 2024) · Revised January 2026 · Published by Idaho DMV
Download Official Manual →Source: Idaho DMV · Free download
We've distilled the official manual into 12 focused study sections. Every number, rule, and fact verified against the handbook. Click any topic to start studying.
Idaho's Class D knowledge test has 40 questions. You may miss up to 6 (about 85% / 34 correct) before failing. There is no official time limit. The test is administered at county DMV offices (Idaho Driver's Handbook, p.32).
DUI stands for Driving Under the Influence. Idaho's BAC limits are 0.08 or more for drivers 21 and older, 0.02 or more for drivers under 21, and 0.04 or more for commercial drivers. A BAC of 0.20 or more triggers enhanced penalties (p.131).
Idaho recommends the three-second following distance rule under good conditions. Pick a fixed point ahead; if you reach it before counting "one-thousand-one, one-thousand-two, one-thousand-three," you are following too closely. In bad weather, multiply that 3 seconds several times. Allow more than 3 seconds when following a motorcycle, and 2 car lengths per 10 mph behind a snowplow (p.79, 104, 109).
Idaho residents may obtain a Driver Training (DT) Permit at 14½ to under 17 by enrolling in an approved driver training program. The minimum licensing age is 15 — but drivers under 17 must first complete approved Driver Training (30 classroom + 6 BTW hours) plus the GDL supervised period (50 hours, 10 at night) over a minimum 6-month, violation-free period (p.3, 15-19).
Yes, this practice site is completely free. Every question is verified against the Idaho Driver's Handbook (July 2024).
Idaho's 511 Traveler Services provides road and weather conditions across the state — dial 511 from any phone or visit 511.idaho.gov for live highway conditions, closures, and chain laws (p.107).
The Idaho Class D knowledge test is published by the Idaho Transportation Department (ITD) and administered at county DMV offices through the county sheriff's driver license bureaus. It's a 40-question, untimed test — you may miss up to 6 (about 85% / 34 correct) before failing. Idaho is one of the few states that lets drivers pass slow vehicles by up to 15 mph over the posted limit on a 2-lane road — but only when the posted limit is 55 mph or higher and you're not in a work zone (p.76). It's also one of the few states with an open range / livestock right-of-way rule on rural highways (p.108).
Idaho uses DUI (Driving Under the Influence) with a 0.08 BAC threshold for drivers 21+, 0.02 for drivers under 21, and 0.04 for commercial drivers (p.131). A BAC of 0.20 or more triggers enhanced penalties. A first DUI conviction carries up to 6 months in jail, up to a $1,000 fine, and a 90- to 180-day suspension with absolutely no driving privileges for the first 30 days (p.132). Idaho's implied-consent law: refusing the evidentiary breath/blood test brings a $250 civil penalty plus a 1-year absolute suspension on a first refusal — a 2nd refusal in 10 years means a 2-year absolute suspension (p.126-127). Every fact on this site is verified against the Idaho Driver's Handbook (July 2024).
Idaho's Graduated Driver's License (GDL) program starts with a Driver Training (DT) Permit at 14½. Approved Driver Training requires 30 classroom hours plus 6 hours behind-the-wheel with an approved instructor. Then comes the GDL supervised period: at least 50 hours of supervised driving (10 at night) over a minimum 6-month, violation-free period, accompanied by a valid licensed driver at least 21 years old in the front seat (p.19). Drivers may be licensed at 15, but those under 16 may drive only between 5:00 a.m. and 10:00 p.m. unless a 21+ licensed driver is in the front seat. During the first 6 months of licensure, drivers under 17 may carry no more than ONE passenger under 17 unless related by blood, adoption, or marriage (p.16). GDL penalties: 1st moving-violation conviction = warning letter; 2nd = 30-day suspension; 3rd+ = 60-day suspension (p.125).
This free practice test is verified against the Idaho Driver's Handbook (July 2024) and is built for anyone testing at county DMV offices in Boise, Meridian, Nampa, Caldwell, Idaho Falls, Pocatello, Twin Falls, Coeur d'Alene, Lewiston, Rexburg, Moscow, and Sandpoint, and every other Idaho location. The Idaho knowledge test fee is $5.00; a Class D license starts at $20 (1-year, age 17 or 20). Free practice here, no signup, no paywall.
Permit rules vary between states. If you or someone you're helping is testing in a different state, we have free practice tests verified against each state's current manual:
Oregon · Washington · Utah · Nevada