Idaho Road Signs Test Simulator

4.9 out of 5 (127 votes)
80% Passing score
25 Questions
5 Mistakes allowed
Idaho road signs deserve more attention than most people give them, mostly because they seem familiar right up until two similar-looking signs show up in the same study session and suddenly the difference matters. This Idaho DMV practice test is a road sign simulator built for that exact kind of practice. It gives you 20 randomized multiple-choice questions each time, so the work does not turn into memorizing one tidy little answer pattern and hoping the real Idaho permit test plays along. The official Idaho Class D knowledge test is broader, of course. It comes from the Idaho Driver’s Handbook and covers traffic laws, signs, signals, pavement markings, safe driving habits, impaired driving, sharing the road, and basic driver responsibility. There are 40 questions on the real test, and Idaho expects 34 correct answers to pass. Miss more than 6, and you wait 3 days before retesting, then pay the knowledge test fee again. So yes, the stakes are not life-altering, but they are irritating enough to take seriously. This Idaho drivers license practice test narrows the lens to road signs because that is where a lot of applicants get a little too casual. Warning signs, regulatory signs, school zones, work zones, railroad crossings, sign shapes, sign colors, right-of-way signs, pavement markings — they all seem simple when you read them one by one. Mixed together, under test conditions, they start asking for actual recall. Idaho’s roads add their own flavor too, with rural highways, mountain driving, winter conditions, and situations where you need to recognize when the law expects you to slow down, move over, or adjust before things get messy. For teen drivers, this practice drivers test fits into a longer licensing path. Idaho drivers under 17 have to complete approved driver training, including classroom instruction, behind-the-wheel driving, and in-car observation, then finish the supervised instruction period before moving toward the written knowledge test and road skills test. Adult applicants skip the teen GDL requirements, which is nice, but they still have to deal with the usual pieces: documents, vision screening, required testing, fees, and the county driver’s license office process. Use this Idaho DMV permit test practice as a focused tune-up before the real Idaho written drivers test. The instant feedback is the useful part, honestly, because it shows you exactly where your sign knowledge is solid and where it is just sort of pretending to be solid.
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Sample Idaho Permit Test Questions

Question 1

In Idaho, a red-painted curb marks a place where:

  1. A. Parking is prohibited
  2. B. Parking is reserved for commercial vehicles
  3. C. Parking is reserved for persons with disabilities

Correct answer: A. – Parking is prohibited

The state handbook lists a red-painted curb as a no-parking location. Drivers must also obey posted parking signs, which may provide additional restrictions. Do not confuse a red curb with an accessible parking space, which is identified by the accessibility symbol and proper signs or markings.

Source: Idaho Driver’s Handbook (July 2026) — Traffic Laws & the Rules of the Road, “No-Parking Zones”

Question 2

How does a steady red arrow differ from a steady circular red signal?

What is the difference between traffic lights with red arrows and those with solid red lights?
  1. A. You may not make the movement shown by the red arrow until another signal permits it
  2. B. A red arrow is used only for protected turn lanes
  3. C. A red arrow applies only to left turns
  4. D. A red arrow applies only to right turns

Correct answer: A. – You may not make the movement shown by the red arrow until another signal permits it

Under Idaho law, a steady red arrow prohibits entering the intersection to make the movement indicated until a signal permits that movement. A steady circular red signal also requires a stop, but it may permit a right turn or a left turn onto a one-way highway unless a sign prohibits the turn. Drivers making a permitted turn must yield as required.

Source: Idaho Code § 49-802(3)(a)–(c) – Traffic-Control Signal Legend

Question 3

At an Idaho intersection, a peace officer directing traffic signals you to proceed through a red light. What must you do?

A traffic light is red, but a police officer is telling you to go ahead anyway. What should you do?
  1. A. Wait for the signal to turn green
  2. B. Change lanes before proceeding
  3. C. Follow the officer’s lawful direction
  4. D. Remain stopped until the officer approaches

Correct answer: C. – Follow the officer’s lawful direction

Drivers must obey traffic-control devices unless a peace officer directs otherwise. A person also may not willfully refuse to comply with a lawful traffic direction from an authorized peace officer. Proceed as directed while remaining attentive to the officer’s signals and surrounding traffic.

Source: Idaho Code § 49-801(1) – Obedience to and Required Traffic-Control Devices, Idaho Code § 49-1419 – Obedience to Traffic Direction

Question 4

What does a flashing yellow traffic signal require?

  1. A. Merge with entering traffic
  2. B. Proceed only with caution
  3. C. Stop for a pedestrian crossing
  4. D. Come to a complete stop

Correct answer: B. – Proceed only with caution

A flashing yellow signal is a caution indication. Idaho law allows a driver to proceed through the intersection or past the signal only with caution. The driver’s handbook advises slowing down and looking carefully for hazards before continuing.

Source: Idaho Code § 49-804(1)(b) – Flashing Signals, Idaho Driver’s Handbook (July 2026) — Highway & Vehicle Knowledge, “Traffic Signals”

Question 5

Your signal has just turned green. Which condition must you verify before entering the intersection?

  1. A. All other road users have stopped for you
  2. B. No traffic or pedestrians lawfully in the intersection will be endangered
  3. C. Pedestrians have yielded to your vehicle
  4. D. You are traveling straight ahead

Correct answer: B. – No traffic or pedestrians lawfully in the intersection will be endangered

A driver facing a green signal may proceed but must yield to traffic and pedestrians lawfully within the intersection or an adjacent crosswalk. The Idaho handbook specifically instructs a driver to wait when a pedestrian entered the crosswalk before the light changed. Check the intersection and crosswalk before moving.

Source: Idaho Code § 49-802(1)(a) – Traffic-Control Signal Legend, Idaho Driver’s Handbook (July 2026) — Sharing the Road, “Pedestrians”

Question 6

A curbside parking sign with green lettering and border generally indicates that parking is:

  1. A. Reserved for emergency vehicles
  2. B. Limited to passenger loading
  3. C. Permitted subject to the time or manner shown
  4. D. Prohibited at all times

Correct answer: C. – Permitted subject to the time or manner shown

Permissive parking signs use green lettering and borders on a white background. They allow parking only under the time limit or other conditions stated on the sign. Idaho incorporates the federal traffic-control manual that establishes this sign design, so drivers must read and follow the entire posted message.

Source: IDAPA 39.03.41.004 – Incorporation by Reference, Manual on Uniform Traffic Control Devices for Streets and Highways, 11th ed. — § 2B.53, “Design of Parking, Standing, and Stopping Signs”

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