Idaho Road Signs Test

4.6 out of 5 (220 votes)
80% Passing score
10 Questions
2 Mistakes allowed
Idaho road signs are not exactly subtle, which is the point, but they still have a way of blending into the background when you are thinking about speed limits, lane position, snow glare, a farm truck ahead of you, and whether that next curve is sharper than it looks. This Idaho road signs test gives you a cleaner place to practice all of that recognition before the real Idaho driver’s license test puts it in front of you with a clock, a score, and the usual DMV atmosphere quietly doing its thing. This Idaho DMV practice test includes 20 multiple-choice questions on the signs and markings Idaho drivers are expected to know: warning signs, regulatory signs, school zones, work zones, railroad crossings, sign colors, sign shapes, traffic signals, pavement markings, and right-of-way signs. It also lines up with the kind of material found in the Idaho Driver’s Handbook and the Manual on Uniform Traffic Control Devices, which is the federal standard that keeps road signs from becoming a fifty-state guessing game. A stop sign is obvious, sure. The trickier stuff is usually what a sign is warning you about before you get there, which is a less dramatic sentence than it deserves to be. To pass this Idaho permit sign test, you’ll need 16 correct answers out of 20. That makes it a focused warm-up for the sign portion of Idaho’s broader Class D knowledge test. The official Class D test has 40 questions, allows up to 6 missed answers, and requires 34 correct responses, or 85%, to pass. It covers more than signs, too: traffic laws, safe driving practices, impaired driving, sharing the road, driver responsibility, signals, markings, and the rest of the handbook material that sounds simple until the wording gets oddly specific. This free Idaho DMV signs test is useful for new drivers, out-of-state transfer applicants, and drivers whose Idaho license has been expired for 25 months or more, since those applicants may need to take the knowledge test. Drivers under 17 still have Idaho’s driver training and Graduated Driver Licensing steps in the mix, while applicants 17 and older can work from a Class D instruction permit before the road skills test. Different path, same basic reality: the signs still count. Take the Idaho sign test online whenever you have a few minutes, then use the handbook, road sign charts, flashcards, or a driver education course to tighten up anything that feels fuzzy.
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Sample Idaho Permit Test Questions

Question 1

On an Idaho freeway, orange signs, cones, or drums indicate that you should:

  1. A. Change lanes while maintaining your current speed
  2. B. Expect workers, equipment, or changing roadway conditions
  3. C. Assume your lane ends immediately
  4. D. Increase speed to clear the area quickly

Correct answer: B. – Expect workers, equipment, or changing roadway conditions

Orange signs and channelizing devices identify work zones, where drivers may encounter workers, heavy equipment, narrow lanes, gravel, or uneven pavement. Pay close attention to all signs and follow any directions given by authorized personnel. Reduce speed when required and leave adequate space behind the vehicle ahead.

Source: Idaho Driver’s Handbook (July 2026) — Highway & Vehicle Knowledge, “Work Zone Signs”

Question 2

A yellow diamond sign showing opposing traffic arrows becoming separated by a median warns that:

This sign means:
  1. A. A divided highway is ending
  2. B. A one-way street is beginning
  3. C. A one-way street is ending
  4. D. A divided highway is beginning

Correct answer: D. – A divided highway is beginning

The Divided Highway Begins sign warns that two-way traffic ahead will be separated by a center strip or median. Keep to the right of the divider as the roadway separates. This warning sign does not indicate the beginning or end of a one-way street.

Source: Idaho Driver’s Handbook (July 2026) — Highway & Vehicle Knowledge, “Warning Signs—Divided Highway Begins”

Question 3

A red, eight-sided STOP sign requires you to:

This sign means:
  1. A. Slow only when another vehicle is approaching
  2. B. Stop completely, yield as required, and proceed when safe
  3. C. Continue cautiously without stopping if the road looks clear
  4. D. Stop only when cross traffic is present

Correct answer: B. – Stop completely, yield as required, and proceed when safe

In Idaho, a driver approaching a STOP sign must stop at a marked stop line, before the near-side crosswalk, or where the driver can view approaching traffic before entering. After stopping, the driver must yield to vehicles in the intersection or approaching closely enough to be an immediate hazard. Proceed only when the movement can be made safely.

Source: Idaho Code § 49-807 – Stop Signs and Yield Signs, Idaho Driver’s Handbook — “Traffic Signs,” “Stop”

Question 4

The divided-highway crossing sign shown indicates that:

This sign means:
  1. A. You must turn left or right because the road ends
  2. B. You are approaching a T-intersection
  3. C. Your road is approaching an intersection with a divided highway
  4. D. Your road will pass over a divided highway

Correct answer: C. – Your road is approaching an intersection with a divided highway

This sign advises that the road ahead crosses a divided highway. The median causes the crossing to function as two separate intersections, so drivers must pay attention to signs, markings, and traffic at each roadway. It does not indicate that the road ends or passes over the highway.

Source: Idaho MUTCD — § 2B.50, “Divided Highway Crossing Signs (R6-3 and R6-3a)”

Question 5

When may you cross double solid yellow centerlines?

  1. A. To pass a slower vehicle traveling in your direction
  2. B. Only during daylight hours
  3. C. Whenever no oncoming vehicle is visible
  4. D. To make a permitted turn when it is safe

Correct answer: D. – To make a permitted turn when it is safe

Double solid yellow lines prohibit passing in either direction. They may be crossed to make a turn when the movement is permitted and can be completed safely, such as a left turn into or out of a driveway or business entrance. A clear view of the road does not make passing across these lines lawful.

Source: Idaho Driver’s Handbook — “Pavement Markings,” “Double Solid Yellow Lines”

Question 6

Your signal turns green, but vehicles are blocking the intersection and the space beyond it. What should you do?

  1. A. Remain outside the intersection until there is room to cross
  2. B. Enter if you can steer around the blocking vehicles
  3. C. Pull into the intersection and wait there
  4. D. Honk and enter because your signal is green

Correct answer: A. – Remain outside the intersection until there is room to cross

Idaho law prohibits entering an intersection unless sufficient space is available on the other side for your entire vehicle without obstructing traffic or pedestrians. This rule applies even when a traffic signal indicates that you may proceed. Wait outside the intersection until the vehicles clear and enough space is available.

Source: Idaho Code § 49-614 – Stop When Traffic Obstructed, Idaho Driver’s Handbook — “Traffic Signals,” “Green Circular Light”

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