Idaho Permit Practice Test

Correct answer: Time

Once alcohol is in your bloodstream, neither coffee, aspirin, deep breathing, a slap in the face, exercise, nor eating will sober you up. Only time will return you to normal.

Correct answer: Non-commercial motor vehicles

A Class D license is Idaho’s non-commercial driver’s license — it lets you operate ordinary passenger vehicles. Operating a large commercial vehicle requires a Class A, B, or C commercial driver’s license (CDL).

Correct answer: Within 18 inches

When parking on a public road, park parallel to and within 18 inches of the curb or edge of the roadway, facing the same direction as traffic on your side of the road.

Correct answer: No, but an officer may cite you if your vehicle is unsafe or lacks proper equipment

Idaho does not require an annual safety inspection. However, you may not drive a vehicle that is mechanically unsafe, and if an officer finds your vehicle unsafe or lacking proper equipment, they may cite you.

Correct answer: Right-of-way is something to be given, not taken

Idaho law defines when a driver or pedestrian must yield, but the guiding rule is that right-of-way is something to be given, not taken — never insist on it when doing so risks a crash.

Correct answer: About 10 to 15 seconds ahead

Good drivers keep an eye on what is happening about 10 to 15 seconds ahead — about a block in city driving. This helps you avoid last-minute lane changes, turns, and stops.

Correct answer: Do not need to come to a complete stop, but must yield to vehicles already at the intersection

In Idaho, bicyclists do not need to come to a complete stop at stop signs. They must, however, yield the right-of-way to vehicles already in or at the intersection, then proceed with caution.

Correct answer: Black and white, although some are red and white

Regulatory signs — which tell you what you must or must not do — are generally black and white, although some, such as stop and yield signs, are red and white.

Correct answer: You must always drive at a speed that is reasonable and prudent for the conditions

Idaho’s basic rule requires you to drive at a speed that is reasonable and prudent at all times, considering the road surface, visibility, curves, traffic, and other conditions — even if that means driving below the posted limit.

Correct answer: When changing lanes, turning, entering or leaving a freeway, or pulling away from a parked position

You must signal whenever you change lanes or pass, exit a roundabout, turn at an intersection or into a driveway, enter or leave a freeway, or pull away from a parked position. Proper signaling helps prevent rear-end collisions.

Correct answer: About the same amount of alcohol

A jigger (1.5 ounces) of 80-proof hard liquor, five ounces of table wine, and 12 ounces of beer all contain about the same amount of alcohol — roughly an ounce each. Beer is not "safer" than hard liquor.

Correct answer: A Class A, B, or C commercial driver’s license (CDL)

Class A, B, and C licenses are Commercial Driver’s Licenses. A commercial vehicle, for licensing purposes, has a manufactured gross vehicle weight rating of 26,001 pounds or more, is placarded for hazardous materials, or is designed to carry 16 or more passengers including the driver.

Correct answer: The same direction as traffic on your side of the road

Park parallel to and within 18 inches of the curb, facing in the same direction as traffic on your side of the road.

Correct answer: At least 2/32 of an inch

Each tire should have at least 2/32 of an inch or more of tread. Worn tires reduce traction, especially on wet or icy roads.

Correct answer: Oncoming traffic — you must yield to it unless a traffic-control device directs otherwise

When making a left turn, you must always yield to oncoming traffic in the intersection unless a traffic-control device directs otherwise.

Correct answer: Quickly turn your head to check your blind spot

Blind spots are areas near the rear corners of your vehicle not visible in your mirrors. Never rely on mirrors alone — quickly turn your head to check the blind spot before moving to the side.

Correct answer: At least 3 feet

Three feet is the minimum passing space drivers should leave when passing a bicyclist. Higher speeds require more space; move into the left lane to pass when possible.

Correct answer: At the point nearest the intersecting road where you have a view of approaching traffic

At a stop sign you stop at a marked stop line if there is one; if not, before the crosswalk on the near side; and if there is no crosswalk, at the point nearest the intersecting highway where you can see approaching traffic before entering.

Correct answer: Yes — driving too slowly and impeding the safe flow of traffic violates the basic rule, even under the posted limit

If you drive too slowly for conditions and impede the safe flow of traffic — even while under the posted speed limit — you are violating the basic-rule law. It is also illegal to stay in the extreme left lane in a way that impedes traffic.

Correct answer: At least 100 feet in business or residential areas, or 5 seconds on freeways and highways

Signals must start at least 100 feet before you turn or change lanes in business or residential areas, or at least 5 seconds ahead on freeways or highways.