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Idaho Driver’s Knowledge Tests & License Practice Tests

This Practice Test
  Number of questions on each practice test:25
  Question pool:1,000+
  This is a randomized practice test



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#1. If an oncoming vehicle is drifting head-on into your lane:

If you are threatened with a head-on collision, slow down and try to warn the other driver by flashing your lights and honking your horn. Pull to the right as far as possible. Do not go left. The other driver may recover and hit you broadside.

If you cannot avoid a collision, steer so the cars will hit at an angle and avoid a head-on crash.


#2. When a traffic signal is showing a flashing red light, you must:

A flashing red indication means stop. You must come to a complete stop, yield to cross traffic or pedestrians, and then proceed when the way is clear.


#3. Proof of financial responsibility is needed:

The certificate or proof of liability insurance (paper or electronic) must be carried by the operator or be present in every motor vehicle operated within Idaho.


#4. You approach this road sign. What does it tell you?

Divided highway ends.

The divided road ends ahead. Two-way traffic will no longer be divided by a center island. You will be on an undivided roadway with two-way traffic. Watch out for oncoming cars.


#5. You need to pass a bicyclist ahead. Which is the best thing to do?

To increase the safety margin when passing a bicyclist, move into the left lane if possible. If you are not able to change lanes, pass with as much clearance as possible – a safe margin is at least three feet.


#6. When you drive at night, you should:

About 90 percent of driving choices are based on what you see. At night, your vision is reduced. To make sure you have time to react to danger, always drive slowly enough so you can stop within the distance you can see ahead. Increase the following distance between your vehicle and the one in front of you. Allow more distance and time for passing. Watch for slow-moving or unlighted vehicles, bicyclists, pedestrians, and animals.


#7. This hand signal means:

Right turn – left arm extended, with elbow bent upward, at about a 90-degree angle.


#8. When approaching a stationary emergency vehicle with flashing lights on a road with only one lane in each direction, you must:

When you are approaching an emergency or police vehicle that is stopped with lights flashing, you are required to immediately reduce your speed below the posted speed limit and proceed with caution. If you are traveling on a road with two or more lanes traveling in the same direction, you are also required to change lanes into a lane that is not adjacent to the emergency vehicle as soon as possible, if it is safe to do so.


#9. When approaching any curve on a narrow road where the view is obstructed, you should:

When driving in the mountains, you should stay close to the right edge of the road to be away from oncoming traffic. Sound the horn when approaching any curve on a narrow road where the view is obstructed.


#10. You can legally park and leave your car:

Parking is not allowed on a sidewalk or in front of a driveway.


#11. When taking drugs that are likely to affect your driving, you should:

Remember, it is illegal to drive under the influence of any drug which impairs your ability to drive safely. If you have to drive, you should avoid taking any drug that might hamper your ability to operate your vehicle.

When your doctor writes out a prescription, ask the doctor if it will make you drowsy or otherwise affect your driving. If so, let someone else drive while you are taking the drug.

Over-the-counter drugs include such things as pain relievers, lozenges, and cough and cold remedies. By law, these drugs must provide directions for use. Read the label. If driving is discouraged, don’t get behind the wheel.


#12. Freeways are usually safer than other kinds of roads because:

Freeways, interstates, expressways, and toll roads offer fast and efficient routes of travel. They are usually safer than other kinds of roads because they have one-way traffic, a limited number of entrances, and other special safety features.


#13. Two vehicles approach an uncontrolled T-intersection. One is on the through road, the other on the road that ends. Which vehicle should be given the right-of-way?

At an unmarked or uncontrolled three-way T-intersection, where you will have to turn either right or left. You must stop and/or yield to any drivers approaching on the through road from the other two directions.


#14. Trucks and buses have:

Large vehicles have serious blind spots or no-zones into which a car can disappear from view. These zones exist up to 20 feet in front of the cab, on either side of, particularly alongside the cab, and up to 200 feet in the rear.


#15. You see a distracted driver on their cell phone ahead of you. What should you do?

Allow extra room for people who may be distracted by something they are doing. For example:

  • Delivery men.
  • Construction workers.
  • Children playing.
  • Drivers who are talking, tending children, or looking at maps.
  • Tourists trying to figure out a complicated intersection.
  • Drivers looking for a house number.

#16. When you approach a school, you should:

Take extra care when driving in residential areas and school zones and at times and places where children are likely to be found near the roadway.


#17. What is this sign?

This is a regulatory Speed Limit sign. It shows the minimum speed you are allowed to travel.


#18. A child must be secured in an appropriate child-restraint system when:

Idaho law requires anyone carrying children 6 years of age or younger in a non-commercial motor vehicle to properly protect children in approved child car safety seats.

The law applies to cars manufactured with car safety belts after January 1, 1966.


#19. Before entering another roadway, you see this sign. What does it tell you?

Added lane sign. Two roadways are converging, but you are not required to merge. Watch for traffic in the left lane which may move into the right lane. Before moving into the left lane (if needed) check to make sure it is clear while signaling before changing lanes.


#20. When you see a sign with this shape and color, you must:

You must come to a complete stop before entering the intersection ahead. You are required to stop behind the stop line, or before entering the crosswalk on the near side of the intersection, or at the point nearest the intersecting highway where the driver has a view of approaching traffic on the intersecting highway before entering it.


#21. Which of the following can help you fight drowsy driving and highway hypnosis?

Freeway drivers often suffer highway hypnosis – drowsiness brought on by monotony and the drone of wind and tires. Keep shifting your eyes from one area of the roadway to another and focus them on various objects – near and far, left and right. Even reading road signs can help you stay awake. Do not rely on stay awake drugs or energy drinks. They can make your driving even more dangerous.


#22. Compared to other highway accidents, the chance of death or serious injury in a collision between a train and a motor vehicle is:

The chance of death or serious injury in a collision between a train and a motor vehicle is 40 times greater than for other highway accidents.


#23. A muffler cutout on a car is:

Not allowed: any muffler cut-out or bypass that makes the exhaust system amplify or increase noise.


#24. Which vehicle is best positioned for a left turn on this one-way street?

Give your signal and approach the intersection in the lane closest to the left that is open to traffic going your direction. If you are on a two-lane road, you should move to the left side of your lane. Yield the right of way to pedestrians and oncoming vehicles. When safe, turn into the nearest lane in which traffic moves the direction you want to go.

Do not cut the corner


#25. A center lane with yellow pavement markings on both sides is:

Shared center lanes are reserved for making left turns (or U-turns when they are permitted) but can be used by vehicles traveling in both directions. On the pavement, left-turn arrows for traffic in one direction alternate with left-turn arrows for traffic coming from the other direction. These lanes are marked on each side by solid yellow and dashed yellow lines.

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Facts about Your Idaho Driver’s Knowledge Tests

DMV Knowledge Test for Learner’s Permit and Driver’s License
  Number of questions on exam:40 questions
  Passing score:85 percent
  Correct answers to pass:34
  Allotted time to complete test:25 minutes
  Wait time before retest:3 days (Fee is required for each new test)

This Idaho Practice Test

This practice test is designed to help you study for and pass the knowledge examination for a Class D (Non-Commercial) license or instruction permit in Idaho.

It has 25 questions drawn from a large bank of DMV questions and answers. Each one is specific for the traffic laws in the state of Idaho. It is, however, shorter than the real knowledge test. It is recommended that you take at least a handful of tests to cover all items in the driver’s manual.

After each question, you will be shown the correct answer. In case your answer is incorrect, there is also a brief explanation to the correct answer. Use the explanation to look up more information in the Idaho Driver’s Manual.

Remember, the purpose of the real examination and this Idaho practice test is to check your knowledge of Idaho traffic laws, highway signs by shape and symbol, traffic signals, pavement markings, and equipment required on motor vehicles.

It is not designed to be a cheat sheet and it may not be inclusive of all questions asked on the official knowledge test. Be sure to always study the Idaho Driver’s Manual before taking the official test.

The practice test, however, help you prepare as much as possible and predict how likely you are to pass the real knowledge examination.

Idaho Driver's Handbook

1   Get the Driver’s Manual

Your first step is to get the latest version of the Driver’s Handbook from You should use the practice tests to verify your progress only after studying the manual. Do not use the practice test as a replacement for the manual.

You can find all questions and answers you need to pass the written test for a class D license or instruction permit in the Driver’s Manual. It remains your best friend when studying for your first instruction permit.

We help you pass your Idaho Knowledge Test

Aim for a High Score on Each Practice Test

The number of questions on the real test in Idaho is 40 and the passing score is 85%, which is higher than in many other states. Only Maryland and Virginia have higher passing scores

You must correctly answer 34 out of the 40 questions, which means you can only miss 6 of them. In combination with a poor designed test and a high passing score, Idaho knowledge test can be one of the hardest to pass, especially if you haven’t completed a classroom course.

This is why you should aim for the highest possible score on the practice tests. Take as many tests as you need, as often as you like.

On each test, you should make sure you truly understand why an answer is correct and why other options are incorrect.

Learn more about Risky Study Tactics .


Known Issues with the Idaho Knowledge Test

Idaho DMV tend to use four choices to each test questions. It is usually difficult to develop more than three plausible alternatives on a DMV test, which means that the fourth choice can be nonsense. This makes the test longer without making it better. On a lengthy test, it can be easy to skip reading all of the choices carefully enough.

Idaho DMV also has a disclaimer at the beginning of the test saying that there may be more than one correct answer and that you must select the best answer.

This is due to the fact that they still use “All of the above” as one alternative. In this type of question, all of the alternatives can be correct.

A nervous test taker may identify the first alternative as correct and read no further.

The same hold true for “Both of the above”.

Remember to always read through all choices. Often, all of the choices are actually correct – but not always!

You may also see “None of the above” as the last choice. This is also considered a bad testing design since it doesn’t check if you know what the correct answer is.

Even if it is less common, you may see a negative question that contains the word not or never. With such a question you must look for an incorrect statement. It is easy to forget this and pick the correct statement instead.

You can overcome these flaws by not rushing through the test, being alert, and make sure you read everything.

More about the Idaho Knowledge Test

The test is available in English, Arabic, Chinese, Farsi, French, Korean, Russian, Serbo-Croatian, Spanish, Vietnamese and ASL (American Sign Language).

It is a closed-book test, which means that you cannot use any kind aids (written, audio, or electronic) while taking the exam.

If you fail the knowledge examination, you must wait at least three days before you can take it again. A new fee is required each time you attempt the test.

Who Must Take the Idaho Knowledge Test?

All new drivers applying for an original driver’s license must pass the knowledge exam.

If you are under 17 years, you must successfully complete a driver training program and comply with the requirements of the Graduated Driver Licensing (GDL) Program. After the supervised instruction period, you must take and pass the written knowledge test before receiving your driver’s license.

If you are 17 years or older, the GDL requirements don’t apply. You start the application process by taking the written knowledge test and a vision screening at a county sheriff’s office.

When transferring from another state, U.S. Territory, or the District of Columbia, you must pass a Class D written knowledge test, even if you have been licensed in Idaho before. Unlike many other states, the written DMV test is not waived for drivers who hold an out-of-state driver’s license.

You must also pass all tests if you hold a foreign driver’s license.

If you let your Idaho Driver’s license expire for 25 months or more, you must also take the knowledge test again.

Idaho Graduated Driver’s License (GDL) program

Anyone under 17 years who applies for their first driver’s license in Idaho must successfully complete an approved driver’s training program and comply with the requirements of the GDL Program.

Unlike other states, Idaho does not require you to pass the written test before issuing a permit under this program (the test comes later).

The first permits are known as the Driver Training (DT) permit and the Supervised Instruction Permit (SIP). They allow anyone at least 14 1/2 years and under 17 years of age to attend any public school or private driver’s training program. You must have your DT permit before taking any DT class.

The training program consists of a required 1,800 minutes (30 hours) of classroom instruction, 360 minutes (6 hours) of in-car observation in a DT car, and 360 minutes (6 hours) of behind the wheel driving with a DT instructor.

While you are enrolled in a training class, the DT permit allows you to drive only while supervised by a training instructor. When you have successfully completed the program, the instructor will release the permit and it know becomes a Supervised Instruction Permit.

In this next phase, you can practice your driving skills when accompanied by any licensed driver who is at least 21 years and who is occupying the front seat beside you (no other passengers are allowed in the front seat).

While You Hold an Idaho Supervised Instruction Permit

You cannot drive alone. You must always be supervised by an adult at least 21 years with a valid driver’s license.

All passengers must wear seat belts or child restraints. Only the supervising driver can sit beside you in the front seat.

You must observe all laws regarding alcohol and other intoxicating substances.

You must complete a minimum 6-month, violation-free supervised instruction period and log at least 50 hours of driving practice. 10 of these 50 hours must be at night.

If you are convicted of violating any traffic laws while you practice driving under this program, the SIP will be canceled. After a cancellation, you must reapply for a new SIP. The 6-month period of supervised driving starts over again.

Idaho Driver's License

Only after meeting all of these requirements under GDL will you be allowed to take the Idaho knowledge test.

If you pass the knowledge test, you can schedule your road skills test.

After passing all tests, DMV will issue an Idaho Driver’s License.

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