Traffic Laws

Study questions with answers

12 sample Traffic Laws questions with the correct answer, a short explanation, and the official handbook reference. Read through them, then take the quiz above.

1. 1. A child must ride in an approved car seat or booster until reaching:

   Correct answer: Age 8 or 4 feet 9 inches tall

   Children must use a car seat or booster until age 8 or a height of 4 feet 9 inches, whichever comes first.

   Source: Michigan: What Every Driver Must Know - Protecting children (Ch. 4)

2. 2. When you enter a roundabout, you must:

   Correct answer: Yield to traffic already in the circle

   At a roundabout, entering drivers yield to the traffic already circulating counterclockwise and to any pedestrians or bicyclists.

   Source: Michigan: What Every Driver Must Know - Roundabouts (Ch. 4)

3. 3. You do NOT have to stop for a school bus with flashing red lights when:

   Correct answer: It is across a divided highway with a barrier

   You are not required to stop when the bus sits on the far side of a road split by a physical barrier, like a median or island.

   Source: Michigan: What Every Driver Must Know - School buses (Ch. 4)

4. 4. Unless posted otherwise, the speed limit on streets that are not freeways is:

   Correct answer: 55 mph

   Michigan sets a default limit of 55 mph on non-freeway streets and highways unless signs indicate otherwise.

   Source: Michigan: What Every Driver Must Know - Speed limits (Ch. 4)

5. 5. It is illegal to leave a child unattended in a vehicle in Michigan when the child is:

   Correct answer: Younger than 6 with no one 13 or older present

   The law forbids leaving a child under 6 alone in a vehicle when that creates an unreasonable risk, unless someone at least 13 is supervising.

   Source: Michigan: What Every Driver Must Know - Children left unattended (Ch. 4)

6. 6. When you pass another vehicle on a two-lane road, you must return to your lane:

   Correct answer: Before you are within 200 feet of oncoming traffic

   You have to be back in your lane before you come within 200 feet of any oncoming vehicle.

   Source: Michigan: What Every Driver Must Know - Passing on the left (Ch. 4)

7. 7. Under Michigan's general cell phone law, drivers may not:

   Correct answer: Hold or use a phone while driving

   The law bars all drivers from holding or using a phone or tablet while driving on a public road, including calls, texts, and social media.

   Source: Michigan: What Every Driver Must Know - Cell phone use (Ch. 4)

8. 8. When a school bus ahead has its red overhead lights flashing, you must stop at least:

   Correct answer: 20 feet from the bus

   You must stop no closer than 20 feet from a school bus showing flashing red lights as it loads or unloads riders.

   Source: Michigan: What Every Driver Must Know - School buses (Ch. 4)

9. 9. Passing another vehicle is prohibited when you are within:

   Correct answer: 100 feet of an intersection or a rail crossing

   You may not pass within 100 feet of an intersection or a railroad crossing.

   Source: Michigan: What Every Driver Must Know - When passing is prohibited (Ch. 4)

10. 10. Flashing green lights on a road agency's maintenance vehicle tell drivers to:

    Correct answer: Slow down and use caution

    Green lights on state and local maintenance vehicles signal active road work, meaning slow down and drive carefully.

    Source: Michigan: What Every Driver Must Know - Maintenance vehicles (Ch. 4)

11. 11. In Michigan, front-seat occupants of a moving car must:

    Correct answer: Wear a seat belt

    State law requires every front-seat occupant, including the driver, to buckle up.

    Source: Michigan: What Every Driver Must Know - Buckle up (Ch. 4)

12. 12. Where must a child younger than age 4 ride when the vehicle has a back seat?

    Correct answer: In the rear seat

    Children under 4 must be secured in the rear seat if the vehicle has one; the front is allowed only when all rear seats are filled with other young children.

    Source: Michigan: What Every Driver Must Know - Protecting children (Ch. 4)