Texas Driver's License Knowledge TestTraffic Laws and RegulationsMedium

A driver is operating a vehicle in Texas. Which of the following is a mandatory piece of vehicle equipment according to Texas law?

  1. AA working horn that can be heard for at least 200 feet.
  2. BA spare tire in good condition.
  3. CA first-aid kit readily accessible in the vehicle.
  4. DFog lights for improved visibility in adverse weather.
Show answer & explanation

Correct answer: A. A working horn that can be heard for at least 200 feet.

Texas law requires all motor vehicles to be equipped with a horn that is audible for at least 200 feet. While other items might be useful, they are not universally mandatory by law.

Why the other options are wrong

  • B. A spare tire is recommended but not legally mandatory equipment in Texas.
  • C. A first-aid kit is good practice but not a legally required item.
  • D. Fog lights are optional equipment, not mandatory.

Mandatory Vehicle Equipment (Horn)

Texas law requires all motor vehicles to have a horn that is audible under normal conditions for at least 200 feet.

  • Required for all motor vehicles.
  • Must be audible at 200 feet.
  • Used for warning other drivers or pedestrians.

Memory trick: Lights, Brakes, Horn, Mirror, Muffled, Wipers, and Glass, make your car pass!

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