Practice question

What should be checked regarding the top of the tire?

  1. Must have uneven wear
  2. At least 4/32" on non-steering tires
  3. No uneven wear and at least 2/32" on non-steering tires
  4. Be completely flat

Answer: C — No uneven wear and at least 2/32" on non-steering tires

The condition of the tire, particularly at the top, is crucial for safe vehicle operation. A tire should not exhibit uneven wear, as this can indicate alignment problems or issues with the suspension system, which could lead to handling difficulties or tire blowouts. Additionally, having at least 2/32" of tread depth on non-steering tires is essential for maintaining traction, especially in wet conditions. This depth helps to ensure that water can be channeled away from the tire's contact patch, reducing the risk of hydroplaning. Regularly checking for both proper tread depth and uniform wear helps safeguard the vehicle's performance and extends tire life, making this option the most accurate and significant in the context of the pre-trip inspection.

Practice more: CDL Pre-trip Inspection Practice Exam →