Texas State Inspection Practice

Which of the following reasons will lead to a rejection of the horn?

1. Belt buckles are loosed or inoperative.

2. Front lap seat belts are required and not present.

3. Unreasonably loud, harsh sound, whistle

4. Seat belt webbing is frayed, split, or torn.

The correct answer is: Unreasonably loud, harsh sound, whistle

The reason that will lead to a rejection of the horn is related to the sound it produces. If the horn emits an unreasonably loud, harsh sound or a whistle, it may not meet the necessary safety standards established for vehicles. Vehicle horns must produce a sound that is not only effective for alerting other road users but is also within acceptable decibel levels and sound quality. A horn that is excessively loud or produces a non-standard sound could potentially be a distraction or safety risk, and therefore, it fails to meet the criteria for proper operation and function. Other considerations like seat belt conditions or issues related to buckles pertain more specifically to occupant safety and are part of different inspection standards, making them less relevant to a horn's functionality. Each component's criteria are distinct, with the horn specifically needing to meet sound regulations as part of its operational assessment.