Why is checking that the horn works part of a pre-trip inspection?

Pick an answer

1. It's checked so passengers can be greeted on boarding
2. It matters mainly for city driving, not for highway trips where horns are rarely used, which surprises a lot of drivers new to inspection
3. The horn is the only way to warn another driver of an immediate hazard when there's no time for anything else
4. A working horn is required only for vehicles under 10,000 pounds

Correct!

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