When preparing to back under a trailer, which alignment is correct?

When preparing to back under a trailer, aligning directly in front of the trailer is the correct approach. This alignment ensures that the truck's fifth wheel is positioned properly to make contact with the trailer's kingpin. By backing directly in line with the trailer, the driver can accurately gauge the position of the truck in relation to the trailer and make necessary adjustments as needed. This position also allows for better visibility of the trailer's position, increasing safety and reducing the likelihood of misalignment or accidental contact with other vehicles or objects.

Maintaining this alignment helps in achieving a smooth and controlled coupling process, allowing the driver to ensure that the fifth wheel locks onto the kingpin securely. Proper alignment is crucial for safe maneuvering and preventing damage to both the truck and trailer during the backing process.