In the lug nut torque scenario, which statement is correct?

In the lug nut torque scenario, which statement is correct?

• A. Both Technician A and Technician B
• B. Technician A only
• C. Technician B only
• D. Neither Technician A nor Technician B

Answer: (A)

Lug nut torque must match the vehicle manufacturer’s specification, and the wheel needs to be pulled evenly onto the hub. The right approach uses a calibrated torque wrench to reach the exact value, tightening in a star or criss-cross pattern so each lug nut seats the wheel flatly against the hub. After the wheel is on, re-checking the torque ensures nothing settled or came loose during initial seating. If both technicians followed these steps—setting the wrench to the specified torque, applying in the correct pattern, and re-checking as required—then both did the job correctly. Even if one started with an impact or used different tools for the initial pass, as long as the final torque on all lug nuts matches the spec and the wheel is properly seated, the installation is acceptable. The reason other approaches would be less reliable is if a lug nut was left at an incorrect value, if the pattern wasn’t followed (risking uneven seating), or if there was no final torque check after installation. Those issues can lead to wheel loosening or uneven mounting, which is why the emphasis is on following the specified torque with proper technique.

Lug nut torque must match the vehicle manufacturer’s specification, and the wheel needs to be pulled evenly onto the hub. The right approach uses a calibrated torque wrench to reach the exact value, tightening in a star or criss-cross pattern so each lug nut seats the wheel flatly against the hub. After the wheel is on, re-checking the torque ensures nothing settled or came loose during initial seating.

If both technicians followed these steps—setting the wrench to the specified torque, applying in the correct pattern, and re-checking as required—then both did the job correctly. Even if one started with an impact or used different tools for the initial pass, as long as the final torque on all lug nuts matches the spec and the wheel is properly seated, the installation is acceptable.

The reason other approaches would be less reliable is if a lug nut was left at an incorrect value, if the pattern wasn’t followed (risking uneven seating), or if there was no final torque check after installation. Those issues can lead to wheel loosening or uneven mounting, which is why the emphasis is on following the specified torque with proper technique.