What tool is typically used to check proper wing twist in a sheet metal constructed wing?

The correct choice involves utilizing a bubble level along with special fixtures as specified by the manufacturer to check for proper wing twist in a sheet metal constructed wing. This method is effective because it allows for precise measurements and aligns with the specific design and engineering specifications of the wing structure. The use of fixtures ensures that measurements are taken in a consistent manner, maintaining accuracy throughout the assessment process.

The bubble level provides a clear indication of any deviation from the intended angle, allowing technicians to identify if the wing twist falls within allowable limits as outlined in the manufacturing instructions. It is important to adhere closely to manufacturer specifications, as wings are engineered to strict tolerances for performance and safety.

Other tools and instruments like a torque wrench, inclinometer, or laser level may serve different purposes in aircraft assembly and maintenance, but they are not specifically designed for assessing wing twist as effectively as the combination of a bubble level and manufacturer-specified fixtures. Their functionalities do not align directly with the unique requirements of checking wing twist, making them less suitable for this specific application.