FAA AMT (Aviation Maintenance Technician) Airframe Practice Exam

How can proper wing twist in a sheet metal constructed wing be checked?

1. With a ruler and visual inspection

2. Using an electronic angle finder

3. Through computational modeling

4. Bubble level and special fixtures described by the manufacturer

The correct answer is: Bubble level and special fixtures described by the manufacturer

Proper wing twist in a sheet metal constructed wing can be checked using a bubble level and special fixtures described by the manufacturer. This method ensures accurate measurement and alignment of the wing twist to meet the manufacturer's specifications. Using a bubble level helps in determining if the wing is level, while the special fixtures provided by the manufacturer guide in the correct positioning of the wing during the inspection process. This method is necessary to maintain the aerodynamic performance of the aircraft and ensure safe flight operations. Visual inspection alone (Option A) may not provide the precise measurements needed to check the wing twist accurately. An electronic angle finder (Option B) may not be specific enough for the task of checking wing twist. Computational modeling (Option C) is a sophisticated method but may not be practical for routine maintenance checks on sheet metal constructed wings.