FAA AMT (Aviation Maintenance Technician) Airframe Practice Exam

The overlap is determined by the width of the damaged area. Since the rivets are a quarter inch in diameter, the minimum overlap would be a quarter inch on each side. This would add up to a total of 1/2 inch. However, in order to ensure a secure repair, it is recommended to double the minimum overlap. Therefore, the minimum allowable overlap for a double row of 1/8-inch rivets is 13/16 inch, making option C the correct answer. Option A is incorrect because it does not account for the additional overlap from the double row of rivets. Option B is incorrect because it is less than the minimum overlap required. Option D is incorrect because it is more than the minimum overlap required, adding unnecessary weight to the aircraft.