If the same examination type is to be performed on both sides of a joint, where must the letter designation appear?

If the same examination type is to be performed on both sides of a joint, where must the letter designation appear?

• A. On both sides
• B. On one side
• C. Only on the tail
• D. Only on the reference line

Answer: (A)

When the same examination type is used on both sides of a joint, the letter designation must appear on both sides of the joint symbol. This makes it explicit that both sides were inspected with that method, preventing any ambiguity in the records or interpretations later on. If the designation were shown on only one side, it could be misread as indicating only one side was examined. Marking on the tail or only on the reference line would not clearly communicate bilateral inspection according to standard marking practice, so placing the designation on both sides is the correct approach.

When the same examination type is used on both sides of a joint, the letter designation must appear on both sides of the joint symbol. This makes it explicit that both sides were inspected with that method, preventing any ambiguity in the records or interpretations later on. If the designation were shown on only one side, it could be misread as indicating only one side was examined. Marking on the tail or only on the reference line would not clearly communicate bilateral inspection according to standard marking practice, so placing the designation on both sides is the correct approach.