Which value represents the radiography joint efficiency for full radiography?

Which value represents the radiography joint efficiency for full radiography?

• A. 0.85
• B. 0.70
• C. 1.00
• D. 0.95

Answer: (C)

Joint efficiency in radiographic nondestructive examination reflects how much of the weld’s integrity is assumed based on the NDE carried out. When full radiography is used, the entire weld is inspected, providing complete coverage and assurance that flaws would be detected across the whole length. That means the efficiency is at its maximum, representing 100% coverage of the weld. In this sense, the radiography joint efficiency for full radiography is 1.00. If the inspection only covers part of the weld, the efficiency would be less than 1.0, reflecting the reduced confidence in flaw detection for the uninspected portions.

Joint efficiency in radiographic nondestructive examination reflects how much of the weld’s integrity is assumed based on the NDE carried out. When full radiography is used, the entire weld is inspected, providing complete coverage and assurance that flaws would be detected across the whole length. That means the efficiency is at its maximum, representing 100% coverage of the weld. In this sense, the radiography joint efficiency for full radiography is 1.00.

If the inspection only covers part of the weld, the efficiency would be less than 1.0, reflecting the reduced confidence in flaw detection for the uninspected portions.