How many IQIs are required for joints over 10 inches?

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Study for the CSA Welded Steel Construction – Metal Arc Welding (W59) Welding Inspector Level 1 Test. Prepare with flashcards and multiple choice questions, each with hints and explanations. Get ready for your exam!

Multiple Choice

How many IQIs are required for joints over 10 inches?

Explanation:
Longer welds can have variations in exposure and material characteristics along their length, so the radiographic setup must verify sensitivity at more than one location. Using two IQIs provides independent checks of film density and signal response at different sections of the weld, helping ensure flaws would be detectable throughout the joint. A single IQI could miss inconsistencies, while using more than two isn’t required by this guideline. Therefore, two IQIs are required for joints longer than 10 inches.

Longer welds can have variations in exposure and material characteristics along their length, so the radiographic setup must verify sensitivity at more than one location. Using two IQIs provides independent checks of film density and signal response at different sections of the weld, helping ensure flaws would be detectable throughout the joint. A single IQI could miss inconsistencies, while using more than two isn’t required by this guideline. Therefore, two IQIs are required for joints longer than 10 inches.

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