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Ironworking
Ironworker Red Seal Certification
Drawings, Codes & Inspection
Verificación de conocimientos
Drawings, Codes & Inspection
Verificación de conocimientos
Verificación de conocimientos
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What is 'ultrasonic testing' (UT) for structural welds and what types of defects does it reliably detect?
A
UT uses high-frequency sound waves to detect internal planar defects such as cracks, lack of fusion, and incomplete penetration; it is particularly good at detecting tight planar defects that RT may miss
B
UT applies magnetic particles to detect subsurface defects up to 1/4 inch below the surface
C
UT measures the ultrasonic noise produced during welding to detect porosity in real time
D
UT uses ultraviolet light to detect surface cracks in welds
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