Question

As a general rule, weld discontinuities detected by ultrasonic testing are accepted or rejected on the basis of:

a) Vertical linearity
b) Time base analysis
c) Horizontal response data
d) Noise to signal ratio
e) Signal amplitude

Answer 1

Weld discontinuities detected by ultrasonic testing are typically accepted or rejected based on the signal amplitude reflected from the discontinuity.

Step-by-step explanation:

As a general rule, weld discontinuities detected by ultrasonic testing are accepted or rejected on the basis of signal amplitude. Ultrasonic testing is a nondestructive testing method used in various industries to detect flaws, measure thickness, and ensure material integrity without damaging the object. When an ultrasonic wave reflects off a discontinuity within the material, the resulting signal's amplitude, when compared to reference levels, is used to determine whether the discontinuity is acceptable or if it should be rejected. For instance, a high amplitude reflection might indicate a significant flaw, and thus the part would be rejected based on predefined thresholds.