ultrasonic test

This document discusses ultrasonic testing as a type of non-destructive testing. It describes how ultrasonic testing uses high frequency sound energy to examine materials and make measurements. There are two main types of ultrasonic testing: pulse echo and through transmission. Angle beam ultrasonic testing is the most commonly used technique as it can test for flaws that are not oriented parallel to surfaces, such as those found in welds. The document also includes multiple choice questions about ultrasonic testing terms and techniques.