MRO Business Practice Exam

Ultrasonic Non-Destructive Testing (NDT) does have accessibility limitations, which can pose a disadvantage in its application. This technique requires a medium to conduct sound waves, which means it may not be suitable for all types of materials or geometries. For instance, if the surface of the material is rough, or if there are complex shapes or configurations, it becomes challenging to effectively couple the ultrasonic transducer to the surface, leading to potential inaccuracies in detecting flaws. Additionally, in some environments, the physical accessibility to the component or structure being tested might hinder the effective use of ultrasonic methods.

In contrast, aspects like low cost and minimal training are actually advantages of ultrasonic NDT. The technique tends to be more affordable compared to some other NDT methods, and while it does require training, relatively minimal training in comparison to more complex methods makes it accessible for many technicians. Moreover, ultrasonic NDT does not use radiation, which avoids the health risks associated with radiographic NDT methods. Thus, the correct identification of accessibility limitations highlights a critical aspect of using ultrasonic NDT in diverse applications.