What is N.D.T.?

• A. Destructive testing
• B. Structural testing
• C. Nondestructive testing
• D. Materials testing

Answer: (C)

Nondestructive testing means inspecting a part’s condition without causing damage or changing its usability. In turbine engine maintenance, NDT lets you detect cracks, corrosion, or other flaws while the component remains in service, so you can address issues without sacrificing the part. The goal is to identify problems without harming the piece, which is why this choice is distinct from destructive testing (which damages the part), structural testing (which evaluates how a part handles loads), and materials testing (which often involves assessing material properties that may require altering or destroying a sample). The term that fits this description is nondestructive testing.