What is NDI?

What is NDI?

• A. Non-Deterministic Index
• B. Negative Destructive Inspection
• C. Non-Destructive Inspection
• D. New Design Implementation

Answer: (C)

NDI stands for Non-Destructive Inspection. It refers to tests and examinations that evaluate a component’s condition without causing damage or altering its usability. This approach lets you detect flaws such as cracks, corrosion, wear, or other defects while the part remains in service, so you can decide whether maintenance is needed without destroying the part. Common methods include visual inspection, ultrasonic testing, radiography, eddy current, magnetic particle, and dye penetrant testing. Other options drift into unrelated ideas—non-deterministic concepts, destructive methods, or design changes—so they don’t fit the term that describes evaluating integrity without damage.

NDI stands for Non-Destructive Inspection. It refers to tests and examinations that evaluate a component’s condition without causing damage or altering its usability. This approach lets you detect flaws such as cracks, corrosion, wear, or other defects while the part remains in service, so you can decide whether maintenance is needed without destroying the part. Common methods include visual inspection, ultrasonic testing, radiography, eddy current, magnetic particle, and dye penetrant testing. Other options drift into unrelated ideas—non-deterministic concepts, destructive methods, or design changes—so they don’t fit the term that describes evaluating integrity without damage.