Engine Gas Turbines (Supplementary) USCG Question #198 (Set 6)

When tip clang takes place on a GTE, the major damage occurs to what area of the blade?

Official USCG Answer & Rule Citation

Correct Answer: Option C — Root

Tip clang occurs when the blade tip contacts the casing, causing a momentary deceleration. The resulting inertial force is transmitted through the blade to the root attachment. This shock load frequently causes deformation or cracking at the root, which is the most highly stressed area of the blade assembly.

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