Gas Turbines USCG Q#501 (Set 8)

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

Official USCG Answer & Rule Citation

Correct Answer: Option C — Root

Tip clang occurs when excessive vibration or thermal expansion causes the blade tips to contact the casing. While the tip sustains the initial impact, the resulting shock loads are transmitted directly to the blade root, which is the most highly stressed area, often leading to root fatigue and failure.

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All Gas Turbines Sets Practice Set 8