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Question

Q3. Fatigue is one of the main causes of crankshaft failure.

A. Indicate on a sketch the most likely location of a fatigue crack. (4)

B. Explain how a fatigue failure is identified. (4)

C. Describe how a fatigue crack may be initiated. (4)

D. Describe, with the aid of sketches, the methods used to inhibit fatigue cracks. (4)

Asked in Year/Month/Ques No.