Q3. a) Briefly explain the term metal fatigue and further explain how fatigue failure occurs. (4)
b) State the difference between high stress/low cycle and low stress/high cycle fatigue giving example of each. (4)
c) State how defects in the metal can influence the expected safe life of a component. (4)
d) State how fuel injection timing and cylinder power balance influence the possibility of fatigue cracks developing in the bedplate. (4)
---Previously Asked As---
2023/NOV/01 - 2024/OCT/02 - 2025/DEC/09
Q9. a) Explain metal fatigue and how fatigue failure occurs. (4)
b) Differentiate between high stress/low cycle and low stress/high cycle fatigue giving example of each. (4)
c) How do defects in the metal influence the expected life of a component. (4)
d) How does fuel injection timing and cylinder power balance influence the possibility of fatigue cracks developing in the bedplate. (4)
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