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EOOW EKs – EOOW SECTION C – GENERAL ENGINEERING KNOWLEDGE : 2025/OCT/04

Question

Q4. With reference to Main Engine Lubricating Oil:

a) Explain what is meant by microbial degradation. (4)

b) State SIX indications that could be observed if the oil was suffering from microbial degradation (2)

c) Describe TWO actions that should be taken on detecting the early start of microbial degradation. (2)

d) State FOUR precautions that need to be taken to help prevent such occurrence. (4)

Asked in Year/Month/Ques No.

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