MDE 10 Q7

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Question: Which of the following are indications that lubricating oil is suffering from microbial degradation? (Select FOUR)

G) Formation of water droplets in the oil

C) Increase in oil viscosity

E) Sudden drop in oil level

F) High oil pressure

A) Presence of sludge in the oil

D) Discoloration of the oil

B) Unusual or foul odor from the oil

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Question: Upon detecting the early signs of microbial degradation in the main engine lubricating oil, which TWO actions should be taken?

B) Add a biocide to the lubricating oil

E) Increase the oil's operating temperature

C) Immediately replace the lubricating oil

A) Increase the engine load to burn off the microbes

F) Switch to a different grade of lubricating oil

D) Monitor the oil condition more frequently

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