Class 4 (4th Engineer) MEKG 📅 Oct 2024

Exam Question

The by-products of oxidation, as a result of water contamination of hydraulic oil, are generally (16)

(a) Removed by cellulose type filters

(b) Gums, varnishes, and acids

(d) Harmless and have no effect on system components

Briefly justify vour answer.

Reference Answer

### Correct Answer
(b) Gums, varnishes, and acids
### Justification
This answer receives full marks for correctly identifying the by-products and providing a detailed, surveyor-grade justification explaining the chemical process and its detrimental effects on hydraulic systems, while also systematically disproving the incorrect options based on sound engineering principles.

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