Heavy Duty Equipment Technician Red Seal Exam Prep · Question
Which type of contamination can lead to etching and pitting of hydraulic component surfaces, as well as degradation of seals and fluid additives?
Water contamination can cause chemical reactions that lead to corrosion (etching and pitting) of metal surfaces, deplete fluid additives, and degrade elastomeri
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Question: Which type of contamination can lead to etching and pitting of hydraulic component surfaces, as well as degradation of seals and fluid additives?
Answer options:
- Silica particles
- Metallic wear particles ✅ Water content in the fluid
- Air entrainment
Correct answer: Water content in the fluid
Explanation: Water contamination can cause chemical reactions that lead to corrosion (etching and pitting) of metal surfaces, deplete fluid additives, and degrade elastomeric seals, significantly shortening component and fluid life.
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