Why is jacket cooling water kept treated with chemical inhibitors in marine diesel engines?
Direct Answer
Option C: Prevent corrosion, cavitation, and scale formation inside cooling water passages
Chemical inhibitors are added to jacket cooling water systems to passivate metal surfaces, preventing electrochemical corrosion, cavitation erosion, and mineral scale deposition. Maintaining proper chemical balance protects cylinder liners and engine blocks from premature degradation.
All Options
Detailed Explanation & Context
Chemical inhibitors are added to jacket cooling water systems to passivate metal surfaces, preventing electrochemical corrosion, cavitation erosion, and mineral scale deposition. Maintaining proper chemical balance protects cylinder liners and engine blocks from premature degradation.
Relevant Framework: STCW 2010 Manila Amendments • DG Shipping E-Learning & Exit Exam Standards • Marine Engineering Knowledge (MEK).
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