{"id":3178,"date":"2024-08-06T10:00:45","date_gmt":"2024-08-06T10:00:45","guid":{"rendered":"https:\/\/svestudy.com\/?page_id=3178"},"modified":"2025-05-12T19:20:25","modified_gmt":"2025-05-12T19:20:25","slug":"mde-unit-20-q6","status":"publish","type":"page","link":"https:\/\/svestudy.com\/?page_id=3178","title":{"rendered":"MDE Unit 20 Q6"},"content":{"rendered":"\n
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Quiz<\/a><\/p>\n<\/div>\n\n\n\n

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Next Unit<\/a><\/p>\n<\/div>\n<\/div>\n\n\n\n

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(a) State how gearbox oil may become contaminated with water.(1)
(b) Explain the effects of water contamination of gearbox oil.(5)
(c) Describe the actions to be taken should a gearbox become contaminated with water.(4)<\/p>\n\n\n

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Water Contamination in Gearbox Oil<\/p>\n\t\t\t

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Water contamination in gearbox oil can lead to severe damage. Here are the primary ways water can enter the system:<\/p>\n\n\n\n

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  1. Condensation:<\/strong> In humid environments, water can condense within the gearbox as it cools, especially during idle periods or when the vessel is not in use.<\/li>\n\n\n\n
  2. Leaking Seals:<\/strong> Damaged or worn seals on the gearbox housing can allow seawater ingress.<\/li>\n\n\n\n
  3. Cooling System Interaction:<\/strong> In some cases, where the gearbox oil cooler shares a common seawater circuit, leaks or faulty heat exchangers can introduce seawater.<\/li>\n\n\n\n
  4. Washing Procedures:<\/strong> Improper washing of the gearbox or its components can introduce water.<\/li>\n\n\n\n
  5. Engine Cooling Water Intrusion:<\/strong> In rare cases, a cracked engine block or cylinder head gasket can allow coolant (containing water) to enter the crankcase and subsequently the gearbox.<\/li>\n<\/ol>\n\n\n\n

    It’s crucial to regularly inspect gearbox oil for signs of water contamination and take corrective actions to prevent damage.<\/p>\n\n<\/div>\n\t\t<\/div>\n\n

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    Effects of Water Contamination in Gearbox Oil<\/p>\n\t\t\t

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    Water contamination in gearbox oil can have severe consequences:<\/p>\n\n\n\n