Engine : Motor Plants and Auxiliary Boilers - 1455/947
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| Sacrificial zinc anodes are used on the salt water side of diesel engine heat exchangers to __________. |
| A) reduce electrolytic action on heat exchanger metals |
| B) provide a protective coating on heat exchanger surfaces |
| C) keep heat transfer surfaces shiny and clean |
| D) prevent rapid accumulation of marine growth |
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