Wire brushing and scraping can be used to...

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Question 1 of 2066636eef28f7522a1c520502

Wire brushing and scraping can be used to remove hard carbon deposits from exhaust system surfaces. When cleaning exhaust systems associated with the diesel engines on the tug to which you are assigned, what technique can effectively be used in conjunction with mechanical cleaning to loosen and soften up these hard carbon deposits?

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🔍 Key Concepts

• Safety and toxicity of solvents used in engine rooms • How penetrating solvents work on carbon and varnish deposits • Risks of using abrasive blasting or high heat near fuel and exhaust components

💭 Think About

• Which option would realistically be approved for routine use inside a tug’s engine room without creating serious health or fire hazards? • Which method is commonly used by mechanics to help loosen carbon before or after wire brushing, and does not excessively damage metal surfaces? • Think about which choices are outdated or known to be particularly dangerous chemicals that modern procedures avoid.

✅ Before You Answer

• Eliminate any method known to use highly toxic or carcinogenic solvents in confined spaces • Eliminate methods that are overly abrasive and likely to damage exhaust components • Select a technique that is compatible with manual wire brushing/scraping and helps soften carbon rather than burn or blast it away

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