In order to prevent galvanic corrosion, an...

Question 1 / 2066636eec28f7522a1c51c963

Question 1 of 2066636eec28f7522a1c51c963

In order to prevent galvanic corrosion, an aluminum boat must be insulated from the davits and gripes. Which of the following is acceptable as an insulator?

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Question 1 of 20

66636eec28f7522a1c51c963

In order to prevent galvanic corrosion, an aluminum boat must be insulated from the davits and gripes. Which of the following is acceptable as an insulator?

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🔍 Key Concepts

• Galvanic corrosion between dissimilar metals • Properties of good electrical insulators in a marine environment • Effects of water absorption on insulating materials

💭 Think About

• Which material will stay non-conductive even when wet and under heavy compression between metal parts? • Which options are more likely to absorb water or stay damp and salty, creating a path for electric current? • Think about long-term durability: which material can resist rot, swelling, and breakdown at sea?

✅ Before You Answer

• Check which materials are non-porous and do not absorb water • Check which material is commonly used as a structural insulator between metals on ships • Eliminate materials that can hold moisture or rot, as they become partially conductive over time

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Question 1 of 20

In order to prevent galvanic corrosion, an aluminum boat must be insulated from the davits and gripes. Which of the following is acceptable as an insulator?

Hard rubber

Canvas

Leather

Sponge rubber

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