What causes iron to rust and how is rust detected

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Reference no: EM133337679

Question:

Response and Short Answers are required for this unit.

Knowledge test

1. A steel hull has thick rust deposits under the rose (strainer) at the sea suction. How would you determine the extent of this rust?

2. Above the water line, timbers can be affected by dry rot and wet rot.

Both are caused by :

The only cure is to:

3. Fibre glass is subject to its own form of deterioration which causes delamination within the fibre glass and is called

4. Name the three types of electro-chemical corrosion

5. What causes iron to rust and how is rust detected?

6. How is the anchor inspected? What deterioration are you looking for during the inspection?

7. How is watertightness of a hatch determined during the survey?

8. When is an out of water survey conducted?

9. Why would an ullage test be taken in a survey?

10. Identify and explain the two main types of Hull.

Reference no: EM133337679

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