Corrosion Protection: [Question of the Day] 2011-03-（05-06）（Saturday, Sunday）
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This post was last edited by Litaotao1314 on 2011-3-6 22:46. Multiple-choice question: Which of the following statements is incorrect? ( ) A. Electrochemical corrosion of metals is more common than chemical corrosion； B. Using aluminum rivets to fasten iron plates; the iron plates are prone to corrosion ； C. Steel is not easily corroded in dry air ； D. Protect the hull by using sacrificial zinc blocks. Remarks: 1) As a newcomer, I hope everyone will give me your support; some basic things would be helpful ； There must be a reward for participants ； 2) Please hide your reply answers; the method to do this is: http://bbs.hcbbs.com/thread-492556-1-1.html. Do not edit your reply after posting it. 3) The answer is as follows. Answer: B. In a galvanic cell composed of aluminum and iron, aluminum acts as the negative electrode and is more prone to corrosion.
Reply 1# Litaolao1314 B
A. Electrochemical corrosion of metals is more common than chemical corrosion；
Reply 8# ztr2010 B
C. Iron plates are riveted using aluminum rivets; the iron plates are prone to corrosion