CCC Exam Questions with Correct Answers

CCC Exam Questions with Correct Answers Corrosion should be removed from magnesium parts with a - Answer-stiff, nonmetallic brush Corrosion caused by galvanic action is he result of - Answer-Contact between two unlike metals Fayed surfaces cause concern in chemical cleaning because of the danger of - Answer-Entrapping corrosive materials Galvanic corrosion is likely to be most rapid and severe when - Answer-The surface area of the anodic metal is smaller then the surface area of the cathodic metal Which of these materials is the most anodic? - Answer-Magnesium When an anodized surface coating is damaged in service, it can be partially restored by - Answer-Chemical surface treatment The rust or corrosion that occurs with most metals is the result of - Answer-A tendency for them to return to their natural state Inter granular corrosion in aluminum alloy parts - Answer-Cannot always be detected by surface indications Which of the listed conditions is NOT one of the requirements for corrosion to occur? - Answer-The presence of an oxide film For which of the following reasons would a water break test be conducted - Answer-To make certain that a bare metal surface is thoroughly clean One way of obtaining increased resistance to stress corrosion cracking is by - Answer-Creating compressive stresses on the metal surface. Shot peening