Which of the following is an example of cathodic protection of metals

1.	Which of the following is an example of cathodic protection of metals against corrosion ?
A.	Painted steel
B.	Galvanised iron
C.	Case hardened steel
D.	Lead lined reactor
Answer» C. Case hardened steel

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Which of the following is an example of cathodic protection of metals against corrosion ?

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