Sacrificial anode method is used in the protection of pipelines which are buried underground. Sacrificial anode
(A) Occurs higher in the electro-chemical series of metals
(B) Is exemplified by magnesium plate
(C) Is much cheaper than the cathodic base material to be guarded against corrosion
(D) All (A), (B) & (C)
(A) Occurs higher in the electro-chemical series of metals
(B) Is exemplified by magnesium plate
(C) Is much cheaper than the cathodic base material to be guarded against corrosion
(D) All (A), (B) & (C)