Sacrificial anode method is used in the protection of pipelines which – McqOptions

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1.	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).
Answer» E.

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