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