Which is the best sewer material to resist hydrogen sulphide corrosion

1.	Which is the best sewer material to resist hydrogen sulphide corrosion ?
A.	Glazed stone ware
B.	Glazed earthen ware
C.	R.C.C.
D.	Brick masonry
Answer» B. Glazed earthen ware

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Which is the best sewer material to resist hydrogen sulphide corrosion ?

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