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Pipe corrosion can be minimized by ____________

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Pipe corrosion can be minimized by ____________

(a) Removal of copper sulfate

(b) Addition of calcium carbonate

(c) Addition of carbon dioxide

(d) Removal of dissolved oxygen

The question was asked in a job interview.

The above asked question is from Layout of Distribution System topic in division Conveyance and Distribution of Water of Environmental Engineering

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Correct choice is (d) Removal of dissolved oxygen

The explanation: Pipe corrosion can be minimized by pH adjustment, control of calcium carbonate, removal of dissolved oxygen, removal of carbon dioxide and by the addition of sodium silicate.

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