Q.

Which of the following is not true about lead pipes?

A. lead pipes are highly resistant to corrosion
B. they have a low hydraulic coefficient of flow
C. lead pipes are highly flexible
D. when lead goes into solution, it has a cumulative poisoning effect
Answer» B. they have a low hydraulic coefficient of flow
Explanation: lead pipes have many advantages. they have a high hydraulic coefficient of flow and are highly resistant to corrosion. lead pipes are highly flexible.
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