Water Supply Engineering
Asbestos pipes are

All listed here
light in weight and easy to transport
highly resistant to corrosion
very much smooth and hydraulically efficient

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Water Supply Engineering
While determining the yield of open wells by the pumping test

Depression head resulting at critical velocity, is called critical depression head
Working head is generally limited to ?rd of the critical depression head
Velocity of recharging water, increases with depression head
Maximum safe yield of an open well, is expected at critical depression head

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