Assume that the contaminated water is to be used for drinking. Using principles of hydraulics, calculate the diameter of a cast iron pipe needed to obtain steady uniform gravity flow of about 0.04 m3/sec given a grading of 0.5% slope.

The density of the solid phase of a substance is 0.90 g/cm3 and the density of the liquid phase is 1.0 g/cm3. a large increase in pressure will a. lower the freezing point b. raise the freezing point c. lower the boiling point d. raise the triple point e. lower the triple point