A 225-mm sewer is to flow full at velocity of 0.75 m/s_ a) What are its maximum capacity and what minimum grade it should be laid if coefficient of roughness is 0.013. b) How many people it can serves if the Peak average per capita flow is 300 ipcd. Ignore infiltration ) How many additional people the sewer can cater if slope is doubled

Describe the structural properties of one material example for each of the following material categories metals, plastics, and composites with reference to their material properties (table format is a simpler method of illustrating all your data upon at least three different examples). Explain the types of degradation found in the materials you chose.

34. What is the role of a civil engineer in the design of a wastewater treatment plant

explain the importance of principle Safety.