Match the associated control structure dimension with its letter on the diagram. Bleed Down Orifice Invert Elevation OA Depth of the Treatment Volume Weir Notch Invert Elevation Top of Structure Weir Width Top of Treatment Volume Normal/Control Water Level Peak Stage for 25-year/24-hour Storm Event B [Choose] [Choose] [Choose] [Choose] [Choose] [Choose] [Choose] [Choose] < > >

[CE hydraulics] Does the Manning coefficient depend on the Reynolds number of the flow or on the hydraulic radius of the conduit?

DIFFERENT QUESTION FOR REVISON-EXAMINATION   Additional Questions:   (1) A fluid of constant density flows at the rate of 15 Liters/ sec along a pipe AB of 100 mm diameter. This pipe branches at B into two pipes, BC and BD each of 25mm diameter and a third pipe BE of 50mm diameter. The flow rates are such that the flow through BC is three times the flow rate through BE and the velocity through BD is 4 m/s. Find the flow rates in the three branches BC, BD and BE and the velocities in pipes AB, BC and BE. Water is flowing through a pipe with a velocity of 7.2 m/s. Express this velocity as velocity head in meters of water. What is the corresponding pressure in kN/m2. (2) A pipe of 150mm bore is delivering water at a rate of 7500dm3/min at a pressure of 820 kN/m2.It connects by a gradually expanding pipe to a main of 300 mm bore which runs 3 m above it. The main is designed to withstand a maximum pressure of 814 kN/m2. Neglecting loses due to friction determine if the main will fail or…

Max average daily flow = 16 MGD Minimum depths 10’ for primary clarifier and 15’ for secondary clarifier Find: Dimensions of clarifiers (Hint: Consider service loading and detention time) Determine Volume by finding detention time (Assume 90 minutes = 0.0625 Days) 0.0625 Days = V / 16 MGD therefore, Volume = 1,000,000 Gallons = 133,681 ft^3 Primary Clarifier (10’ depth): Cross sectional area = 13,368.1 ft^2 =0.25*pi*d^2 therefore, d = 131 ft. = 135 ft.