these questions are being asked if they are true or false for each one In open c

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these questions are being asked if they are true or false for each one

In open channels, fow control may be caused by structures at the upstrebe channel. and downstream sections (ends of When the control results channel reach under consideration), but also may be continuous from a structure at the upstream section, we say the control is upstre at the downstican control is downstream. When the flow control occurs continuousty channel, or upstream, control. i.c, the resulting profile is controlled When the flow control results from a structure at tn the channel, the flow is under along the prismatic channel, the statement that the flow is not accelerating means the applied the flow is not accelerating, the depth is constant, meaning there is no pressure presure force, and the applied forces due to gravity and frietion are equal in magnitude brut -For open channel flow in a opposite in direction. the minimum pump runtime is 2 minutes begins by guessing a friction factor Given three branching pipes, the system constraint is nodal continuity at the junction. According to DHIEC guidelines,the maximum detention time in a pump station should not exceed 10 minutes and When using the Darcy-Weishach equation to solve pipe flow problems involving unknown flow rate, the solution Hydraulic grade line (HGL) is a measure of the piezometric head at any point in a fluid system. It is equal to the EGL minus the velocity head. In a static water body, such as lake or water storage tank, the free water surface is the HGL, while in pressurized pipe flow, the HGL is above the top of the pipe. The concept of a dual stormwater drainage system recognizes there is a primary, or minor system that collects and transports runoff from storms of frequent occurrence, i.e.,short return periods, and a major system that is utilized when the capacity of the minor system is exceeded. Storm sewers are part of the major system. The friction factor and Hazen-Williams coefficient differ by 4-orders of magnitude but vary directly in the sense that a pipe flow with a high friction factor has a high Hazen-Williams coefficient. Energy grade line (EGL) represents the total energy at a point and is equal to the sum of potential energy and flow work Given a hydraulically mild open channel. If there is a culvert at some downstream location where the headwater depth at the entrance to the culvert is greater than y, in the channel, then the water surface profile in the channel upstream of the culvert will be an MI profile. Given x, find y is the rule of thumb for the direct step method for flow profile analysis. On an M2 profile, the specific energy and depth of flow increase in the upstream direction; whereas on an M profile, the specific energy and depth of flow decrease in the upstream direction RCP and CMP are rigid pipes, meaning they have sufficient strength to carry loads without deforming or bending while HDPE is flexibl e pipe, meaning it deforms as it transfers the load to the surrounding soil. Storm sewer systems typically have two major components: a surface system composed of street gutters and inlets, and the subsurface system, composed of inlet structures, pipes, junctions, manholes and an outlet structure Hydraulic grade line (HGL) and specific energy both correspond to the free water surface in open channel flow -The general rule of thumb for the standard step method is given y, find x Flow profile analysis involves determination of the non-uniform flow depth along a channel. Assumptions include the flow is steady and gradually varied. Given a storm sewer on hydraulically steep slope. If the tailwater condition is a free outfall, the depth of flow at the outlet will be critical depth, ye

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