10:38N all llBAHIRDAR UNIVERSITYBahirdar Institute of Technology (BIT)Faculty of Civil and Water Resource EngineeringHydraulics-l sample exam questions as an assignment1. Water is flowing through a concrete rectangular channel at a rate of 0.5 m'/s. If the manning'sroughness for concrete is n= 0.015, and the bed slope (s) is 1 in1000, determine the mosteconomical section; i.e. width (b) and depth (d). (6%)2. A long wide rectangular channel carrying a specific discharge (q)of 2.5 m'/s per meter width,has a slope of 1 in2750. If the manning's roughness coefficient (n) is 0.015:a) Calculate the critical depth and normal depth.(3%)b) Describe specific energyin short, and determine the specific energy for the givenchannel.(2.5%)c) Decide whether the flow is in sub critical, super critical, or critical condition.(1.5%)3. Using Buckingham Pi method of dimensional analysis (the method of repeating variables),show that the flow rate of a liquid (Q)over a notch can be given by the dimensionless group.(6%)Q =Kg H?sWhere H is head, pis density, u is dynamic viscosity, o is surface tension of liquid, g is gravitationalacceleration and k is constant.Hint: list all variables and follow the procedure. Surface tension (0) is expressed as force/length. The retvariables are common.4. A small channel is going to be constructed at a scale of 15:1 to study the flow characteristics of alarger navigation channel. Remould's numberlaw will be used as the viscous forces are the dominantones.If the samefluid (water) is used in both the model and prototype channels. (6%)a. Determine the time ratio (t), velocity ratio (v), and discharge ratio (Q).b. What should be the discharge (On) in the model channel if the discharge in the prototype is 150m/s?June 7 2019You are welcome to ask unclear terms or corrections.Mobile ViewTools88

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1. Water is flowing through a concrete rectangular channel at a rate of 0.5 m'/s. If the manning's roughness for concrete is n= 0.015, and the bed slope (s) is 1 in1000, determine the most economical section, i.e. width (b) and depth (d). (6%)

1. Water is flowing through a concrete rectangular channel at a rate of 0.5 m'/s. If the manning's roughness for concrete is n= 0.015, and the bed slope (s) is 1 in1000, determine the most economical section, i.e. width (b) and depth (d). (6%)

Structural Analysis

6th Edition

ISBN:9781337630931

Author:KASSIMALI, Aslam.

Publisher:KASSIMALI, Aslam.

Chapter2: Loads On Structures

Section: Chapter Questions

Problem 1P

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