hydrology question1- The mean rainfall over a catchment is presented in 20-min time intervals. If the D-index is 8 mm/hr, what are the runoff depth and runoff coefficient respectively? Time (min) Rainfall intensity (mm/hr) 0 15 20 21 40 25 60 17 80 8 100 6 120 10 140 The mean rainfall over a catchment is presented in 20-min time intervals. If the D-index is 8 mm/hr.what are the runoff depth and runoff coefficient respectively?Time(min)Rainfallintensity(mm/hr)01520214025608017 8100612010140

Answered: Image /qna-images/answer/8613d6dd-9017-4083-b77a-ed0b2a97cff5.jpg

Answered: The mean rainfall over a catchment is…

The mean rainfall over a catchment is presented in 20-min time intervals. If th what are the runoff depth and runoff coefficient respectively? Time (min) 0 20 40 60 80 100 120

Structural Analysis

6th Edition

ISBN:9781337630931

Author:KASSIMALI, Aslam.

Publisher:KASSIMALI, Aslam.

Chapter2: Loads On Structures

Section: Chapter Questions

Problem 1P

See similar textbooks

Related questions

Q: Draw the normal force, shear force and bending moment diagrams for the following structure.

Q: Showing the figure as shown in figure 2 determine the following • A) Location of Neutral Axis from…

A: The figure with dimensions is given asTo find:-(A) Location of neutral axis from the bottom(B)…

Q: STRUCTURAL THEORY Show complete solution for better understanding From the given frame shown, with…

A: To find the moments at the member ends of the frame using the three moment equation.

Q: The 60-year record shows that the annual maximum discharges for a river have a mean of 30,000 cfs, a…

A: Given dataA 60-year record maximum discharge for river mean of 30000 cfsStandard deviations of…

Q: A 35 km-deep fault in Assam (Jorhat), India, has the potential to cause an earthquake with a…

Q: D) Location of Neutral axis from left E) Compute for the moment inertia along y-axis

A: Location of Neutral axis from leftCompute for the moment inertia along y-axis

Q: A discharge of 72 m³/s is to be allowed through siphon spillways of 2 m width and 75 cm depth with…

A: Given that :-Coefficient of discharge = Cd = 0.64Width = 2mDepth = 75 cmHead = 8 mDischarge = Q = 72…

Q: A Fink truss is loaded as shown, calculate the forces in members BD, CD and CE. Assuming the members…

Q: Situation 1: From the truss shown, each member has a cross-sectional area of A = 400 mm 2, E = 200…

A: Area of each member, A = 400mm2Young's modulus, E = 200GPaThe truss is loaded with a downwards point…

Q: An Overhanging beam has loaded as shown in figure 1.5 m 50 kN/m Ο Β 2 m C 15 kNm E ^ 1 m 1.5 m 1 m F…

A: A simply supported beam has 2 overhanging portions AB and EF of span 1.5m and 1m.The beam is loaded…

Q: Determine the strain energy stored in the frame

Q: Q1-Draw the axial force, shear force and bending moment diagram for the frame shown in Fig. below.…

A: Frame is given Findaxial force digram shear force diagram Bending moment diagram

Q: Water containing 50 mg/L of monodisperse (uniformly sized) spherical particles of diameter 100 μm…

Q: Using 0.45 power method to draw and compare between the aggregate gradations below. Sieve (mm) 25 19…

A: Sieve analysis dataA hard material made with the strata of hard rocks by disintegration, aggregate…

Q: M kN.m A B m+1 m+ C W kN/m 3 m 2 m E

Q: A 20 m long horizontal concrete floor under a barrage on a permeable foundation retains a 5 m head…

A: Given that :-Length L=20 m,Head =5 m,5 m deep downstream end pile.Find the exit gradient.

Q: Q3) An engineering has designed a vertical curve of length (250m) to connect (-4%) grade with a…

A: The engineer has designed the vertical curve length= 250m Grade of the road is (-4%) and (+3%)…

Q: Q2- A two lane urban road wil the jam condition, the avera; relationship is linear. If t (in…

Q: Classify the structures for Stability and determinacy , if unstable state why, if indeterminate…

A: Given data in question TrussHingesTo find out Indeterminacy NoteM= number of members J = number of…

Q: For the circular arch, find the internal shear force at a location 7 ft to the right of point A. Use…

A: Free body diagram:

Q: Two channels having the given properties shown is placed at a distance of 300 mm to back and is…

A: Properties of one channel is givenFy = 248 MPaL = 6 m or 6000 mm

Q: Find the ava shown in the liameter bolts Use LRFI Use ASD 1 2) 3½" I

Q: A section of a two-lane rural highway is to be realigned and replaced by a four-lane highway with a…

A: Construct time=5 yearsConstruct time=5 yearsDesign life=20 yearsGrowth rate=2%Mi=1Effective CBR=9…

Q: A built up column consist of two channels C 450 x 42.7 and one cover plate 500 mm x 12 mm. The…

A: Properties of C450 x 42.7 section are given L = 6 m or 6000 mmk = 1 Fy = 248 MPaE = 200 GPa or…

Q: 5. An engineering student is driving on a roadway with a -1% grade and sees a traffic barricade 600…

A: G = -1%Vo = 70 mph Vf = 40 mphNOTE : As per guidelines, first question is solved. Request you to…

Q: (B) Define specific gravity and discuss its relationship to density.

A: Define specific gravity and discuss its relationship to density

Q: Two columns are 4,506 mm away from each other measured center to center. The loads supported by the…

A: Structures are by and large intended to have solid section frail shaft frameworks, where such…

Q: 2. Given the following beam under loading: Assume the reactions for point B is 25 k (upward) and for…

A: To draw the bending moment diagram, shear force diagram and identify the minimum and maximum values.

Q: For the system shown in the figure below, find the discharge in each pipe v1.003×10 m/s; Y = 981…

A: Discharge in a pipe refers to the amount of fluid (liquid or gas) flowing through it per unit time.…

Q: Classify the structures for Stability and determinacy , if unstable state why, if indeterminate…

Q: El. 25m A H.W 1200m L, om dia f= 0.013 J 2 El. 12m B Required o Determine the flow from/to each…

A: The elevation of water surface of each reservoir is given,For reservoir A, Z1 = 25mFor reservoir B,…

Q: As per Rankine's formula the passive earth pressure at a depth 8 m in dry cohensionless w

Q: A W 250x58 column is hinged at both ends with sidesway being prevented. The load is eccentric by 25…

A: Properties W 250 X 58A = 7420 mm2Sx = 693 x 103 mm3Sy = 186 x 103 mm3Fy = 250 MPaFe = 412 MPaCm =…

Q: Determine the maximum weight of the flowerpot that can be supported without exceeding a cable…

Q: Please answer neatly and in complete solution

Q: A steel wire (E= 200 GPa) of diameter d= 1.25 mm is bent around a pulley of radius Ro= 500 mm. What…

Q: To convey a discharge of 25 m3/s, a lined canal (n = 0.015) laid at a slope of 1 in 1600 is…

Q: 53. What is the maximum safe speed for a crest vertical curve that is 800 ft long if gl is +4…

A: Length of crest vertical curve, L = 800 ft Grade, G1 = 4% and G2 = -4%

Q: (4.) Determine the internal normal force, pricar porcie, and moment in the beam at point c. bending…

A: The cantilever beam with uniformly varying load is shown. We have to find out the followings: Normal…

Q: 2. If biodegradable organic matter, oxygen, and microorganisms are placed in a closed bottle, the…

Q: Determine the Average Cost if the total cost of the production is $150 and the total numbers of…

A: Given data, total cost of the production = $150Here in question number of production unit is given…

Q: Water at 20°C is pumped at a rate of 15 L/s into a reservoir as shown in the Figure below. Between…

A: The rate of flow into the pipe, Q = 15L/sThe diameter of the pipe, D = 100mmThe length of the pipe…

Q: For the composite structure shown in Figure, draw the shear force and bending moment diagrams of…

A: To draw the shear and moment diagram for the span ABC.

Q: The screw eye below is subjected to two forces, F₁ = 78N and F₂ = 205N. Determine the magnitude and…

Q: (2) Truss IN m 77 (c) Frame

Q: Water flows under a sharp-edged sluice gate in a 10-ft wide channel. If the upstream depth remains…

Q: A 600 mm diameter and 25 m long driven concrete pile carries a column load of 1200 kN. It is…

A: The length of the pile is .The diameter of the piles is .Total column load is .Shaft resistance is…

Q: A column is built up from 4-300 mm x 16 mm plates, welded to form a box section having a width of…

Q: A 254 × 254 × 167 kg/m steel column is completely exposed to temperature variations. The temperature…

Q: Using the equilibrium method for influence lines, find the influence lines for By, Cy, and MD.…

Question

hydrology question

1- The mean rainfall over a catchment is presented in 20-min time intervals. If the D-index is 8 mm/hr, what are the runoff depth and runoff coefficient respectively? Time (min) Rainfall intensity (mm/hr) 0 15 20 21 40 25 60 17 80 8 100 6 120 10 140

The mean rainfall over a catchment is presented in 20-min time intervals. If the D-index is 8 mm/hr.
what are the runoff depth and runoff coefficient respectively?
Time
(min)
Rainfall
intensity
(mm/hr)
0
15
20
21
40
25
60
80
17 8
100
6
120
10
140

Expert Solution

This question has been solved!

Explore an expertly crafted, step-by-step solution for a thorough understanding of key concepts.

SEE SOLUTION Check out a sample Q&A here

Step 1: Determine the runoff depth and runoff coefficient

VIEW

Step 2: Determine the runoff depth and runoff coefficient

VIEW

Solution

VIEW

Step by step

Solved in 3 steps with 3 images

SEE SOLUTION Check out a sample Q&A here

Knowledge Booster

Learn more about

Need a deep-dive on the concept behind this application? Look no further. Learn more about this topic, civil-engineering and related others by exploring similar questions and additional content below.

Similar questions

Show full solution.According to rainfall data collected by a laboratory during storm events, the precipitation level in inches (X) varies jointly with runoff in cubic feet per second (Y). The joint probability mass function (PMF) of both variables are given by the following Table: Y 1 2 3 10 0.05 0.15 0 20 0.1 0.25 0.25 30 0 0.1 0.1 a. Determine and plot the marginal PMF of runoff.b. Determine the correlation coefficient between X and Y.
The ordinates of the direct runoff hydrograph (D.R.O) resulting from a complex storm are shown in the table below. Determine the ordinates of the unit hydrograph by using the deconvolution method. If values of effective rainfall (R) equal to (Ri=1.06 cm, R-1.93 cm, and R=1.81 cm). 1 2 3 Time (hr) 4 5 6 7 8 9 428 1923 5297 9131 10625 7834 3921 1846 1402 Part B: D.R.O (m³/s) 10 11 830 313
QUESTION 3 10 A storm with 10 cm precipitation produced a direct surface runoff of 5.8 cm in the equivalent depth unit. The time distribution of the storm is given in Table below. Estimate the @-index of the storm and the excess rainfall hyetograph. Time from start (hr) Incremental 0.4 rainfall in each hr (cm) 4 6. 0.9 1.5. 3.3 T.7 1.6 1.0 0.5
You have been given a 1-hour unit hydrograph (1 unit = 1 cm) and have been asked to use it to derive the surface runoff hydrograph for a 2-hour storm for which the total depth of rainfall excess was X cm and the intensity was constant. To derive it, you can: Multiply the ordinates of the 1-hour unit hydrograph by X/2 Find the 2-hour unit hydrograph and then multiply its ordinates X/2 Consider the storm as having two 1-hour periods of depth X/2 , multiply each 1-hour UH by X/2, lag them by 1 hour, and then add their ordinates. Multiply the ordinates of the 1-hour unit hydrograph by 2X
Question 4 The time of concentration of a 5.8ha catchment has been estimated as 33 minutes. Estimate the peak rate of runoff for a storm with an intensity of 49mm/hr and a duration of 22 minutes. Assume the coefficient of runoff as 0.61 and the time-area relationship to be linear. Present the result in the unit of m³/s and keep two decimal points (i.e to the accuracy of 0.01). Your Answer: Answer need it ASAP question 4
Q1: The following time distribution of the rainfall, estimate the -Index and W- Index of the rainfall if the surface runoff from this rainfall is (2 cm)? Time (hr) 2 3 4 5 Rainfall (cm) 1.2 1.5 0.9 0.6 1 0.5
The rainfall intensity for each 20 min period are given below for a storm. The direct runoff from the basin is 2.5cm 20 MINUTES RAINFALL RAINFALL 1 2.5 2 5 a) What is the total storm rain? cm b) What is the Phi Ø index for the basin? 3 6.5 _cm/hr 4 3.5 5 1
A certain watershed in Region VIII with an area of 60 ha flat heavy soil is to be converted into a mixed subdivision consisting of: 40% apartment dwelling areas 20% business neighborhood areas 20% playgrounds and parks 20% light industrial areas Using the rational method, estimate the percent change in peak runoff flow rates before and after the development. Refer to the table below for the values of runoff coefficients. Values of Runoff coefficients, C (Chow, 1962) Runoff coefficient, C Runoff coefficient, C Type of drainage area Type of drainage area Lawns: Sandy soil, flat, 2% Sandy soil, average, 2–7% Sandy soil, steep, 7% Heavy soil, flat, 2% Heavy soil, average, 2–7% Heavy soil, steep, 7% Industrial 0.05–0.10 0.10-0.15 0.15-0.20 0.13-0.17 0.18-0.22 0.25-0.35 0.50–0.80 0.60–0.90 0. 10-0.25 0.20-0.35 Light areas Heavy areas Parks, cemeteries Playgrounds Railroad yard areas Unimproved areas Streets: Asphaltic Concrete 0.20-0.40 Business: Downtown areas Neighborhood areas 0.10-0.30…
Sample Problem Given the following observed flows from a storm of 3-hr duration on a watershed with a drainage area of 10 sq. km. Assume that the base flow at the end of the runoff period is 6.0 cubic meters per second. TIME Q (hours) (m³/s) 1 6.0 2 15 3 25 4 21 5 13 6 6.0 1. Determine the direct runoff hydrograph by separating the baseflow. 2. Derive the unit hydrograph (for 1 centimeter of direct runoff) for the 3-hr rainfall.
The flowrate at the outlet of a watershed for 2-hr rain event is given in the table. Base flow is 20 cfs and the runoff depth is 2 inches. Determine 2-hr UH. Must use table format to show details of your solutions. time, hr Q, cfs 20 26 30 3 34 4 28 5 24 6 22 7 20 1. 2.
The ordinates of a hydrograph of surface runoff resulting from 4.5cm of rainfall excess of duration 8 hours in a catchment are as follows. Determine the ordinates of the 8h unit hydrograph for this catchment. Tabulate your solution and plot the 8H-UH.
A catchment has a runoff coefficient of 0.20, area = 1.5 km² with a general slope of 0.001 and maximum length of travel of overland flow of 1.25 km. Information on the storm of 50 years return period is given as follows: Duration (min) 15 30 45 60 80 Rainfall (mm) 40 60 75 100 120 Estimate the peak flow to be drained by a culvert for a 50 year storm