.) What is runoff? What is the importance of determining runoff volume?
Q: A 200-acre urban drainage area consists of three different watershed areas as follows: (i) 100-acre…
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Q: Rational Method should not be used for large catchments in estimating peak runoff. Is it true?
A: . Assumptions for rational method Rainfall duration is equal to the time of concentration Rainfall…
Q: The drainage area of a town is 12 hectares. 40% of the area is hard pavement (C= 0.85), another 40%…
A: C1 = 0.85 Area coefficient A1 = 0.4 C2 = 0.2 A2= 0.4…
Q: The period of runoff for a 1-hour UH is given as T. The resulting period of runoff for a 2-hour UH…
A: T+1 To obtain 2hr Unit hydrograph 1hr uni hydrograph is added by delaying it by 1 hour
Q: Discuss the factors that influence infiltration and runoff. What measures can be undertaken to…
A: Factors affecting (A) Infiltration (1) Amount and type of precipitation (2) Organic materials…
Q: The Rational method is simple and straight forward but must be applied with caution. For example, in…
A: Ans. True Explanation given below:
Q: The part of runoff which comes over the surface represents a slow component of runoff? Select one:…
A: The part of runoff which comes over the surface represents a fast component of runoff. The part of…
Q: Determine equivalent runoff coefficient
A: Given data : Area of road A1=8 ha Area of lawn A2=17 ha Area of residential area A3=50 ha Runoff…
Q: The sewage from an area of 400 acres is to be carried by a circular sewer at a velocity not less…
A: Manning's equation : Manning's equation is an empirical equation that is a function of the channel…
Q: You were involved in the design of a drain for an urban road. What were the limitations that you…
A: Solution: Rational Method or Rational Equation: The formula for the calculation of runoff or peak…
Q: What is meant by antecedent moisture conditions? How do they affect surface runoff?
A: Antecedent moisture may be defined as the relative wetness or dryness of a sewershed, which changes…
Q: It is used to receive runoff at grade and permit the water to flow downward into underground storm…
A: Drain inlets collect water from roads and parking lots and convey it to an underground storm drain…
Q: Problem 4.7. Determine the runoff volume in millimeters (in.) of depth from 50-year return period…
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Q: Discuss the challenges associated in peak runoff calculation using Rational Method.
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Q: The problem of surface runoff in the cities (urban area) give out the real example and the solution…
A: Examples of problems due to surface runoff in the cities (urban area) are listed below: Synthetic…
Q: The following land and the land use of the area and the corresponding runoff coefficients are given…
A: Given Data: Runoff Coefficient after converting parks to malls and shopping centers = 0.8 Rainfall…
Q: The annual average precipitation is mm The annual average evaporation is mm Runoff coefficient @ sub…
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Q: 1. Estimate the peak flow rate assuming that the runoff coefficient is 0.4. 2. If the land use and…
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Q: Determine the runoff coefficient for a subdivision with the following areas: Area 1: 536 m2 Area 1:…
A: This problem is related to Hydrology Engineering. In this problem given Area and Runoff cofficient…
Q: Define the limitations of Rational Method in calculating runoff?
A: Solution: Computation of runoff is basically a complicated matter that depends on so much factors…
Q: A 125-acre urban drainage area consists of three different watershed areas as follows: Downtown Area…
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Q: What do you know about Infiltration losses? Explain the factors affecting Infiltration rate.
A: As per our guidelines we are supposed to answer only one question. Kindly repost other question as…
Q: The volume of runoff is lesser for the intense storm comparing with gentle rain even though the…
A: The volume of runoff is lesser for an intense storm as compared with gentle rain even though the…
Q: Determine the peak runoff rate of a 70-hectare forest with matured woodland with a rainfall…
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Q: If the cumulative distribution function of the peak runoff rate, Q (in m3/s), in any runoff event is…
A: The expression for the return period is given by, Substitute the values in the above expression.
Q: A catchment area has a time of concentration of 20 minutes, an area of 20 has. and a runoff…
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Q: Q2: For a certain catchment, the following data are available: 1- The area of the catchment is…
A: We have to find the direct runoff volume in m3
Q: The runoff volume is expressed in the units of depth similar to the precipitation units. Select one…
A: Introduction : Runoff : When there is more water than the land can absorb, runoff occurs. The…
Q: Define Runoff also briefly explain factors affecting the rate of Runoff.
A: The hydrologic cycle starts with evaporation of surface water from ocean followed by condensation,…
Q: Which urban land use type contributes the highest runoff flow rates? Group of answer choices a)…
A: runoff : Natural runoff occurs when soil is eroded and carried to different bodies of water. Natural…
Q: A certain watershed in Region VIII with an area of 60 ha flat heavy soil is to be converted into a…
A: To find - The percentage change in peak runoff flow rates before and after development
Q: For a watershed drainage area that is 10 acres with an elevation drop of 6 feet over a flow length…
A: The values given in the question are as follows Watershead drainage area(A)=10 acres Elevation…
Q: A 125-acre urban drainage area consists of three different watershed areas as follows: Downtown Area…
A: Runoff rate is generally the volume rate of movement or quantity of stormwater flowing past an…
Q: 1. Estimate the peak flow rate assuming that the runoff coefficient is 0.4. 2. If the land use and…
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Q: Which will cause an increase in runoff and infiltration in an area ?
A: Mention the parameters which increases the runoff and infiltration of an area:-
Q: For an inlet area of 2.0 acres having an imperviousness of 0.50 and a clay soil, find the peak rate…
A: Given- an inlet area of 2.0 acres having an imperviousness of 0.50 and a clay soil having a flat…
Q: Q2: For a certain catchment, the following data are available: 1- The area of the catchment is…
A: Question requires the concept of hydrology and Land use table.
Q: What would be the peak surface runoff resulting from 3mm of rainfall falling in the space of two…
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Q: Determine the mean runoff flow in cfs from a drainage area of 175 acres using the English equation…
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Q: Discuss the components of "Total Runoff."
A: In hydrology, runoff is the amount of water that is released into natural streams. Besides the…
Q: Determine the runoff coefficient for an area of 0.1 km2. 7000 m2 by Gravel driveways and walks, and…
A: Given:- The total area = 0.1 km2 = 100000 m2 The area covered by gravel driveways and walks = 7000…
Q: From the the given table, determine the direct runoff if the effective rainfall during 1-hr is 5 mm…
A: solution Given the unit hydrograph which has an effective rainfall of 1mm and the direct runoff…
Q: For the relation between direct runoff and time? A- It starts and end with base flow. B- It starts…
A: While plotting a discharge-Time graph , the base flow is achieved by joining with a straight line…
Q: Calculate the runoff from a watershed of (0.01 x 4737) ha. The following data are available: Depth…
A: To find runoff
1.) What is runoff? What is the importance of determining runoff volume?
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- For the relation between direct runoff and time? A- It starts and end with base flow. B- It starts before base flow and ends after. C- it It starts and end with direct runoff. D- It starts before base flow and ends with it. What is the correct answer??The part of runoff which comes over the surface represents a slow component of runoff? Select one: True FalseThis method of computing runoff assumes that initial losses are satisfied before runoff is generated.