Determine the runoff coefficient for a subdivision with the following areas: Area 1: 536 m2 Area 1: runoff coefficient: 0.55 Area 2: 335 m2 Area 2: runoff coefficient. 9.79

Q: The composition of an urban land block (1.000 m²) is building area of 500 m²(C= 0.85), parking lot…

A: Neglect the effect of other factors such as rainfall intensity, time of concentration and ARI.…

Q: The rational formula runoff coefficient of a 950 ft x 600 ft property is 0.35. A storm occurs with a…

A: Given data: The value of rainfall intensity i=4.5 in/hr The value of runoff coefficient C=0.35 The…

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: A catchment is made of 60% area

A: Given: Area 1 = 60 % Runoff Coefficient, r1= 0.6   Area 2 = 40 %  Runoff Coefficient, r2= 0.4   The…

Q: The composition of an urban land block No 311a (1,000 m2) is building area of 400 m2(C = 0.80),…

A: Given data: Urban land block No 311a Area = 1000 m2 Building area = 400 m2 , C= 0.8 Parking Lot Area…

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: For a given storm of total rainfall depth of 10 cm at a given watershed, the total direct runoff…

A: Answer We are given total rainfall depth = 10 cm total direct runoff = 8 cm average rainfall…

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: 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: If the annual precipitation is 114 cm/yr, the land area is 13,289 m2, and the runoff coefficient is…

A: The given data is: Annual Precipitation (P) = 114 cm/year Land Area (A) = 13,289 m2 Runoff…

Q: Housing areas A3.0 acres Aso aeres Intel MH3 net A-40 neres Cemetery iet MHT Ditancs between M…

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Q: The land use of an area and the corresponding runoff coefficients are as follows: S. Land use Area…

A: C1=0.70 C2 = 0.10 C3 = 0.30 C4 = 0.80 A1 = 10 A2 = 20 A3 = 50 A4 = 20

Q: A 125-acre urban drainage area consists of three different watershed areas as follows: Downtown Area…

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Q: Estimate the runoff from 140 mm of rainfall on a 350-ha watershed. The land use is open with a grass…

A: Given, Rainfall (P) = 140 mm Area (A) = 350 ha or 350 x 104 m2

Q: Discuss the steps on how to delineate a watershed.

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Q: catchment of area 120 km^2 has three distinct zones as below. What is e annual runoff from the…

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Q: Define Runoff also briefly explain factors affecting the rate of Runoff.

A: Runoff is the part of precipitation that occurs when the rate of precipitation is more than the rate…

Q: Question 2 If the intensity of rainfall is 3 cm/hr, evaporation losses are 6 mm and infiltration…

A: Given -  Intensity of rainfall = 3 cm/hrs. Evaporation loss = 6 mm Infiltration loss = 14 mm…

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: 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: A catchment consists of 30% area with runoff coefficient 0.40 with the remaining 70% area with…

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Q: Homework 2: Example: The land use of the area and the corresponding runoff coefficients are given in…

A: Given:- The land use of the area and the corresponding runoff coefficients are given The rainfall…

Q: alculate the runoff depth (cm) if: ainfall (cm) = 2 urve number =66 0.5 0.3 0.1 0.4 0.2

A: P=2cm CN=66

Q: Homework 2: Example: The land use of the area and the corresponding runoff coefficients are given in…

A: Given -

Q: .) What is runoff? What is the importance of determining runoff volume?

A: RUNOFF the amount of water discharged in surface streams is runoff. it not only includes the water…

Q: a paved lot that is 150m by 150m sloped in one direction at a rate of 2% has the time of…

A: For parking lot Area of the parking lot, A = 150×150 m2 = 22500 m2 The time of concentration = 6min…

Q: Please help, the area runoff coefficient and inlet time for each sub catchment shown in the table.

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Q: Will the following rectangular channel (base = 8 ft, height = 3 ft) be able to provide adequate…

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Q: Calculate the runoff depth (inch) if: Rainfall (inch) = 2 %3D Curve number =63 0.3 0.2 0.1 0.6 0.4…

A: P=2 in CN=63

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: If the intensity of rainfall is 3 cm/hr, evaporation losses are 6 mm and infiltration losses are 14…

A: Given data : Rainfall = 3 cm/hr Evaporation losses = 6 mm infiltration losses = 14 mm A problem of…

Q: 1. A 160-acre drainage basin has the following characteristics: Land Use Residential, flat, 60%…

A: Answer  We know that Peak runoff is given by Qpeak = C*i*A Where Q = peak runoff in ft3/sec C =…

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…