What is the mean "flow of pollutant", QC, into the lake in grams/min? Show calculations. Since the standard deviation ef the concentration, C, is 2 grams/m', what is the standard deviation of the "flow of pollutant", QC, in grams/min? Show calculations.

What is the mean "flow of pollutant", QC, into the lake in grams/min? Show calculations. Since the standard deviation ef the concentration, C, is 2 grams/m', what is the standard deviation of the "flow of pollutant", QC, in grams/min? Show calculations.

Principles of Geotechnical Engineering (MindTap Course List)

9th Edition

ISBN:9781305970939

Author:Braja M. Das, Khaled Sobhan

Publisher:Braja M. Das, Khaled Sobhan

Chapter7: Permeability

Section: Chapter Questions

Problem 7.4P

See similar textbooks

Related questions

Q: Calculate the shielding effectiveness of a 0.015-inch-thick copper shield located 1 inch from the so...

A: Given data, Thickness of shield t = 0.015 in Distance r = 1 in = 0.0254 m Frequency f = 10 kHz = 100...

Q: |3000N 200N/m 4m 4m Rg For the given beam: Zero bending moment point is at m from support A 02 O and...

A: Find zero bending moment locations

Q: A 15" x 3/8" bar of A572 Gr. 50 steel is used as a tension member. It is connected to a gusset plate...

Q: Each of the sliders A and B has a mass of 1.6 kg and moves with negligible friction in its respectiv...

Q: A fully saturated soil mass has specific gravity of 2.5 void ratio 0.45.Determine water content

A: The above can be solved by using the following relation: S x e=w x G Where S = Degree of Saturation ...

Q: All answers must be in STORED VALUES and the final answer must be in four (4) decimal places. ANSWER...

A: We will find water content in each case. Water corresponding to 25 blows is liquid limit. For plasti...

Q: Question: Calculate the kinetic energy in joules of a 150 lb jogger (68.1 kg) traveling at 12.0 mile...

Q: PROBLEM THEORY-10. A 4-m propped cantilever beam is loaded as shown in the figure. E = 200 GPa and I...

Q: Problem #2. The figure below are 3 solid cylindrical bars joined together by a flange. Find the axia...

Q: A fully saturated soil mass has specific gravity of 2.5 void ratio 0.55.Determine water content

A: Given data : The value of void ratio of soil=e The value of specific gravity of soil=G The value of ...

Q: piston to move outward by 8.00 cm. If the remains at a pressure of 140 kPa for this process, t is th...

A: According to given data When a certain quantity of helium gas contained inside and engine cylinder c...

Q: An operator is analyzing the structural strength of a cement mix. Structural strength is normally di...

A: Given, Variance (σ2) = 1000 psi2 Error = 10 psi

Q: Length = 30 ft. Total uniformly distributed Live Load = 110 kips Total uniformly distributed Dead Lo...

A: According to given data Distributed uniform live load = 110 kipsDistrbuted uniform dead load = 24 ki...

Q: A plate with width of 300 millimeters and thickness of 20 millimeters is to be connected to two plat...

A: We have to determine the value of maximum P that can be resisted by Tensile Stress considering failu...

Q: A single rolling load of 28 kN rolls on a girder of 21 m span. The absolute maximum bending moment o...

Q: Hi. Please help me with this one. You can use the 2nd photo as reference. Thank you very much. Subj...

Q: zoology graduate student is provided with a bow and arrow tipped with a syringe of sedative and is a...

A: The given data is: Find initial speed of arrow, =launching angle=45 deg g=9.81 m/sec2 R=range of arr...

Q: 2(m) 2(m) 2(m) 1(m) 3.32 2.96 n=2

A: According to given data

Q: A drainage pipe beneath a dam has clogged with sand whose coefficient of permeability is found to be...

Q: 2=3 EHE P-10k

A: Thank You :)

Q: Prob.4. There are four rain gauge stations existing in the catchment of a river. The average annual ...

A: Given data, In a river catchment area, No. Of rain gauge= 4 Average annual rainfall, = 800mm, 620mm,...

Q: A fully saturated soil mass has specific gravity of 2.5 void ratio 0.45 .Determine water content

A: Given data in question Fully saturated soil Void ratio Specific gravity To find out Water content

Q: 1. Explain why the transportation planning process is not intended to furnish a decision or give a s...

A: Note- Hi! Thank you for the question As per the honor code, We’ll answer the first question since th...

Q: The secondary beam is a 250UB31.4 of the same grade and exerts a total load of 200kN at mid- pan of ...

A: The given data is: For a A 360UB50.7 simply supported beam of length=8m The secondary beam is a 250U...

Q: For the beam shown in Fig.2, if modulus of elasticity (E) equal to O GPa, by using Moment - area cho...

A: According to given data For the beam shown in Fig.2, if the modulus of elasticity (E) equal to 200 G...

Q: Deflection at point B in mm. Deflection at point E in mm.

Q: Create an appropriate experimental research design for the following study. You are to determine th...

Q: Below is a moment diagram of a certain beam. 2(m) 2(m) 2(m) 1(m) 2.96 3.32 Mx n=2 -2.04 -2.4 1. Dete...

A: As per the guideline, in case of multiple sub-parts of the question I have to answer first three. If...

Q: Practice Problem 4.5 A rectangular beam has a width of 320 mm and an effective depth of 570 mm. Conc...

Q: If the distance two places on the map is 12cm, with the map scale of 1:2,000,000,what is the ground ...

A: Given data, Map scale = 1:2,000,000 Distance of 2 places on map = 12 cm

Q: A calibration test of a 12.5 mm diameter circular sharped-edged orifice in a vertical side of a larg...

Q: A fully saturated soil mass has specific gravity of 2.5 void ratio 0.45 .Determine water content

Q: A simply supported beam has a span of 12 m and carries a concentrated load of 20 kN at its midspan. ...

Q: ain travels from A to B, a distance of 20 000m, taking 1000s. The journey has three stages. In first...

A: Let us assume that uniform acceleration until speed=v m/s The constant speed for 600 sec Als...

Q: 2.63 Determine the ratio of areas, A,/A,. of the two manometer legs of Fig. P2.63 if a change in pre...

Q: 18 x 50 beam is attached to W 12 x 65 column by means of two 100 x 75 x 10 ngles. Four 19-mm-diamete...

A: The given data is: Size of the beam=18*50 The allowable shear on bolt=93 mpaThe bearing stress=186 M...

Q: Determine the Reactions 10 k 6k B D 20 ft MN lb/ft A 30 ft 15 ft 10 ft-10 ft--

Q: P. = 30KN P2= 20KN a = 1 L = 6m R: R2

Q: State and explain the effects of fineness of cement hydration rate.

A: The fineness of cement is one of the major factor influencing the rate of hydration because of the r...

Q: Load combinations for LRFD are given in the NSCP 2015 or ASCE 7 as follows. Combination 1: 1.4D Comb...

A: We will take maximum value for individual combination and find out value of maximum load combination...

Q: 7. In reference to problem number 1, if another pump was used having a power requirement of 12 hP wi...

Q: Question 1 A turbine develops 16,000 hp with a decrease in elevation of 34 ft and a rotational speed...

A: Answer We are Given Power P =16000 hp Head H = 34 ft Speed N = 120 rpm

Q: Calculate the reaction forces at each support for the truss shown. Neglect the weight of the truss. ...

Q: State and explain the qualities of good cement.

A: It is always desirable to use the best quality cement in the various constructions. Therefore, all t...

Q: A fully saturated soil mass has specific gravity of 2.5 void ratio 0.55.Determine water content

Q: Situation 1: The position of a particle along a straight line is given by s = (t3 - 9t2 + 15t) ft , ...

Q: 26. What displacement would an accumulator have to be in order to supply 10 gallons of fluid between...

Q: ball is thrown straight upward from the ground level. Its initial velocity is 30 m/s. 1. What is it...

A: Initial velocity of Ball ,u = 30 m/s 1 - Velocity after 2 sec. as we know that V = u + at Where v...

Q: A cylindrical object 82mm diameter, 165mm height and a mass of 599g, is placed in the tank, which co...

A: Given data, Diameter of object d = 82 mm Height of object h = 165 mm Mass of object m = 599 g Thickn...

Q: . Using the force method of analysis, determine the force in each member of the Truss shown in Q. 2....

Concept explainers

Pressure and Stress

Question

solve a and bfast

Problem 2 Normal Distributions
A lake has one input stream with a flow rate of 4 m/min. The value of the concentration, C,
was monitored. The concentration was found to be normally distributed, with a mean value,
* 10 grams/m and a standard deviation, a- 2 grams/m
Assume steady-state and a conservative pollutant.
a. What is the mean "flow of pollutant", QC, into the lake in grams/min? Show
calculations.
b. Since the standard deviation ef the concentration, C, is 2 grams/m, what is the
standard deviation of the "flow of pollutant", QC, in grams/min? Show calculations.
c. What is the probability that the concentration of pollutant, C, will be between 12
grams/m and 15 grams/m? Show calculations and indicate on normal distribution
curve,

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

VIEW

Step 2

VIEW

Step by step

Solved in 2 steps

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

Following observations were made for conducting a water budget of a reservoir over a period of one month:- Average surface area = 10 km² Mean surface inflow rate = 10 cumec Mean surface outflow rate = 15 cumec Rainfall 10 cm Fall in the reservoir level = 1.5 m Pan evaporation = 20 cm Assuming the pan-factor as 0.7, estimate the average seepage discharge from the reservoir during the month.
Please be clear with your solution and write an explanation for every formula and solution. Problem:Laguna Lake has a surface area of 708,800 sq.m. Based on collected data, Pasig river flows into the lake at an average rate of 1.5 cu.m/s and the Paranaque river flows out of the Laguna lake at an average rate of 1.25 cu.m/s during the month of June. The evaporation rate was measured as 19.4 cm/month. Evapotranspiration can be ignored because there are few water plants on the shore of the lake. A total of 9.1 cm of precipitation fell this month. Seepage is negligible. Due to the dense forest and the gentle slope of the land surrounding the lake, runoff is also negligible. The average depth in the lake on June 1 was 19 m. What was the average depth of June 30?
(a) For a given year, a catchment with an area of 3000 km? received 160 cm of precipitation. The average flow rate measured in the river draining the catchment was 40 m³/s. Find DRO" (i) How much runoff reached the river for the year (in m')? TRO = P+A (ii) Estimate the amount of water lost due to the combined effects of evapotranspiration and infiltration etc (in m')? (iii) How much precipitation is converted into river runoff (in percentage)? 26. (iv) What is the ratio of runoff to precipitation?
Civil Engineering Hydrology A certain lake has a surface of 708,000 sq m. For a given month ( assumed 30 days ) the lake has an inflow of 1.5 m² /s and an outflow of 1.25 m/s and a storage change of +690,000 m and was recorded. If a precipitation gage recorded a total of 22.5 cm for this month ,determine the evaporation loss in cm for the lake .Assume seepage loss is negligible
Problem- Ultimate BOD of a river water sample is 20 mg/L. BOD rate constant (natural log) is 0.15 day¹. The respective values of BOD (in %) exerted and remaining after 7 days are:
Q2: At the beginning of a given day a reservoir has a surface area 30 km². The inflow to the reservoir during the day was measured to be 65 m³/s. In addition, the day was dry and the seepage is 5% of the inflow. Assume the area of the reservoir does not change significantly by the end of the day. Determine the reservoir evaporation in mm/day where the reservoirs level is decreased 3.5 cm and the pan coefficient is 0.8?
A total of 10 mm of rainfall fell on a lake with a surface area of T km^2 in June 1996. Relatedthe average flow rate of the stream entering the lake per month is 12 m^3 / s, while the average flow rate of the stream leaving the lake is7m^3/s dir. Monthly evaporation height measured in an evaporation pan near the lake during this month45mm and the pan coefficient in the relevant month is 0.75 according to what is the volume of water in the lake in this monthcalculate that it has changed up to?(T=159)
1. The surface area of a lake is 500 ha and the daily evaporation were recorded as follows. Using a pan coefficient of 0.7, compute the change in volume in the lake at the end of 6 days. State your answer in a complete sentence. Indicate whether a gain/loss. DAY 1 2 3 4 5 6 Pan evaporation (cm) 1.5 2.2 0.6 1.2 0.7 1.7
a. The streamflow from a 500-hectare catchment due to a storm of constant intensity of 27mm/h for four hours can be represented by a triangle in which the peak flow was 25 m3/s. The flow lasted six (6) hours and peaked at two (2) hours. The soil texture is uniform throughout the catchment and when the surface is ponded, its infiltration rate varies according to the Horton equation, with a decay constant, k, of 0.5 h and a maximum infiltration rate, fo, of 24 mm/h. Use the information to determine; the volume of infiltration (mm); the infiltration rate at soil saturation (mm/h); and i. ii. iii. the runoff coefficient of the catchment. iv. State your assumptions.
Question 8A 200 g/l solution of common salt was discharged into a stream at a constant rate of 25l/s. The background concentration of the salt in the stream water was found to be 10 ppm. At a downstream section where the solution was believed to have been completely mixed, the salt concentration was found to reach an equilibrium value of 45 ppm. Estimate the discharge in the stream.
Problem 1: Water BalanceMeasurements of water-balance components have been made for a one-year period on a lake with an area of 0.8 km2 with the following results: P = 1400 mm, Qsi = 0.15 m3 s-1, and Qso = 0.17 m3 s-1. The lake-surface elevation, h, at the end of the year was 45 mm lower than at the beginning. What is the estimate (in mm) of the lake evaporation for that year?
3. A conventional activated sludge plant is to be designed to achieve a mean effluent BOD and TSS value of 10 mg/L. Determine the number of annual occurrences of BOD and TSS values exceeding 20mg/L. Assume the geometric standard deviation (sg) is 1.3 for effluent BOD and TSS.