Direction: Choose A- When both statements are true; B - When both statements are false; C- When the first statement is true and the second statement is false; D- When the first statement is false and the second statement is true. First Statement: The piezometric surface of an aquifer confined by an aquiclude is higher than that of an unconfined. Second Statement: Hydraulic conductivity is a measure of permeability or impermeability of a geologic unit.
Q: DAM 30 FT FLOW SAND T = 20 FT %3D IMPERVIOUS ROCK B = 240 FT The total length of the dam shown is…
A:
Q: ts to determine the permeability of an aquifer. The aquifer has a test well 300-mm in diameter with…
A:
Q: Calculate the equivalent hydraulic conductivity in the horizontal direction for the given stratified…
A: Given: Depth of each layer, H = 1 m
Q: (b) A well penetrates an unconfined aquifer. The water level in the well prior to pumping was 14 m.…
A: Step 1
Q: 9.9. As shown in the sketch below, an unconfined aquifer on a hillside drains into a stream. The…
A: The formula to calculate the seepage rate of the water is given by, Q=2AV=2AKdhdL=2T×1 miKdhdL…
Q: Yuri wants to determine the permeability of an aquifer. The aquifer has a test well 300-mm in…
A:
Q: (b) A well penetrates an unconfined aquifer. The water level in the well prior to pumping was 14 m.…
A: Hydraulic conductivity: The measure of the ability of material for the transmission of fluid through…
Q: (b) A well penetrates an unconfined aquifer. The water level in the well prior to pumping was 14 m.…
A:
Q: Find the hydraulic conductivity coefficient of permeability, k.
A:
Q: Yuri wants to determine the permeability of an aquifer. The aquifer has a test well 300-mm in…
A:
Q: 1. A confined aquifer is recharged by a continuous supply of water from the certain source. The…
A:
Q: Define hydraulic conductivity
A: Hydraulic Conductivity Hydraulic conductivity is a physical property which measures the ability of…
Q: A 300 mm diameter test well penetrates 27 m below the static water table. After 24 hours of pumping…
A:
Q: 1. Two observation wells have been constructed in the formation shown. The flow rate is 0.01 m³/hr,…
A: The given figure is shown below:
Q: A sand layer of the cross-sectional area shown in Fig. has been determined to exist for a 800-m…
A:
Q: B- A 20cm diameter well penetrates fully a confined aquifer of thickness 25m .when the well is…
A:
Q: Soil in a field has three layers. Each has a thickness of 3m, 4m, and 3m, from top layer to bottom…
A: H1=300cm H2=400cm H3=300cm
Q: Water 3 m Clay 1 ki T+T2 n2 Clay 2 B. T2/2 k2 Sand Aquifer Shown in the image are two clay layers…
A:
Q: A confined aquifer of 15 m constant thickness is sandwiched between two aquicludes as shown in the…
A: Given- Heads= 55.2 m & 34.1 mk=80 m/dayporosity n=0.25time taken to reach from P to Q is needed…
Q: A tube well is constructed in a confined aquifer. The discharge of the tube well is 10 L/s, where…
A: Required :- Diameter of the well, dw
Q: In an artesian aquifer of 8m thickness , a 10cm diameter well is pumped at a constant rate of 100…
A: Given data:
Q: DAM 30 FT FLOW T = 20 FT SAND IMPERVIOUS ROCK B = 240 FT The total length of the dam shown is 800…
A:
Q: quifer. The aquifer has a test well 300-mm in diameter with two observation wells. A pumping test…
A:
Q: refer to the constant-head permeability test arrangement show in the figure. A test gives L=30cm;…
A: Given data:
Q: An aquifer slope away from a river. The hydraulic conductivity of the aquifer which is 20 ft thick…
A:
Q: 3. The permeability of the aquifer is if the drawdown is 4m, discharge is 40litres/sec, thickness of…
A: Given:- Discharge, Q = 40 l/s = 0.04 m3/s Drawdown, s1 - s2 = 4m Thickness of confined Aquifer, B =…
Q: Does the Manning coefficient depend on the Reynolds number of the flow or on the hydraulic radius of…
A: Manning's coefficient is dependent on geometric properties of a channel. It is also dependant on the…
Q: Please answer with complete solution and Fbd. A field sample of an unconfined aquifer is packed in a…
A: Given data, Length L = 60 cm Diameter d = 8 cm = 0.08 m Head difference dh = -18.5 cm Time period…
Q: A confined aquifer has a of recharge. K for the aquifer is 60 m/day, and n is 0.3. The piezometric…
A: aVolume discharge :Q=kAdhdlA=35×1500 k=60mdaydhdl=70-601500
Q: Determine the following: a) hydraulic conductivity is ______ x10^3 cm/sec b) Transmissbility of…
A: B = 20 mr1 = 100 mr2 = 1000 mQ = 0.2 m3/ min.S1 = 8 mS2 = 2mRw = 12m = 0.5 m
Q: An aquifer having a thickness of 4 m, has a hydraulic conductivity of 2 x 104 m/s. Two piezometers…
A:
Q: B-A 20cm diameter well penetrates fully a confined aquifer of thickness 25m .when the well is pumped…
A: for determination of the yield of the well we need to know the Darcy law. condition required for…
Q: A constant head test is performed using a permeameter in the laboratory. The graduated cylinder…
A: Note:- Hi! Thank you for the question As per the honor code, We’ll answer the first question since…
Q: A 300-mm diameter static test well penetrates 27 is pumped at liters per second for 24 hrs. The…
A:
Q: aquifer having a thickness of 4m. has a hydraulic conductivity of 2x10-4 m/s. Two piezometers have…
A: Hello dear this is the solution of your problem Please see the attached solution, thanks
Q: Three piezometers have been installed in the confined aquifer having a uniform thickness of 4.6 m.…
A:
Q: SITUATION 11: A 300-mm diameter test well penetrates 27 m below the static water table. Water is…
A: Given a 300 mm diameter test well y = 27m; Water is pumped at a flow rate of 69 l/sec The rate of…
Q: SIT H. A 300 mm diameter well penetrates 27 m below the static water table. After 24 hours of…
A: The diameter of pumping well, d=300mmThe depth of well, H=27mThe discharge rate, Q=96LsThe radial…
Q: Three piezometers have been installed in the confined aquifer having a uniform thickness of 4.6 m.…
A:
Q: Yuri wants to determine the permeability of an aquifer. The aquifer has a test well 300-mm in…
A:
Q: A circular tube of length 500 mm and cross-sectional area 50 cm2 is placed horizontally and filled…
A:
Q: Yuri wants to determine the permeability of an aquifer. The aquifer has a test well 300-mm in…
A:
Q: D Question 1 For 1-D unconfined aquifers which is valid. O Governed by Darcy's Law directly. O Depth…
A: Given Multiple choice questions to which answers is provided below.
Q: d) If the relative evaporation pressure of water is pv = -98.5 kPa, what can be z maximum? e)…
A: "Since the term 'h' in part e is not shown in the diagram, we will solve parts d and f for you." If…
Q: A falling head hydraulic conductivity test is performed on a sample of soil. The stand pipe having a…
A: Given data in question Diameter of standpipe Diameter of soil sample Length of soil sample Time…
Q: The formation of length 6.4km between two stream A and B IS made up of two layers, the bottom layer…
A: Given: The length between two streams is 6.4 km. The thickness of the bottom layer is 8 m. The…
Q: Figure A gives the sectional profile of a confined aquifer. Given: Ho = 5m, Do (max) = 5.5m, R; =…
A:
Q: Estimate the transmissivity of confined aquifer in steady state flow if you know the drawdown is 3 m…
A:
Trending now
This is a popular solution!
Step by step
Solved in 4 steps
- Direction: Choose A - When both statements are true; B - When both statements are false; C- When the first statement is true and the second statement is false; D- When the first statement is false and the second statement is true. First Statement: Seepage velocity is just the ratio of the porosity to the Darcy velocity. Second Statement: The hydraulic gradient of an aquifer is positive when the groundwater flows from a point with higher head to another point with lower head.Which of the following statements about HGL and EGL is correct? O For any pipe will a constant wall thickness, the slopes of EGL and HGL will be constant. O If the EGL falls below the pipe, then pressure head is negative, indicating a potential location of cavitation. O When a flow passage decreases in diameter, the distance between the EGL and HGL will increase. O When a pipe discharges into the atmosphere, both HGL and EGL will coincide with the system because pressure head is zero at these points.The pipe bend shown is in a horizontal plane. Oil with a specific gravity of 0.86 enters the reducing bend at section A with a velocity of 3.2 m/s and a pressure of 150 kPa. Neglecting head loss, determine a) FMY (N) b) Fpx (N) c) Fpx (N) de = 100 mm da = 150 mm 30° A
- Q3. SAE 30 oil (Sp. Gr. =0.833) with a dynamic viscosity 0.28 N.S/m? flows in a 4-cm-diameter pipe which is inclined with an angle 37°. For the pressure measurement shown, determine A. Whether the flow is up or down The flow rate in m'/h C. The shear stress and velocity 1 cm from the boundary Draw the shear stress and velocity profile with the section of the pipe. В. D. P-180 kPa P- sOokPa 15m 20mThe compressible flow is assumed to be..?Medium oil having a sp.gr. of 0.90 flows through a 120 mm diameter pipe with a mean velocity of 5.3 m/s and a friction factor of 0.01. Oil has an absolute viscosity of 0.04 Pa-s. Compute the velocity at the center. a) 7 m/s c) 5 m/s b) 6 m/s d) 8 m/s 2 Compute the shear stress at the wall of the pipe. a) 48.62 N/m2 c) 31.60 N/m² b) 59.47 N/m2 d) 52.31 N/m² Compute the velocity at 40 mm from the center of the pipe. a) 5.485 m/s b) 6.325 m/s c) 7.458 m/s d) 8.569 m/s
- In a dyehouse, the water flow rate passing through a pipe with radius r is Q = 0.05 m3 / s and its density is ρ = 1000 kg / m3. The pipe friction coefficient is Cf = 0.0075 and the local loss coefficient is K = 10. Pressure drop in the pipe; LaTeX: \ Delta P = \ rho \ left (2Cf \ ast \ frac {L} (r} + K \ right) \ frac (V ^ 2} (2) ΔP = ρ (2Cf * Lr + K) V22 where the water velocity in the pipe can be calculated with V = Q / (r2). What should be the radius of the pipe so that the pressure drop that will occur in a pipe of L = 100 m length does not exceed =P = 200 000 N / m2? State the tolerance value provided by the result you found.PROBLEM 2 The pipe bend shown is in a horizontal plane. Oil with a specific gravity of 0.86 enters the reducing bend at section A with a velocity of 3.2 m/s and a pressure of 150 kPa. Neglecting head loss, determine (a) The velocity at section B, V (m/s) (b) The pressure at section B, ps (kPa) (с) Fмх (N) (d) FMY (N) (е) Fpx (N) (f) Fpy (N) (g) The x-component of the reaction by the bend, FRx (N) and (h) The y-component of the reaction by the bend FRY (N). de = 100 mm B- da = 150 mm 30°Assuming that pressure will increase at a uniform rate and there is no damping of the pressure wave. Water from a reservoir that flows through a 650mm pipe at 1.8m/s is completely stopped by a closure of a 160 m valve from the reservoir. The thickness of the pipe is 25mm, bulk modulus of water is 2.2x10⁹ Pa and E of steel is 1.4x10¹¹ Pa. Determine the following: a. Celerity of the pressure wave b. Equivalent bulk modulus of water c. Pressure on the pipe after closure of the valve d. Time required to avoid water hammer e. Water hammer pressure of the velocity will decrease to 1.2m/s f. Maximum permissible discharge after the outlet valve closure. ANSWER: d) t = 0.256 sec. e) Ph=pCAV = 749.8476 kPa f) Q = AV = 0.597 m³/s a) C = 1249.746m/s b) k' = 1.562x10⁹ Pa c) Ph=pCV = 2249.5428 kPa
- An oil with p=900 kg/m² and v==0.0002 m/s flows upward through an inclined pipe as shown in Fig. E6.4. The pressure and elevation are known at sections 1 and 2, 10 m apart. Assuming d=6 cm 10 m P,= 250,000 Pa 40 P,= 350,000 Pa, z, =0 steady laminar flow, (a) verify that the flow is up, (b) compute h, between I and 2, and compute (c) Q. (d) V, and (e) Re Is the flow really laminar? mpgd'h Q = 128µL 3,431,600 66 10 & Density of Air p = 1.205 kg/m 364 S444 D176= 15 14 0 6 +Go Coefficient of viscosity for air = 1.80 x 10-5 he 151 355m Force of gravity 9.807 Density of waterp 998 kg/m? %3D Coefficient of viscosity (water) u = 0.001 kg/(m.s) For gasoline at 20°C, from the Table p= 680 kg/m³,y = pg, g =9.81d=3.3m b=2.4m Find hydraulk radiusQuestion 4 A 150 mm diameter pipe is connected to a large tank with a bellmouth inlet. The pipe is carrying oil (specific gravity 0.85) with an absolute viscosity of 0.0056 N-s/m² and the roughness elements of the pipe wall is estimated as k = 0.9 mm. (a) Above what flow rate will this pipe behave as a fully rough pipe? (b) Below what flow rate will it behave as a smooth pipe?