What are the advantages and disadvantages of measuring hydraulic conductivity in the lab? What about in the field?

Q: Define the terms for calculating pore pressure ratio.

A: Pore pressure ratio:

Q: A wide channel has water flowing with a depth of 0.5m and the velocity on the surface is 2 m/s. At…

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Q: Calculate the wall thickness for a cylindrical vessel carrying an internal pressure of 2 ksi. Use…

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Q: For the two-dimensional flow system shown below (units in meters): Express how you will calculate…

A: Flow net is the graphical representation of flow lines and equipotential lines. Flow lines depict…

Q: Calculate the maximum torque that can be applied.  b. If that bar were to be left hollow, with the…

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Q: The velocity of flow in a badly corroded 8.0 cm pipe is found to increase 30% as a Pitot tube is…

A: Given- dia of pipe d=8 cmrough pipeTurbulent flowvelocity-u2=1.30u1y1=1 cmy2=2 cmIt is needed to…

Q: Example 10: An engineering in PVC pipe factory wishes to select a pipe bearing pressure in the…

A: μ(mean) =120 σ(standard deviation) = 8

Q: As a civil engineering student, explain the significance of the study of groundwater.

A: Ground Water Groundwater refers to the water that exists beneath the earth's surface in soil, rock,…

Q: Explain the Relationship between effective stress, total stress, and pore water pressure.

A: Total stress is defined as the stress exerted on the soil mass due to the sum of self weight of soil…

Q: Discuss a problem in the civil engineering field that relates with the concept of seepage in soil.…

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Q: A tank in the shape of sphere is filled with fluid and then pressurized. The diameter of the tank is…

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Q: How is the height of maximum capillary rise of water in soil affected by temperature?

A: The capillary rise in soil is defined as phenomenon in which a rise in liquid above zero pressure…

Q: One shaft is in torsion as shown below. If the magnitude of shear stress at point A is 338.3 MPa,…

A: Given: Shear stress at point AζA=338.3 MPa. From the figure, Distance of point A from the…

Q: Explain why the pressure does not vary linearly with depth in compressible fluids?

A: We know that pressure is given by                              P= e.g.h             e-density of…

Q: Define hydraulic conductivity

A: Hydraulic Conductivity Hydraulic conductivity is a physical property which measures the ability of…

Q: Define the Determination of preconsolidation pressure ?

A: Soil has the ability to retain the effect of different stresses that have taken place in its…

Q: I'm a little confused about the hydraulic gradient. I thought that the formula was the distance…

A: Given, Ground elevation = 1510 m  Water depth = 5 m

Q: If we use more or less amount of water than consistency limit, what will happen?

A: Let us discuss the effect of water addition on consistency limit on step 2.

Q: Calculate the wall thickness required for a thin-walled cylinder which must withstand a pressure…

A: Given data  Pressure difference (P) = 1.5 MPa  Mean diameter (d) = 200 mm  Maximum stress = 60 MPa

Q: In any design of hydraulic structures, a safety factor should be included. Describe what a safety…

A: The safety factor is defined as the ratio of the maximum value of the load or stress that the…

Q: please answer question c

A: To find center of pressure

Q: essed lengtns 74.98 n tress (psi) exists in the lo

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Q: Kinetic energy correction factor: Define it and explain how to get it. What are its typical values?

A: It is asked to define Kinetic energy correction factor and explain how to get it, What are its…

Q: What is the specific weigth  and density of water?

A: What is the specific weigth  and density of water?

Q: How can downhole drilling fluid parameters be determined?

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Q: 1. Let's go back to our original profile, shown below. Our goal for this example, is to know what…

A: The hydrostatic pressure (or normal pressure) is equal to the pressure gradient of the water…

Q: What do you mean by term hydraulic conductivity? What are the factors which effect the hydraulic…

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Q: What is the difference between pore water pressures under hydrostatic, downward seepage, and upward…

A: This question is related to the Soil Mechanics from Civil Engineering. In this question ask about…

Q: Calculate the minimum wall thickness for a cylindrical vessel that is to carry a gas at a pressure…

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Q: Explain in detail on the concept of effective stress in terms related to soil particle forces.

A: Effective stress can be defined as the summation of forces (normal) to the total area of particle .

Q: A steel rod with a diameter of 12 mm, on which two points were fixed, with a distance of 75 mm…

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Q: 43. In groundwater flow, what are the units of head? a. length/time b. length c. length/time d.…

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Q: QUESTION 6 A 12 inch Schedule 80 natural gas pipe running along the sea-bed at a depth of 7522 ft…

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Q: Calculate the wall thickness for a cylindrical vessel carrying an internal pressure of 1.5 ksi. Use…

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Q: What are the advantages of subsurface water over surface water?

A: Subsurface water can be defined as the water available below the earths surface and surface water is…

Q: b) Next, you tell them that two samples from the site are found to have identical values of absolute…

A: Porosity of soil depends upon two variables i.e. volume of voids and total volume of soil. Identical…

Q: PART II. Answer the questions below and elaborate further. 1. How does a Tension Test be done in a…

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Field applications of hydraulic conductivity

Hydraulic conductivity is one of the hydraulic properties of soil defined as a measurement of the ability of a porous medium to permit water movement or fluid flow through it. It is denoted by the letter K. It is influenced by the density and viscosity of the fluid. It is also called permeability. Hydraulic conductivity is defined as the ratio of velocity to the hydraulic gradient. The different methods used to determine the hydraulic conductivity are laboratory methods (constant head permeability tests and falling head tests), in-situ field methods (pumping in and pumping out tests), small scale field tests (infiltration tests and slug tests), and indirect methods such as estimation from grain size, consolidation test data, and horizontal capillary test. The pedotransfer function (PTF) method is a specific empirical estimating approach employed in the soil sciences is also used to determine the hydraulic conductivity of the soil.