DETERMINATION OF MPN USING POISSON DISTRIBUTION 1. determine the MPN/100 mL Using the Poisson distribution [ for a water sample from which 10, 1, and 0.1 mL/100 mL dilutions resulted in four, three, and five positive-lactose-formation tubes, respec- tively.

Q: samples. Determine the MPN/100 mL using (a) the Poisson distribu- tion [Eq. (2.90)], (b) the MPN…

A: Most probable number (MPN) = It is a method to analyze the numbers of bacteria in a sample of water.

Q: In a constant head permeability test the coefficient of permeability, k, was found to be 2.1 x 10-3…

A:

Q: 2. Please design a Type II settling tank that receives a 1000 m3/day of a waste stream, after…

A:

Q: The 3 day BOD of a sample is 75mg/l with k(base e) is 0.345/day. The amount of BOD remaining in the…

A: Given 3 day BOD 75 mg/lConstant 0.345/dayTo find out BOD after 8 days

Q: In a liquid limit test on a fine-grained soil, using the Casagrande apparatus, the following results…

A:

Q: A BOD analysis was conducted on a raw sewage sample. 300 mL of sample was placed in a 300 mL BOD…

A:

Q: (b) What is the dry unit weight of the soil in pcf? (c) What is the void ratio of the soil? (d) What…

A: Given,  Total unit weight, γt = 124 pcf  Specific gravity of solid, Gs = 2.66  Average water…

Q: In a falling head permeameter test, the head drops by 5 cm in 10 minutes from the initial head of 30…

A:

Q: The 3 day BOD of a sample is 75mg/l with k(base e) is 0.345/day. The amount of BOD remaining in the…

A: Given, 3 days BOD= 75mg/l k= 0.345/day      (Base e) Find out:  Amount of BOD remaining after 8…

Q: 2.61. The following MPN test results were obtained for three water samples. Determine the MPN/100 mL…

A:

Q: Determine the relationship between the observed/apparent value (EX) VERSUS that of the true value…

A: Given data- observed/apparent value= EXtrue value ETiron-phenanthroline method-  ppm Fe in a water…

Q: A: Density bottle test: Sample 1: Dal = 0.9982 x (83.49-62.12) (251.3162.12) - (264.41-8 = 2.58 g/ml…

A: SampleDensity, g/cc12.5822.6132.6242.5352.5662.57

Q: 10-1. In a 5-day BOD test, the initial DO concentration was 7.8 mg/L and the final concentration was…

A:

Q: A Standard Proctor Test was completed according to Method A described in Chapter 12. The following…

A:

Q: A Standard Proctor Test was completed according to Method A described in Chapter 12. The following…

A: Standard Proctor test: By eliminating air spaces, compaction densifies soil by making it more…

Fluid Materials

In general terms, anything that flows can be termed as a fluid. In other words, a fluid is any substance that cannot resist shear forces and deforms continuously under the application of external shear forces. Fluid materials differ completely from solid materials such as metals and alloys. For instance, if we consider two infinitesimally small cross-sectional areas of fluid materials and solid materials, and apply shear forces to these elements, both the elements will undergo deformation. Upon releasing the shear force, the element of the solid materials will regain its original orientation, but the element of the fluid materials will keep on deforming continuously under the action of the shear force.