For a disc-shaped particle of diameter 2.55 mm and length 1 mm, calculate the following diameters: d) the sieve diameter (width of the minimum aperture through which the particle will pass); e) the projected area diameters (diameter of a circle having the same area as the projected area of the particle resting in a stable position). Explain

For a disc-shaped particle of diameter 2.55 mm and length 1 mm, calculate the following diameters: d) the sieve diameter (width of the minimum aperture through which the particle will pass); e) the projected area diameters (diameter of a circle having the same area as the projected area of the particle resting in a stable position). Explain

Principles of Foundation Engineering (MindTap Course List)

8th Edition

ISBN:9781305081550

Author:Braja M. Das

Publisher:Braja M. Das

Chapter3: Natural Soil Deposits And Subsoil Exploration

Section: Chapter Questions

Problem 3.1P

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For a disc-shaped particle of diameter 2.55 mm and length 1 mm, calculate the following diameters: a.) the sieve diameter (width of the minimum aperture through which the particle will pass); b.) the projected area diameters (diameter of a circle having the same area as the projected area of the particle resting in a stable position).
An oil tanker has an accident and oil pours out at the rate of 200 gallons per minute. Suppose that the oil spreads onto the water in a circle at a thickness of 1/5". Given that 1 ft³ equals 20 gallons. Determine the rate at which the radius of the spill is increasing when the radius reaches 600 ft.
A particle with a diameter of 1 mm and specific gravity of 3.0 is release into a 6 m sedimentation tank containing water at 25 ºC. The density and dynamic viscosity of water are 1000 kg/m3 and 1.03 cP. How long will the particle take to travel a total distance of 6 m? How far does the particle travel in 3 seconds?
A calibration test of a 15-mm diameter circular sharp-edged orifice in a vertical side of a large tank showed a discharge of 760 N of water in 60 seconds at a constant head of 6.50 m. Measurement of the jet showed that it traveled 3.20 m. horizontally while dropping 450 mm. Compute for the nearest value of the coeficient of discharge. 0.64027 0.64702 0.67240 0.60724 None of the above
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Write the simplified equation for estimating TSS as a function of Q. Determine the 2 parameters associated with this relationship if TSS is 89 mg/L at Q = 8 m 3 /s and TSS is 109 mg/L at Q = 12 m 3 /s? What will be the TSS if Q is 20 m3 /s?
A stone dropped in a pond sends out a circular ripple whose radius increases at a constant rate of 4 ft/sec. After 12 seconds, how rapidly is the area in-closed by the ripple increasing? *
Compare flow separation for a laminar versus turbulent boundary layer. Specifically, which case is more resistant to flow separation? Why? Based on your answer, explain why golf balls have dimples.
In the figure shown, theodolite is being set up at point "A" and "C", and subtense bar at point "B". The surveyor sighted the subtense bar from point "A", vertical angle = -13 degrees, subtended horizontal angle = 4 degrees, while from point "C", vertical angle = +31 degrees, subtended horizontal angle = 1.5 degrees. If all HI (Theodolite and Subtense Bar) = 1.50 m. a) What is the horizontal distance from A to C? b) What is the difference in elevation between A and C?