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A cylindrical soil sample, 7.3 cm in diameter and 16.8 cm long, is tested in a Constant Head Permeability Apparatus. A constant head of 75 cm is maintained during the test. After 1 min of testing, a total of 945.7 g of water was collected. The temperature was 200C, and the void ratio (e) of the soil was 0.43. Calculate the "Coefficient of Permeability" in "centimeters per second" (Given, k = (QL)÷(A Δh t)).
Determine the estimated width of flexural cracks that will occur in the 8" (total depth) one-way slab shown in the figure below. Assume bottom clear cover is3/4". is the crack width permissible assuming the exposure is dry air
A foot valve for a pneumatic systemis hinged at B. Knowing that a=28degrees, determine the moment of the l6-N force about point B by resolving the force into horizontal and vertical components
A municipal water plant has four filters that are each 20 ft long by 15 ft wide by 5 ft deep. The demand for water requires that they only operate, on average, three filters per day at a loading of 3 gallons per min / ft^2.
A water treatment plant is being designed for a flow of 1.6 m^3/s. How many rapid sand filters, using only sand as the medium, are needed for this plant if cross-sectional area of each filter is 10 m x 20 m
An offshore drilling rig is being towed out to sea. What is the maximum distance away that the navigation lights can still be seen by an observer standing at the shoreline
Calculate the prismoidal correction and compare the prismoidal volume to the corrected end area volume. Station Left Center Right Area (sq. ft.) 1+00 C7.0/ C8.2/ C8.5/ 256.90 31.3 0.0 24.5 1+50 C5.3/ C5.0/ C3.5/ 207.62 29.5 0.0 21.8 2+00
Determine the normal stress in the rails when the temperature reaches 48oC assuming that the rails (a) are welded to form a continuous track (b) are 10m long with 3 mm gaps between them.
the bailey stone works employs six people. assumming that the density of uncompacted waste is 480 kg/m^3, determine the annual volume of solid waste produce by the stone works assumming a waste generation rate of 1 kg/cap*d.
A 2500-lb car (CD = 0.35, Af = 25 ft^2, and ? = 0.002378 slugs/ft^3) has 14-inch-radius wheels, a drivetrain efficiency of 90%, an overall gear reduction ratio of 3.2 to 1, and drive axle slippage of 3.5%.
A wastewater sample was diluted by turbidity free water; 5ml was diluted to 250 ml. Turbidity of the diluted sample was 2.3 NTU, what is the turbidity of the original sample
Determine the arrival rate assuming that it is unchanged over the duration of the observation period. An approach to a pretimed signal with a 60second cycle has nine vehicles in the queue at the beginning of the effective green.
A 25-mm-diameter shaft .5 m long is pulled through a cylindrical bearing. The lubricant that fills the 0.3-mm gap between the shaft and bearing is an oil having a kinematic viscosity of 8.0 × 10-4 m2/s and a specific gravity of 0.91.
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