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For a design storm specified for an urban area in Tennessee, the depth of rainfall is 2.5 inches (6.35 cm). Initial abstraction in depressions on the pervious and impervious areas was estimated at 0
Determine the depth of a French drain (saturated depth) if the width is 3.0 feet, the effective permeability of the aggregate is 2000 ft/day, and the rate of discharge for 100 feet of trench is 1000
The vertical effective stress at a certain point in a loose sand is 1000lb/ft^2. If an earth quake were to occur, how much excess pore water pressure would need to develop at this point for liquefac
A site is underlain by a soil that has a unit weight of 118 lb/ft^3. From laboratory shear strenght tests that closely simulated the field conditions, the total stress parameters were measured to be
Determine a set of rectangular beam design values (b),( d) and (As) area of steel, that will be needed to support a factored bending moment (Mu=450 Kip-ft). Use (f'c=4,500 psi) and (fy=40,000 psi).
Calculate the area of the reinforcement required( As) in a singly reinforced rectangular beam required to carry an ultimate factored bending moment ( Mu = 140 Kip-ft). Use( f'c=3,000 psi) and( fy=40
What is the total deformation in a 15' 2'' square steel hanger that supports a 36000 pound load
What is the total moment M due to the force F about point O. Assume that moments acting counterclockwise about point O are positive whereas moments acting clockwise are negative.
Objective of this task is to collect and obtain information on variables of interest in a systematic way to prepare the required data for studying the decline rates of Bakken wells.
Two remediation options are being considered for a contaminated land area formerly used for industrial operations. Option 1 involves removing all of the contaminated soil over a two-year period at a
An emission control system for a new car costs $750 and reduces NOx emissions from 0.4 g/mile to 0.18 g/mile. Assume the car is driven 10000 miles per year, and the life of the emissions control sys
The headwater elevation cannot exceed 544.4 ft MSL, without overtopping the roadway embankment. Find the required diameter for (a) a single barrel culvert and (b) twin barrels assuming a square edge
Design a one way slab to support a uniform live load of 300 psf. The beam is simply supported with a span of 20 ft. Use a reinforcement ration ( Ps) of 0.008 Use f'c=3000 psi and fy=60000 psi.
Determine the energy loss due to the gradual enlargement from a 25 mm pipe to a 75 mm pipe when the velocity of flow is 3 m/s in the smaller pipe and the cone angle of enlargement is 20°C.
For a triangular channel of z=2 side slopes tha tcarries a discharge of 100 cfs at a depth of 5 ft, determine the channel slope S under the assumption that normal flow exists and that n equals 0.022
The 1-hr UH in the table was recorded for a particular watershed. Determine the size of the watershed in acres and then convert the 1-hr UH into a 3-hr UH for the watershed.
A 5-m wide rectangular channel is carrying a flow of 5 cubic meter per second. If the Manning n=0.013 and the bottom slope, So=0.0001, determine the normal depth using a converging iteration.
The discharge is 15 cubic meters per second with a bottom width=10m and side slopes of 1V:2H. If the discharge is increased to 20 cubic meters per second determine the new depth of flow
The wastewater discharge flow rate is 0.3 m3/s. The coliform first-order death rate in seawater is approximated 0.3 h-1. The current carries the wastewater plume toward the beach at a rate of 0.5 m/
The turbidity of the water ranges from 30 to 60 NTU, alkalinity exceeds 100 mg/L, hardness is about 50 mg/L as CaCO3, and the water also contains regulated synthetic organic compounds resulting from
a water of 20 c temprature pupped at 75 kpa to a perforated pipe 5 cm dia. contain 10 hole with the same diameter. the distance between two adjacent hole is 20 cm. what is the discharge of each hole
To determine the elevation of a point B from the elevation of a point A, which is 511.6 ft. When the transit was set up over the point A, the height of the transverse axis above that point was 4.92
A circular beam length 36 inches and diameter 1 inch is supported on the left end by a pin joint and the right end with a roller. The beam is under axial tension with forces of 1000 lbs out of each
Please let me know whether we can cover these facilities or not and what is micro-biological process in these. If we can provide cover than what will be the effect on its biological process.
A designer intends to use 70 pounds of coarse aggregate in one cubic foot batch of concrete. The bulk specific gravity (Gb) is 2.6 and the unit weight of water is 62.4 lbs/ft3.