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A square footing 2 meters by 2 meters is to be constructed 1.22 meters below the ground surface. The groundwater table is located 1.82 meters below the ground surface. The subsoil consists of a uniform, medium dense, cohesionless soil with the following properties:
Unit weight=18.53 kN/cubic meter
Angle of internal friction=32 degrees
Determine the foundation soil's allowable bearing capacity if a factor of safety of 3 is used.
Water at 20 C flows in a conduit with a cross-section shaped in the form of an equilateral triangle. The cross-sectional area of the conduit is 100 sqaure meters and e=0.045 mm.
What are the quantitative measures of reliability (discuss measures for hardware, software, personnel, facilities, and data)?
Given for a simple curve: R = 500 ft, I = 58º08'40" and the station of the PI is 38+17.25. Set up the field notes for staking out the curve with deflection angles and incremental chords.
A reverse osmosis plant desalinates 5X10^6 L/day of feedwater containing 1500 mg/L of salts, yielding 3X10^6 L/day of product water with 75 mg?l of salt. What would the salt concentration be in the brine?
When a particle falls through the air, its initial acceleration a=g diminishes until it is zero, and thereafter it falls at a constant or terminal velocity v_f . If this variation of the acceleration can be expressed as a=(g/v^2_f)(v^2_f-v^2)
A flow of 28 m3s-1 occurs in an earth-lined canal having a base width of 3 m, side slopes of 1(vertical) to 2 (horizontal) and the Manning's n value of 0.022. Calculate the critical depth and critical slope.
A client has engaged your consultancy company to undertake a conversion of a warehouse to a residential dwelling in the northern city of Darwin. You are required to check the capacity of a proposed column to ensure it can support a mezzanine floor..
Gaseous oxygen (99% pure, molar basis) is to be produced at a rate of 350ft^3/hr in a Linde single column plant. The column operates at a pressure of 1 atm. Air leaves the compressor at a pressure of 10 atm.
If the difference in weight between the two baskets must greater than 15 lb they will not have the strength to operate the pulley. The King weighs 195 lb, the princess weighs 105 lb, and the prince weighs 90 lb.
One blend that is gaining popularity is E85, which is 85% ethanol and 15% gasoline. E85 is 80% cleaner burning than gasoline alone, and it reduces our dependency on foreign oil. But a flex-fueled car costs $1,000 more than a conventional gasoline-..
Find the coeficient of friction between the trusses and the inclined. Three trusses are 1m long 1kg each.
Soil is excavated from a borrow to construct an embankment with a net volume of 50,000 cy with 95% of Modified Proctor maximum dry density of 110 pcf with a Modified Proctor optimum water content of 8%.
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