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Assignment:
A mining operation utilizes a six inch pump to move gravel from the pit to a sluice box. The pump transfers 130 m3 of slurry each hour, from the pit to the sluice box containing, on average, 100kg of solids per m3 of slurry. The sluice box is fed with slurry for ten (10) hours each day and the mats removed for gold recovery every five days. The average grade of the gravel is 2.0 grams of g/tonne of solid. The operation retrieves two hundred (200) kilograms of concentrate from the mats from which 1040g of gold is recovered. Calculate the following: i. The mass recovery of concentrate ii. Gold recovery iii. Grade of tailings in g/tonne.
Let P=109N. Q=231 N.a=3.2m. And b=2.9m. Type the unit. N. after typing your numerical answer. Determine the value of the force in member AC. Give a positive value if the member is in tension and a negative value if the member is in compression.
The aggregate in the stockpile contains 2.7 percent moisture. If the required compaction is 95 percent of the target, how many tons of aggregate will be needed?
A beam with a 20 ft simple span has cross- section dimentions b= 12" d=12 in and h=25in . it carries a uniform service load of 2450 lb/ft in addition to its own weight. material strengths are f'c=4000psi and fy=60000psi .assume a weight od 150 pcf fo..
A gunite concrete trapezoidal channel with 1:2 side slopes, as ilustrated below, conveys 60 m3/s on a slope of 0.0005. Compute the depth of flow.
The venturi meter is in a 60 cm pipe. What deflection will occur on a mercury-water manometer connected between the upstream and throat section if the discharge is .57 m^3/s. Assume T = 20 C
A circular concrete pipe (n = 0.012) carries a discharge of 450 cfs with a slope of 0.008 and is designed to run no more than 60% full (by depth). What diameter pipe would you recommend
the most famous geyser in the world old faithful in yellowstone national park has a mean time between eruptions of 85
A geotechnical report has suggested an allowable bearing pressure of 200kPa. Determine the minimum size of the pad footing 2 metres wide for a steel column if a factor of safety of 2.0 is recommended
The dimensionless henry's constant for TCE at 25 degrees celsius is 0.4. A sealed glass vial is prepared that has an air volum of 4mL overlying an aquesous volume of 36mL.
The length of the strip is 5 in. Calculate the deflection sensitivity defined as the deflection per degree Fahrenheit temperature difference. Estimate the uncertainty in this deflection sensitivity.
The water table is lowered from a depth of 10' to a depth of 20' in a deposit of silt. All the silt is saturated, even after the water table is lowered. The silt's water content is 26%.
Convert the classification problem defined below into an equivalent problem definition consisting of inequalities constraining weight and bias values.
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