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Prepare a preliminary design of a system to collect dust from a plant under the following conditions:Sample of Dust: 50% by wt. below 30 micrometers; 80% by wt. below 70 micrometersDensity= 2.5 g/cubic cmGas Flow Rate: 30,000 acfm (actual cubic feet per minute) +- 5000Particle Loading: 0.5 to 4 grains/cubic feet, avg=1.5 grains/cubic footEmission Limit: 1.5 lb/hrDesign a cyclone collection system which might meet the minimum limits. Provide a reasonable pressure drop through the cyclone (i.e., 8-10 in H2O)
A roadway is to be designed on a level terrain. The roadway is 500 ft. Six Cross Sections have been selected at 0 ft, 100 ft, 200 ft, 300 ft, 400 ft, and 500 ft. . The cross sections have areas of 130 ft2, 140 ft2, 70 ft2, 110 ft2, 80 ft2, and 25 ..
The length is 10 feet. What is the nominal strength if Fy=50 ksi. Note that this is a slender-element compression member, and the equations of AISC section E7 must be used
an unconfined compression test was conducted on a cylindrical clay specimen with the following properties: Peak load at failure = 4.5lb, diameter of sample = 1.2 in.
A steel bar is attached to a wood support beam with four 20 mm diameter lag screws. The steel bar is 75-mm-wide by 6-mm-thick. For the steel bar, the yield strength is 260 MPa and the ultimate bearing strength is 350 MPa.
You are to design a chlorination tank for killing microorganisms in the effluent from a wastewater treatment plant. It is necessary to remove 99% of active bacteria in a wastewater flow of 120 m 3 /hr.
if 25 acres of land recieved 3.5 inches of water from the irrigation district, determine volume of water on the land in acre-ft
A large drainage channel has a trapezoidal cross section with a bottom width of 75 feet and bank side slopes of 4:1 (H:V). If the normal depth of flow is 25 feet, compute the normal flow rate through the channel (Q in cfs).
The sag curve has a 70 mph design speed and G1 = -6% G2=+3%. Determine the minimum necessary clearance height of the overpass and the resultant elevation of the bottom of the overpass over the PVI.
The service live load is three times the dead load. The 4-in leg contains a single line of 7/8 inch diameter bolts, and the 6 inch leg contains a double gage line of 7/8 inch diameter bolts.
What are two types of variables that can be used for values that are less than 128, and describe what is the difference between the variables, how to declare them, and the memory allocated and the numerical range for both.
Determine the horizontal and vertical components of reaction at the pin supports at A and B and indicate direction. Take F1 = 7 KN, F2 = 6 KN, and h = 1 m.
Activity Description Duration Immediate Predecessors ST Start milestone - Activity Description duration Inmdiate predesesor ST Start milestone - - A excavate st. 1 4 ST B Order & steel del. work 7 ST C Formwork st.
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