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Answer the questions below:
1. Discuss how to conduct soil boring and sampling.
2. Discuss how to conduct SPT and CPT. Discuss the difference.
The train passes point A with a speed of 30 m/s and begins to decrease its speed at a constant rate of at = - 0.25 m/s2. Determine the magnitude of the acceleration of the train when it reaches point B, where sAB = 412 m.
Figure 13.17 shows proposed curb locations, together with grade stakes offset from the north-side curb. The straight section of curb begins at 0 + 52 and ends at 8 + 38 (centerline stations). With the aid of a sketch, show how these two chainages ..
A heat pump has a COP of 2 using a power input of 3 kW. Its low temperature is T0 and its high temperature is 80?C, with an ambient at T0. Find the fluxes of exergy associated with the energy fluxes in and out.
What is the effective stress 25 feet deep if the specific weight of the dry soil (dry unit weight) is 120 pcf and the water table is 12 feet deep?
When the ambient air is at 70 degrees Fahreneit, 14.7 psia, and contains 21% oxygen by volume, 4.5 lb of air are pumped into a scuba tank, capacity 0.75 ft^3. What volume of ambient air was compressed
A lagoon with volume 1,200 m3 has been receiving a steady flow of a conservative waste at a rate of 100 m3/day for a long enough time to assume that steady-state conditions apply. The waste entering the lagoon has a concentration of 10 mg/L.
Examine the effect on nozzle exit velocity of having a higher inlet temperature but the same pressure as without the afterburner. Are these nozzles operating with subsonic or supersonic flow?
It has been determined experimentally that the reaction follows frst order kinetics with respect to both oxygen andhydrogen sulfide concentrations: d[H2S]/dt =-k[H2S][O2]
A single crystal of zinc is oriented for a tensile test such thatits slip plane normal makes an angle of 66.0° with the tensileaxis. Three possible slip directions make angles of 30°,48°, and 78° with the same tensile axis.
If aerosol particles were considered to be extremely large gas molecules, what would the gram molecular weight of a gas of 1.0 micron diameter particles having a density of 1000 kg/cubic meter.
Assume that there were 1,100,000 vehicles making a 28.5-mi round trip per day, the average vehicle emission rate for VOCs is 1.3 g/VM , and the molecular weight of the VOC emissions from the mobile sources can still be represented by that of metha..
A POTW treats 4 MGD. The SBR is 0.25 MG. How many tanks do you need? Assume that the tank already has 25% of Its volume in sludge and that the fill time is 3 hours, the react time is 2 hours (the total aeration time is 4 hours), the settle time is..
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