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A five story office building is to be built on a site underlain by moderately uniform soils. Bedrock is at a depth in excess of 200m. The building will be 50m wide and 85m long and the foundation will be founded at a depth of 1m below ground surface. In addition the water table is at a depth of 3 meters. Above the water table the soil mass unit weight is 16kN/m 2 . Below water table the saturated unit weight is 19.5kN/m 2 . The maximum column load is 333,000lbs. Soil allowable bearing pressure is 2000#/sft. Recommend the number and depth of borings. (Make sure you convert units).
Suppose in 100 years energy consumption is still 330 Ej/yr, but coal supplies only 20 percent of total demand, natural gas supplies 30 percent, and oil 10 percent. The remaining 40 percent of demand is met by noncarbon-emitting sources.
Calculate expected error L if a theodolite has direct angular accuracy of 10" and a distance of 1500m was measured.
If A and B are both made of wood and are 3/8 in thick, determine to the nearest ¼ in the smallest dimension h of the support so that the average shear stress does not exceed \tauallow = 300 psi.
Knowing that the tension is 120 lb in AB and 40 lb in AD, determine graphically the magnitude and direction of the resultant of the forces exerted by the stays at A
Important information about Short essay, In managing the uncertainties of ethical issues in engineering, what are some questions that we may ask to limit some of the risk
What is the smallest diameter pipeline that may be used to carry 6.3 L/s (100 gpm) of water if the flow is to be laminar
A moves downward a distance of 3.6 ft, and mass B moves a distance x. What is the value of x 2. Find the speed of mass B for a given speed of mass A The system is released from rest and mass A moves downward at a constant speed of 8.0 ft/s.
An invar tape haviong a nominal length of 100ft and a croos -sectional area of 0.005sq in. was standardized under a tesion of 15lb. when the tape wa
Using the method of Lee et al., predict the temperature required in an isothermal plug flow incinerator to reduce the xylene level in a waste gas from 100 ppm to 10 ppm. Assume a residence time of 0.7 sec.
A flat plate weighing 220 N slides down a 15 degree incline with a velocity of 2.5 cm/sec. A thin film of oil with a viscosity of 1.29 N.sec/m^2 separates the plate from the ramp. if the plate is 50 cm by 75 cm, calculate the film thickness in cm.
What do you understand by the term preservation of timber. Briefly explain the different methods of preservation adopted.
Show that the head loss in a hydraulic jump formed in a rectangular channel may be expressed as : change in E =(y2 - y1)^3/(4y1*y2) where y1 and y2 are depth of flow before and after jump.
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