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A 6-lane freeway horiz. alignment has a 1200' C.L. radius going into a tangent and then a reversing 1800' radius. How much tangent distance between the two curves is needed to meet the superelevation runoff requirements?
Assume that at one end of the column a clockwise moment of 100 k-ft is present, and that at the other end of the column a counter-clockwise moment of 25 k-ft is present. you may assume that k= 1.
The double collar B is pin-connected together such that one collar slides over the rotating rod and the other slides over the horizontal curved rod, of which the shape is described by the equation r= 1.5(2-cos)
what is the definition of critical state. explain at which stage a critical state may be approached in a drained triaxial text on a overconsolidated clay using stress path and strain-strain plot.
A roadway has a 4% grade intersecting a -7% grade at at station 18+50.00. The grades are connected by an 800 foot vertical curve. A sign is proposed to be installed at Station 15+00.00. The bottom of the sign is 7 feet above the roadway.
Find the depth and the top width of a v-notch capable of discharging a maximum of .7m^3/s and such that the head shall be 75mm for a discharge of 5.6 liters per second.
A radar device is installed at a location on the roadside to measure instantaneous speeds of vehicles passing that location. The initial four vehicles' speeds are listed. Calculate the space-mean speed of these four vehicles.
A water main springs a leak and the geyser is estimated to be 20 feet in height. It is also estimated that about 300 gallons per minute is leaking based on flow into gutter. About how big is the hole in the water pipe
Calculate the equilibrium concentration of dissolved oxygen in 15oC water at 1 atm, and again at 2000 m elevation.
A large tank is used to calibrate the reading from a flow meter. Measurements of the system weight as a function of time are made. Water enters the tank vertically from the flow metering system at a speed of 20 ft/sec through a 1.5 in.
Conduct either a qualitative or quantitative risk assessment on this project. Identify the risk factors that you consider most important for the suspension bridge construction. How would you assess the riskiness of the project? Why?
Air flows steadily between two sections in a long, straight portion of 4 in. inside diameter pipe (D1=D2). The uniformly distributed temperature and pressure at each section are p1=100psia, p2=18.4psia, T1=540 R and T2=453 R.
A trapezoidal channel with a bottom width of 4 feet and side slopes 2:1 (H:V) and a bed slope of 1 percent conveys a discharge of 50,000 gpm. Assume n = 0.025. Compute the normal depth.
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