A horizontal curve is being designed through mountainous terrain for a four-lane road with lanes are 10 ft wide. The central angle (Δ) is 40°, the tangent distance is 520 ft, and the stationing of the PI is 2600+00. The coefficient of friction is .08 and the curve’s superelevation is .09 ft/ft. What is the stationing of the PC and PT, and what is the safe vehicle speed?

To design a steam turbine to produce 12,000 hp power. a engineer comsiders using a steady state stean low st 1160fr and engineer considers using a steady state steam flow at 1160°r and 450 psia to drive this steam turbine. the exhaust of the steam is cooled by the lake (vacuum). heat losing to the surroundings is measured at a rate of 555.55 btu/s. (a) sketch the system with the given conditions. (b) neglecting kinetic and potential energy changes from inlet to exit, determine the volumetric flow rate of the steam at the inlet, (ft'/hr). must clearly show unit conversions at crtical terms.