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1.Two pipelines of equal length and diameters 15 cm and 10 cm respectively connect two reservoirs such that the pipelines are in parallel. The difference in water levels in the reservoirs is 3 m. If the friction is assume to be equal, the ratio of discharge in the 15 cm diameter pipe to 10 cm diameter pipe is what?
2.Determine the stopping sight distance for a 5-lane, 2-way highway with a 4.5% grade. The wet coefficient of friction is 0.30 and the design speed is 55mph. The road is abutted by an elementary school with considerable pedestrian traffic. Winter weather is often a problem with temperatures getting into negative numbers.
A tow truck is searching a city street at 30 mi/h for illegally parked vehicles. It travels over an equal tangent vertical curve with an initial grade of +3.5% and final grade of -4.0%.
Determine suitable footing dimensions to suit the bearing capacity of 100kPa with a factor of safety 2.4
A freeway on a level terrain carries a volume of 4500 veh/hr onfour 11-foot lanes in one direction. the vehicle mix is 75%passenger cars, 10% trucks, 10% buses and 5% recreational vehicles.lateral obstructions are located at a distance of 5 ft on the..
How many hours should it take an articulated wheel loader equipped with a 4 yd3 bucket to load 3,000 yd3 of gravel from a stockpile into rail cars if the average haul distance is 300 feet one way
Calculate the volume of a cylinder that contains 60 lbm of carbon dioxide at 230°F and 23 psig pressure. Assume atmospheric pressure to be 14.7 psia.^4
An airport runway has a capacity of 60 operations (ie landing and take-offs) per hour. In a particular hour, there are 30 landings evenly spaced over the hour. During that same hour, 20 departing aircraft uniformly arrive at the runway within a 20..
Assuming that the shear stress in the bolts is uniform, determine the number of bolts necessary to make the maximum shear stress in the shaft equal to the shear stress in the bolts. Each bolt has a diameter d.
Calculate the final pressure, temperature when the nitrogen isreduced to that volume. What is the modulus of elssticity at thebeginning and end of the compression. k=1.4
An insulated system contains two solid blocks in contact with each other; one hot and the other cold. After heat transfer over some time, thermal equilibrium is established in the container.
Submarines change their depth by adding or removing air from rigid ballast tanks, thereby displacing seawater in the tanks. Consider a submarine that has a 700m3 air-ballast tank originally partially filled with 100m3 of air at 1500 kPa and 15oC. For..
Ammonia vapor flows through a valve. It enters the valve at a pressure of 8 bar and a temperature of 120C and after going through a throttling process it exits at a pressure of 3.5 bar.
Steam enters a nozzle at 400oC and 800 kPa with a velocity of 10 m/s, and leaves at 300oC and 200 kPa while losing heat at a rate of 25 kW. For an inlet area 0f 800 cm2, determine the velocity and the volume flow rate of the steam at the nozzle ex..
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