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water from a treatment plant is pumped into distribution system at a rate of 4.38 m^3/sec, a pressure of 480 kpa and a temperature of 20 degree celcius. The pipe has a diameter of 750 mm and is made of ductile iron. Estimate the pressure 200m downstream of the treatment plant if the pipe remains horizontal. Use the moody diagram to determine the friction factor ( you can also use the Swaimee-Jane equation). After 20 years in operation, scale buildup is expected to cause the roughness of the pipe to increase by a factor of 10. What is the effect of this on water pressure 200 m downstream of the plant? Say, Water flows at a velocity of 2m/sec in a 300 mm new ductile iron pipe. Estimate the headloss over 500m
On a specific westbound section opf highway, studies show that the speed density relationship is u=uf *[1-(k/kj)^3.5]. It is known that the capacity is 4200hehicle/hr and the jam density is 210 veh/mile.
A tank is divided into two equal chambers by an internal diaphragm. One chamber containes methane at a pressure of 500 bar and a temperature of 20 C, and the other chamber is evacuated.
Pore water pressure is to be observed during the construction of the embankment. Calculate the pore water pressure which must not be exceeded at any point in the clay layer 9 m below the surface of the embankment to ensure a shear strength of 100 ..
582 nm photons are used in a photoelectric experiment. An electron is just released from metal with little or no kinetic energy at this frequency. What is the work function for this metal
determine the total dead load, per foot of length, each beam must support.
A freeway exit ramp has a single 12-foot lane and consists entirely of a curve with a central angle of 90 degrees and L=628 feet. If the distance cleared of obstacles is 19.4 feet from the centerline, what design speed was used
how to find degree of kinematic indeterminacy
A contractor has installed a silt fence around an area that is semi-circular and level to prevent soil from the construction site entering nearby streams. The diameter of the semi-circle is 1000 feet.
Draw the influence line for the support reaction at A and calculate the support reaction at point
What are the different dimensionless groups that describe a golf ball. A golf ball has two velocities, a spin velocity and a forward velocity.
The discussion must address phase angle relationships of current and voltage. The answer must include the effect of source frequency on the voltage drops across the resistor and the inductor at very low and very high frequency values.
The pipe has an outside diameter of 60mm and an inside diameter of 50mm. Find the torsional moment T if the maxiumum shear stress is 80MPa.
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