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Crude oil (S = 0.86) is to be pumped through 3 miles of 18-in.-diameter cast iron pipe. The elevation rise from the upstream to the downstream end is 640 ft. If an available pump is the 240-mmdiameter radial-flow machine of Fig. 12.6, how many pumps in series are required to provide the most efficient operation? Find the required power.
Estimate the greatest value of the elastic modulus that can be obtained by long randomly oriented ?bers of E-glass embedded in an epoxy resin if the volume fraction is 40%. Assume that the modulus of the epoxy is 5 GPa.
Diffusion in liquids commonly assumed a rigid sphere in a continuum. When would this model be most accurate?.When could it fail? Diffusion varies with viscosity to the (+1) power in gases but to the (-1) power in liquids. Why?
a cold heading operation is performed to produce the head on a steel nail. the strength coefficient for this steel is
The figure on the right shows an approximated pressure distribution on an airfoil and the direction of incoming flow. Alpha is 10 degrees, the pressure distribution on the top is 3n/m and on the bottom is 1n/m. The chord Length is 1 meter.
the mass flow rate of water in a tube is measured using a beaker to catch water during a timed interval. the nominal
the reciprocating radial roller follower of a plate cam profile with 0.7 in offset is to rise 2 in with simple harmonic
suppose you needed to reduce the diameter of a rod 20 and could choose between drawing it or extruding it through the
this problem is problem 3.73 of the 8th edtion of this book. there are solutions from a previous version floating
a 4 diameter pipe elevates water vertically 100 feet. if the flow rate is 10 gpm a what is the velocity at the bottom
what is the maximal attainable speed of a bullet in m/s?
A pipe system carries a steam-water mixture at 250 psi, 95% quality. A leak develops in the pipe allowing the fluid to escape to the building which is at atmospheric pressure. Treating the leak as a throttling process, find the state of the escaping ..
Small low-power fan-motor combined units are available in the market and their efficiency is estimated to be 30 percent
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