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A series of cold rolling operations is to be used to reduce the thickness of a plate from 50 mm down to 25 mm in a reversing two-high mill. Roll diameter =700 mm, and coefficient of friction between rolls and work = 0.15. The specification is that the draft is to be equal on each pass. Determine
(a) minimum num-ber of passes required, and
(b) draft for each pass?
A rectangular channel carries a flow of 10 cfs/ft of width. Plot a curve of specific energy vs depth. Compute the minimum value of specific energy and the critical depth. What are the alternative depths for Es = 5.0
A combined footing is subjected to an exterior 16 in. x 16 in. column abutting the property line carrying a total service load Pw = 300,000 lb and an interior column 20 in. x 20 in
Ship A leaves port sailing in a direction 60 degree C north of due east and sails for 12 hours at 10 knot . Sheep B leaves the same port 3 hours later and sails due east at 25 knot for 9 hours. How far apart (in nautical miles) are they at this time?..
If the radius of the interstitial sites( i.e. the radius of SPACE available rather than the radius of the atom that is placed in that space) in an FCC structure are determined according to 2r_interstital + 2r_Fe= a, explain why the atomic packing fac..
Find the required diameter of the force main PA, (dPA), if the pressure at point A is not allowed to drop below 370 kPa. Determine the required diameter of pipe BC, (dBC), if the maximum allowed head loss in the network ABC is 0.003 m/m.
A subsurface detention basin is installed beneath a street to help prevent flooding. Water from the rain is chanelled into the basin and begins to infiltrate into the ground when it reaches 1ft.
How does pressure vary with volume, and what is the heat transfer for the process?
Reproduce the diagram of the beam and add in where you would put conceptual pins to convert to a determinate beam for approximate analysis of them beam
An 8-in-diameter pipeline (f=0.028) 500 ft long discharges a 3-in-diameter water jet into the atmosphere at a point that is 250 ft below the water surface at intake.
1-The minimum size of a ceiling joists is _______________? 2- Which of the following is not required on truss drawing ?
A geotechnical report has suggested an allowable bearing pressure of 200kPa. Determine the minimum size of the pad footing 2 metres wide for a steel column if a factor of safety of 2.0 is recommended
A 25' wide and 35' high concrete dam with a 25' deep and .3' wide cutoff wall at theupstream end of the dam is retaining 25' of water. Bottom of this dam is 5' below the surface of the soil. Assuming zero tail water, please answer the following quest..
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