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A dam spillway is to be tested using kinematic similitude (Froude scaling) with a 1:20-scale model. The model flow has an average velocity of 0.7 m/s and a flow rate of 0.06 m3/s.
Design a rectangular channel contraction from width b1 (upstream) to width b2 (downstream). Assume uniform flow approaches the contraction (i.e. normal depth approaching the channel contraction).
Make a sketch indicating the incorrect and correct positions of such an original section corner and also the positions of the adjacent corners used in relocating that corner
under what circumstances is there an exception to the general law that an identified original section corner controls the positions of the boundary lines meeting at or passing through the corner
The wind blows horizontally in a direction which is parallel to one of the diagonals of the cross section. Careful measurement shows that, at height y from the ground, the magnitude of the wind velo
A dam located in a channel of rectangular cross-section which carries water flowing at a rate of 8.75m3/s. The depth of water upstream of the dam is 2.5m. the channel is 5m wide,
Find a solid steel shaft to transmit 100 hp at a speed pf 1200 rpm, if the maximum shearing stress is not to exceed 7500 psi.
A series of small packages, each with a mass of 0.5 kg, are discharged from a conveyor belt. Knowing that the coefficient of static friction between each package and the conveyor belt is 0.4,
A well of radius 0.4 ft produces water from an unconfined aquifer with K = 12 ft/day. The well is located 850 ft from a large water body that acts as a constant head boundary.
a room having a total heat gain of 35,000 btuh is to be maintained at 80 DB and 62 WB. the air is supplied to the room at 60 DB and 55 WB. find the quanity of air to be supplied.
Find the cooling load (in tons of refrigeration) for a room supplied with 10,000 CFM of 95 DB outside air with ratio of 105 gr/lb. The room is to be maintained at 78 DB and humidity ratio of 71.5 gr
A 4-m-long steel rod must not stretch more than 3 mm and the normal stress must not exceed 150 MPa when the rod is subjected to a 10- KN axial load.
An 18-m-long steel wire of 5-mm diameter is to be used in the manufacture of a pretested concrete beam.It is observed that the wire stretches 45 mm when a tensile force P is applied.
The bottom bar is made up of an aluminum bar and a steel bar, each 10 in. long placed in the parallel configuration at 70 F. That is also heated to 300 F.
Assume the ledge has the dimensions shown and is attached to the building with a series of equally spaved pins around the circumference of the building.
estimate the total cost and cost per linear foot for furnushing and driving steel-sheet piling for construction of the basement of a building, 150 by 240 ft. the piles will be 22 in. wide, 18 ft. lo
A quality of water within a piston-cylinder assembly executes a Carnot power cycle. During isothermal expansion, the water is heated from saturated liquid at 50 bar until it is a saturated vapor.
Parallel pipes, fixed overall H, ?EGL or hl = 75'. Elevated Tank A water surface is at El 625, 3000' away is Tank B with free surface El 550 They are connected by a 12" dia cast iron pipe.
Use MATLAB to find, and to graph. the unit-sequence response of the system - Graph the magnitude and phase of the DTFT of x[n - 2].
Determine the size PFR and CFSTR's required to treat 4000 m3/day of sewage with a BOD of 200 mg/L. State law requires a minimum of 92% removal and BOD follows first order kinetics.
The town of Obfisquitory wishes to use 4 equal volumes of CFSTR's in series to disinfect 2 million gallons per day (mgd) of water containing 1000 coliforms/L to the maximum required concentration (M
What is the maximum length of trench that can excavated by hand economically rather than by a trenching machine. it cost 900.00 to transport a trenching machine to the job and back to the storage ya
An automobile having a mass of 900 kg initially moves along a level highway at 100 km/hr relative to the highway. It then climbs a hill whose crest is 50m above the level highway and parks at a rest
An object weighs 289.2N in air and 186.9N in oil of specific gravity is 0.75 find its volume and relative denesity
What is the maximum length of trench that can be excavated by hand economically rather than by a trenching machine. It will cost $900.00 to transport a trenching machine to the job and back to the s