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1.An embankment is to be constructed at a 15% moisture content. Material will be placed at the rate of 200 ccy/hr (compacted cubic yards per hour). The specified dry weight of the compacted fill is 3200 lb/cy. How many gallons of water must be supplied each hour to increase the moisture content of the material from 8 to 15% by weight?
2.Determine the location e of the shear center, pt. O, for the thin-walled member having the cross section shown. The member segments have the same thickness t.
determine the dilatation and change in volume of the 200mm length of the rod if A) the rod is made of steel E=200 Gpa v=.30 B)the rod is made of aluminum E=70 Gpa v=.35.
a 60 -m- long steel wire must not strech more than 48mm when the tension in the wire is 6 kn. determine the corresponding value of the normal stress.
Given simply supported beam with an overhang. The beam is 12 inches wide by 24 inches deep, and the slab is 6 inches deep. use a roof live load of 20 psf, and a concrete density of 150 pdf. the beams are spaced 15 feet apart.
A simply supported beam, 2 inches wide by 4 inches high and 12 feetlong is subjected to a concentrated load of 2000 lb at a point 3 ftfrom one of the supports. Determine the maximum fiber stress and the stress in a fiber located 0.5 inches from the t..
A coal-burning steam power plant produces a net power of 300 MW with an overall thermal efficiency of 32 percent. The actual gravimetric air-fuel ratio in the furnace is calculated to be 12 kg air/kg fuel.
The length of a reading room in a library is 10 m and its breadth is 8 m. Compute the distributed live load, assuming the basic value of the load to be 2873 N/m2.
A 45 W electric mixer is operated for 5 minutes while mixing a 2 kg shake. Assume Csubv=4200 J/kg-K for the liquid. Determine the temperature rise (in degrees C) of the milk shake.
The truck is driving onto the stationary barge at the speed of v1. The masses of the truck and the barge are m and M, respectively. The barge is free to move on the water and the water resistance is to be ignored.
The transportation agency would like to determine the maximum spacing of stations to allow trains to arrive no more than 5 minutes apart. 1. Draw a time-space diagram depicting the above scenario
A civil engineering student contends that 60 mph is safe in a van because of the higher drivers line of site. If all other design inputs are standard, what must the drivers eye height be in the van for the students claim to be valid
Theis Method plot drawdown vs. time for 4 observation wells, 5, 50, 100, 500 meters from well pumping at constant rate of 300 m^3/day in sandy confined aquifer. b=12 m, K=25 m/day, and S=10^-4.
A 40 kg sheave a OF RADIUS R=350 mm. and cenral radiusof gyration k=250 mm carries a 160 kg load b and is suspended by a cable and a spring of modulus k=1.2 kN/m.
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