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1.Under what situation shall engineers use jacking at one end only and from both ends in prestressing work.
2.Determine the magnitude Fs of the tensile spring force in order that the resultant of Fs and F is a vertical force . Determine the magnitude R of this vertical resultant force.
3.Water is transferred at a rate of 2.1cfs from an upper reservoir to a lower reservoir by a concrete pipe 3000ft long. The difference in water level is 60ft. Determine the size of pipe for a water temperature of 60 degrees Fahrenheit. Apply The Darcy-Weisbach equation.
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.
A body slides down a frictionless plane and during the third second after starting from rest if it travels 20.4m. What is the angle of inclination of the plane?
A 1 meter diameter cylindrical mass, M, is connected to a 2 meter wide rectangular gate. The gate is to open when the water level, h, drops below 2.5 meters. Determine the required value for M. Neglect friction at the gate hinge and pulley.
The torque output from an automobile engine shaft is 100 ft*lbf at 3600 rpm. What is the horsepower delivered
A cattle watering has a free surface with a size equal to 0.6 m x 0.3m, with the longer side being parallel to the prevailing wind. Wind at -23 C is blowing over the surface at 1 m/s.
An intelligence data bank center requires power 24 hours a day, 7days a week. If the main power grid fails, a backup power supply isinitiated.
Crude oil, with specific gravity SG=0.85 and viscosityμ = 2.15×10−3 lbf sec/ft2, flows steadily down a surfaceinclined θ = 30 degrees below the horizontal in a film ofthickness h=0.125 in. The velocity profile is given by u =ρg/μ(hy − y2/2)sinθ
Molybdenum has a BCC crystal structure, an atomic radius of0.1363 nm, and an atomic weight of 95.94 g/mol. Compute andcompare its theoretical density with the experimental valuefound inside the cover.( experimental density is 10.22g/cm^3)
A pickle producing plant produces and discharges a waste brine solution with a salinity of 13,000 mg/L NaCl at a rate of 0.14 MGD into a stream. Before the discharge enters the stream, the flow rate of the stream is 1.2 MGD and the salinity is 20 ..
The maximum flow rate of a standard shower head is about 3.5 gpm and can be reduced to 2.75 gpm by switching to a low-flow shower head that is equipped with flow controllers. Consider a fam- ily of four, with each person taking a 6-minute shower e..
The receiver's velocity is constant at 10 yd/sec, and he catches passes when the ball is 6 ft. above the ground. If the quarterback desires the receiver to catch the ball 2.5 sec. after the launch instant, determine the initial speed v0 and angle,..
a venturi meter is placed in a pipeline to measure the flow rate of the liquid flowing through that pipe.the meter
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