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Determine a set of rectangular beam design values (b),( d) and (As) area of steel, that will be needed to support a factored bending moment (Mu=450 Kip-ft). Use (f'c=4,500 psi) and (fy=40,000 psi). Use beam width of approximately 0.6 times effective depth. (b= 0.6 d).
Measure the distance PA, PB, PC etc. from p to various point with chain or tape and plot them to scale along the co responding rays. Join the points a, b, c, etc. to give outline of survey.
Find an equation of a plane containing the three points (-2, 5, -3), (-7, 3, 1), (-7, 4, 3) in which the coefficient of x is -8.
Refrigerant R134a enters the compressor of a refrigerator at 0.14 MPa and -10°C at a rate of 0.12 kg/s and leaves it at 0.7 MPa and 50°C. The refrigerant is cooled in the condenser to 24°C and .065 MPa and it is throttled to 0.15 MPa.
Why is the ‘time value of money' important for the evaluation of engineering projects? Provide at least one practical example to support your view (max 2 pages).
A 12-in. square concrete pile is driven into loose sand to a depth of 30 feet. Unit weight is 118 pcf, internal friction is 30 degrees. Find the pile's axial capacity if K is assumed to be 0.7 and the factor of safety is 2.
The entrance to Mt. Hood Meadows (elevation 3,075 ft at the point of crossing) is grade separated from Viking highway (elevation 3,050 ft at the point of crossing) and will have to be connected. The two roadways intersect at a right angle.
a wind tunnel is used to experimentally determine the lift force L and drag force D on a scale model of an aircraft. the bracket supporting the aircraft is fitted with an axial spring with stiffness k= 0.125 N/mm and a torsional spring with stiffn..
The motor in the unit runs at 300 rpm and produces an unbalanced force of 60 lb at this speed. Neglect weight of the beams and assume 1% viscous deflection in the system; for steel E=30,000 ksi.
a simple random sample of 20 items from a normal population resulted in a sample mean of 17.25 and a sample standard devation of 3.3 a. develop a 90% confidence interval for the population mean. b. develop a 95% confidence interval for the populatio..
For the same loan described under Q3, the individual decides that instead of selling the house after the 71stpayment, to keep it and shorten the pay off period by increasing the montly payment by $150 each month.
the water tempearture is 10 degree celusis. how fast must the paddle wheel rotate in that compartment to generate a G(velocity gradient) value 30 s-1
The incremental cash flow between alternatives Z1 and Z2 (Z2 has the higher initial cost). Use an AW-based rate of return equation to determine the incremental rate of return and which alternative should be selected
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