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1.Oil (SAE 30) flows between parallel plates spaced 5mm apart. The bottom plate is fixed, but the upper plate moves with avelocity of .2 m/s in the positive x direction. The pressuregradient is 60 kPa/m, and is negative. Compute the velocityat various points across the channel and show the results on aplot. Assume laminar flow.
Determine the required size of new Schedule 40 steel pipe to carry 0.5 cfs (Q = 0.5 cfs) of water at 160o F with a maximum pressure drop of 10 psi per 1,000 ft.
Water flows through 800 feet of 12-inch diameter iron pipe (? = 0.0018 inches) between 2 open storage tanks, whose water surface elevation difference is 16 feet. The pipe entrance is flush and square edged
A rectangular open channel with a width of 10 ft and n = 0.013 conveys a discharge of 300 cfs. The upstream portion of the channel has a slope of 10%, which then abruptly changes to a slope of zero downstream.
A falling-head permeability test was carried out on a clay soil of diameter 100 mm and length 150 mm. In 4 minutes the head in the standpipe of diameter 5mm dropped from 680 to 350 mm.
If a certain EDM has a centering error of 3mm and a scalar error of 3ppm, what is the uncertainty in a observed distance of 1380.25 ft
Conduct either a qualitative or quantitative risk assessment on this project. Identify the risk factors that you consider most important for the suspension bridge construction. How would you assess the riskiness of the project? Why?
A brass alloy has a yield strength of 280 MPa, a tensile strength of 390 MPa, and an elastic modulus of 105 GPa. A cylindrical specimen of this alloy 12.7 mm in diameter and 250 mm long is stressed in tension and found to elongate 7.6 mm.
If the peak-hour factor is .90 and all of the drivers are regular users, what is the level of the service of this compound-grade freeway segment?
IT IS DESIRED TO RETRACE THE LINE WITH A COMPASS TODAY, WHEN THE DECLINATION IS 5 35'E. WHAT READING OF THE COMPASS SHOULD BE USED TO RETRACE THE LINE
Estimate teh excess solids production of an extended aeration process treating unsettled wastewater with a BOD of 200 mg/l and suspended solids concentration of 240 mg/l, assuming k=0.35.
A motorcycle starts from rest at time t=0. The force on it from t=0to 30 seconds is F=300-9t. The combined mass of the motorcycle andthe rider is 225 kg. Use the Impulse and Momentum method to find the magnitude of the velocity at t=30 seconds.
Ignore emissions from manufacturing the packaging material
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