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1.An open traverse that runs from A through H has the following deflection angles: B = 6o25' R; C = 3o54' R; D = 11o47' R; E = 20o02' L; F = 7o18' L; G = 1o56' R. If the bearing of AB = N 20o40' E, compute the bearings of the remaining sides.
2.A 150-mL sample from a lake was used to determine TSS. A rinsed and dried filter weighed 0.3588 grams before the sample was filtered and then weighed 0.3630 grams after the sample was filtered and being at dried at 103C. What is the TSS for this sample?
3.A BOD5 test sample of river water has the following test data. DO on day 0 = 7.9 mg/L. DO on day 5 = 2.3 mg/L. What is the BOD5 of the river water?
4.A 250 cubic meter reaction tank contains a waste water having an ultimate BOD concentration of 755 mg/L. If the BOD reaction rate constant is -0.352/day, how much BOD is remaining after 12.0 days?
Using the aluminum alloy 2014-T6, determine the largest allowable length of the aluminum bar AB for a centric load P of magnitude (A) 150 kN b=50 mm h=20 mm
water at 20 c is proposed to be is siphoned from a reservoir as shown. assume no losses. for d 10 cm and d 16 cm
QZY, Inc. is evaluating new widget machinesoffered by three companies. The machines have the following characteristics:
It is required to dewater a construction site 80 m by 80 m. The bottom of the construction will be 1.5 m below the initial water surface elevation of 90 m. Four pumps are to be used in 0.5-m diameter wells at the four corners of the site.
A circular hatch, 2-m in diameter has its top 10-feet under water ( fresh water s.g. = 1.0), and is hinged on the bottom, and held closed on the top with a single bolt. Perform a moment balance about the hinge
consider a cantilever mass-less beam subjected to a concentrated mass at the tip of the beam.nbspassume length l
Would a 30 slot stainless steel screen (2.0 m long; located at the bottom of the well) have sufficient collapse strength for this application?
Three loads are applied to a beam. the beam is supported by a roller at A and by a pin at B. neglecting the weight of the beam, determine the reaction at A and B when P=15kips.
Determine the force members BC, FC, and FE, and state if the members are in tension or compression.
a 1kg ball is dropped from the top of a cliff and falls with a constant acceleration due to gravity. assume that
An ocean outfall diffuser that discharges treated wastewater into the Pacific Ocean is 500m from a public beach. The wastewater contains 105 coliform bacteria per milliliter. The wastewater discharge flow rate is 0.3 m3/s.
If the pressure in pipe B is decreased 10 kPa and the pressure in pipe A remains unchanged, determine the new reading along the inclined leg of the mercury manometer.
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