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3. A tank contain water at 60oF (kinematic viscosity 1.22 * 10-5 ft2/s). A nominal 6 schedule 40 horizontal steel pipe exits the tank through a square edged entrance. 150 ft from the tank there is a valve, k = 2.5, 200 ft further down the pipe there is a sudden contraction, K = 0.25 (use downstream velocity) to a nominal 4 schedule 40 steel pipe. 50 ft later the pipe exits to the atmosphere through a 3 in diameter nozzle, k = 0.2 (use exit velocity). If the water level in the tank is 40 ft above the outlet nozzle, determine the flow rate. 4. Determine the values for the Energy Grade Line and the Hydraulic Grade Line for the tank and pipe system of problem 3. Plot the EGL and HGL. 6. Nominal 8, schedule 40 steel pipe carries 2.0 cfs. Verify that the Hazen Williams equation V = 1.32 Ch R0.63 S0.54 gives the equation hL = (4.73 L Q1.852 )/ (Ch1.852 D4.87) Determine the energy loss per 100 ft. The Hazen Williams coefficient is 110. 7. Determine the size of cast iron pipe needed to carry 2.5 cfs between two tanks 240 ft apart if the water surface elevation difference is 15 ft. New cast iron pipe has a Hazen Williams coefficient of 130, 10 year old cast iron pipe the coefficient is 110, 20 years old it is 95, 30 years old it is 83, 40 years old it is 75. Plot the actual flowrate versus time for 40 years.
A contractor has both a 3-cy and a 5-cy shovel in the equipment fleet. Select the minimum-size shovel that will excavate 400,000 bcy of common earth in a minimum of 130 working days of 8 hr each.
Determine the dimensions of the best hydraulic trapezoidal concrete channel section to convey water at a rate of 2200 gal per min on a channel slope of 0.015 m/m.
fator dumps 5m^3/s of nonconservative waste with concentration 100mg/l into the lake. the pollutant has a reation rate coefficient K of 0,23/day assuming the pollutant is well mixed in the lake, find steady state concentration of pollatant in the ..
A concrete mix with a 3-inch slump, w/c ratio of 0.50, and sand with a fine- ness modulus of 2.4 contains 1700 lb/yd3 of coarse aggregate. Compute the required weight of coarse aggregate per cubic yard.
Describe the use of productivity models for estimating land productivity. Provide details about various attributes that can be used and how the model is developed . Examples can be used to demonstrate model workability.
The temperature of the gas remains constant during the process. determine A.) the amount of heat transfer, B.) the final pressure in the cylinder, and C.) the distance that the piston is displayed.
List the series of steps involved in converting rural land into development. You may refer to an example of local conditions in your reference jurisdiction or you may use a description of such steps that you find from other sources
A soil specimen is 38 mm in diameter and 76 mm long and in its natural condition weighs 168.0 g. When dried completely in an oven the specimen weighs 130.5 g. The value of Gs is 2.73.
Wastewater flow is 80 gpcd with 170 mg/l BOD and 190 mg/l suspended solids. Size the extended aeration basin and clarifier using the minimum detention time and overflow rates. Calculate the average F/M using an MLSS of 1000 mg/l.
question 1as an estimator in a construction firm you have been instructed to include only the costs relating to labour
A sample of mortar fills a900 ml beaker. The mortar and beaker combined weighs 3 lb and theempty beaker weighs 2 oz. What is the weight density of this mortar sample
The house has a 1 m high dirt-floored crawl space. The emission rate of radon into the crawl space is reported to be 0.6 pCi/m2s. An exhaust system was added to provide 1 air exchange per hour (ACH) in the crawl space. The outdoor concentration of..
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