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A soil deposit has a void ratio of 0.89, is the void ratio is reduced to 0.59 by compaction; find the percentage volume less due to compaction.
Determine the effective size as well as the uniformity coefficient and coefficient of curvature for each soil. Determine also the percentages of gravel, sand, silt, and clay according to (a) ASTM, (b) AASHTO, (c)USCS, and (d) the British Standard.
Also calculate the deflection of the beam to check that it complies with the design limit of L/200. Only variable actions are required for deflection check.
The pollutant has a reaction rate coeeficient k of 0.25/day. Assuming is pollutant is well mixed in the lake, find the steady-state concentration of pollutant in the lake.
The meter inlet and throat are connected by the two legs of a mercury manometer. Use the Bernoulli equation to describe how this manometer can be used to measure the flow rate through the meter.
A hydroelectric facility operates with an elevation difference of 50.0 m with a flow rate of 500 m3/sec. If the rotational speed is 90 rpm, determine the most suitable type of turbine and estimate the power output of the arrangement.
Hardness is sum of all divalent cations (meaning all species with a positive charge of 2) in a water sample. Magnesium (Mg2+) and calcium (Ca2+) are the most common divalent cations that contribute to hardness.
Discuss about damp-proofing trenches
A college student borrows $1500 during his senior year. The loan is to be repaid in 20 equal quarterly installments. The interest rate is 5% per year with the first payment to be made 3 years after the date of the loan. What will be the approximat..
Methane is compressed in a piston-cylinder device from initial pressure of 110 kPa and an initial temperature of 25 oC to a final pressure of 1,00 MPa. The compression process is polytropic with n = 1 .10.
If the 50 kg crate starts from rest and travels a distance of 6m up the plane in 4s, determine the magnitude of force P acting on the crate. The coefficient of Kinetic friction between the crate and the ground is 0.25
Consider tetrachloroethene (PCE) in water. The vapor pressure of PCE is 0.0251atm. Henry's constant for PCE at 25°C is 26.9 atm-L/mol. Estimate the aqueous concentration of PCE in water at equilibrium
An industrial plant presently discharges a chemical (W=2000 * 106 gr/yr) to the lake. In addition, the inflow stream also contains the same chemical at a concentration of 15 mg/L. Note that the volumetric inflow and outflow are equal.
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