Start Discovering Solved Questions and Your Course Assignments
TextBooks Included
Solved Assignments
Asked Questions
Answered Questions
sieve analysis - soil mechanics and foundationsa sieve analysis used to obtain the grain size distribution of coarse-grained soils sands and gravels
define the transmissivity and reynold numbertransmissivity t a measurement of the rate of groundwater movement through different soil and rock
explain the hydraulic gradienta measurement of the movement of water over distances change in hydraulic head from one monitoring point to
define the thiem equations for confined aquifers using natural log q 2pkmh2 - h1lnr2r1 using log10 q 2kmh2 -
explain the confined aquifer and piezometric surfaceconfined aquifergroundwater is confined by impervious geologic stratums on all sides the water
explain the dupuit equations for unconfined aquifers using natural log q pikh22 - h12lnr2r1 using log10 q kh22 -
explain is vadose zone - ground waterin an unconfined aquifer it is the area located above the water table and aquifer where the soil and rock are
define the phreatic line and phreatic zonephreatic line in an unconfined aquifer it represents the water table phreatic zone in an unconfined
explain the unconfined aquiferalso termed free aquifer groundwater flows by gravity from high head to low head the upper water surface is termed
what are aquiferswater bearing underground geologic formations the subsurface formations are composed of soils and rocks with voids saturated with
explain the rippl diagram or mass diagramfor a potable water reservoir it is the simultaneous plots of the cumulative inflow and cumulative water
equalization basins - hydraulic systemfor influent flow to publicly owned treatment works potws flow rates may be excessive for short or long
define the reservoirs - hydraulic systemtypically designed for multiple functions - clean water supply creating recreational opportunities and flood
parallel pipe systems or multipath pipeline problemstwo or more sections of piping branches of different diameters lengths andor pipe materials
total dynamic head tdh y-axis plot point related to each x-axis flow rate along the system curve plottdh ha tsh hf v22g v2
explain the system curves - pumping systemnon-linear plot beginning on the y-axis at the total static head tsh and plotted primarily based on the
define the types of pump performance curvestwo types of pump performance curves x-axis flow rate y-axis head tdhcharacteristic curvesprovided by
define the net positive suction head all values in the equations are in units of feet note only use values related to the suction side of the
primary effluent wastewater at 60of v 1217 x 10-5 is pumped to the top of a trickling filter tf a total of 75 vertical feet through schedule-40
steps to determine the brake bhp and motor horsepower mhp 1 determine water horsepower whpha qgpm sg 3956 or ha qcfs sg 88142 apply the pump
explain brake and electrical horsepowerbrake horsepower bhp whppump efficiencyelectrical or motor horsepower ehp or mhp bhpmotor efficiencyfriction
define the pump and motor efficienciesequations account for the loss of power primarily due to mechanical friction as a result of rotating components
steps to determine the hydraulic horsepower whp for pump problems 1 determine ha by rearranging the bernoulli equation 2 apply ha into the
explain the critical depthdc is the depth of flow in an open channel that has the lowest energy in rectangular open channels dc3 q2gw2in
explain subcritical flow and supercritical flowsubcritical flow the depth of flow is greater than critical depth and the velocity of the fluid is