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What is a water bearing formation Aquifer volume of a cylinder formula 3.14R(squared)H study of liquid in motion Hydraulics speed that water moves and units velocity feet/second source of water is below the pipe suction life friction loss determined by 5 things velocity pipe size
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What is a water bearing formation Aquifer volume of a cylinder formula 3.14R(squared)H study of liquid in motion Hydraulics speed that water moves and units velocity feet/second source of water is below the pipe suction life friction loss determined by 5 things velocity pipe size
pipe length c factor fittings 1 feet cubed = gal 7.48 gal 1 gal = lbs 8.34 lbs 4 water quality characteristics physical chemical biological radiological formula for velocity V = Q/A
roughness of pipe interior is called what does a higher number mean C–factor higher the number means its more smooth source of water is above pump suction head area of rectangle formula LWH volume of a cube (basin) formula LWH 1 foot = PSI1 foot = .433 psi 1 inch of hg = ft 1 inch of hg = 1.13 feet 1 foot cubed = lbs 1 foot cubed = 62.4 lbs
1 psi = feet 1 psi = 2.31 feet what is the measurement of hydraulics and units pressure, psi units = head feet what contains packing, packing gland, and lantern ring in a pump? stuffing box study of liquid in motion hydraulics what is a water bearing formation aquifer volume of cylinder 3.14RsquaredH speed that water moves and units velocity
what does VOC stand forvolatile organic compounds what is high turbidity badreduces cl2 effectiveness desirable pH of water 6.5–8. disease causing bacteria and virus pathogen whats used to raise pH caustic soda and sodium hydroxide (NAOH) high iron causes what problems bad taste odor red staining high manganese causes what problems brown/black staining
taste/odor problems high nitrate levels causes infant suffocation blue babies what problems can lead have in water brain damage to children hypertension purpose of low service pumping surface treatment source to treatment plant low pressure purpose of high service pumping moving treated water under pressure purpose of booster service pumping increase pressure in distribution
casing (volute) full of water foot valve must be primed start against a closed discharge valve what needs to be done to stop a centrifugal pump stop against a closed discharge valve pump control valve what part of a pump contains the impeller casing or volute purpose of packing in a pump seals space between shaft and case keeps air out of casing
purpose of packing gland used to tighten down packing purpose of lantern ring distributes lubricating water to packing to maintain seal measure of current amps used to measure the condition of motor insulation megger protection from current overload fuse starts pump motor magnetic contactor energizes coil in magnetic contactor relay
top of the ground water is called water table gravel packing is used in what kind of aquifer sand and gravel not enough net positive suction head could result in cavitation an increase in total dynamic head will decrease capacity a fuse will protect a circuit from a current overload measured in amps over a months time, the shutoff head and pumping capacity both decreased. this is an indication of impeller or wear ring wearing water is steadily dripping from the stuffing box that contains packing and lantern ring. you should do nothing it's ok
high sulfate levels might cause diarrhea high trihalomthane levels might cause cancer what is the maximum allowed limit for turbidity 1 ntu a positive langlier index is most likely to cause scale deposits trihalomethanes are produced when chlorine reacts with organics what does the langlier index measure corrosion of water coliforms are indicator bacteria Storage tank that diameter is greater that height Ground storage tank
Tightening or loosening the packing gland will control water flow from the stuffing box What may need to be replaced if pump capacity decreases wear rings before starting a centrifugal pump, the volute should be full of water most centrifugal pumps should be be started against a closed discharge valve what valve keeps the pump primed Foot pump cavitation is most likely to occur in which situation suction lift the purpose of an altitude valve is to prevent overflows
If the air vent plugs, a water storage tank could Collapse Iron begins to cause water quality programs at any level above .3 mg/l manganese begins to cause water quality programs at any level above .05 mg/l high nitrate levels may cause infant suffocation high sulfate levels may cause diarrhea high trihalomethane levels may cause cancer high turbidity can hide or shieldpathogens a finished water with a negative langlier index may be corrosive
a bacteria sample must be mailed so that the lab analysis can begin no later than 30 hours after the sample was collected the lab results fro a bacteria sample is G+ and U this means excessive bacteria growth with coliforms before taking a bacteria sample, the sample should be taken find a sampling tap with no threads or aerator check samples for bact t's should be taken from the same location as the contamination and both sides of the location indicating the contamination a corporation stop begins a service line at the water main
which backflow preventer should be installed as part of the water service line to an industry using toxics reduced pressure principle sewer lines and potable water lines should be separated horozontally by how many feet 10 feet water service lines should be located at least inches above sewer lines 18 inches it is possible for the following substance to diffuse or permeate through plastic service lines gasoline which of the following substances should not be used to disinfect water main chlorine dioxide
