Water Distribution BUNDLED Test exams 2023 with 100% correct answers

If you come upon a co-worker who is not breathing you should immediately Start artificial respiration What is the pressure at the bottom of a standpipe filled to a height of 47 ft 20 psi A connection from the Municipal Water Supply directly to the packing gland of a centrifugal waste...

The pH of 4 is An acid The preserve & maintain a groundwater supply source, the operator must Be careful not to overtax aquifers capability to supply water What chemical is contained in the Bac T bottles? Sodium Thiosulfate A standpipe Height is greater than its' diameter ...

What do water distribution system operators have the responsibility for? The health and well-being of the community they serve Frequently the water supplier tries to maintain specific minimum target __________________ throughput the distribution system. Water pressure (20 PSI minimum) ...

Water is most dense at A. 212 DegF B. Boiling C. Freezing D. 4 DegC D The three types of main valves on dry-barrel hydrants are A. Standard compression, non-standard, and toggle B. Standard compression, Corey, and wave action C. Standard compression, Corey, and Toggle D. Standard...

How are valves checked to determine that they are holding properly? by a pressure test Who is ultimately responsible for being sure that your agency has a good record keeping system? Supervisor Which type of pipe is most likely to be damaged by corrosion? Steel What is the mo...

A factor or value used to indicate the smoothness of the interior of a pipe Cfactor Major parts of water distribution Pipes, storage facilities, pumping stations, valves ,fire hydrants, meters, and other appurtenances Main purpose of water storage facilities To provide sufficient am...

Plastic Most resistant to corrosion Chlorine gas heavier than air, extremely toxic, very corrosive to damp atmospheres Centrifugal pump Most common pump, used for high flow, and low pressure applications booster pumps Positive displacement pump For low flow, high pressure ap...

What does a C value of 140 means for a pipe? The pipe interior is very smooth. Which primary contaminant causes Blue Baby Syndrome? Nitrate. What is a nutating disc? Type of a water meter for a small-diameter domestic service. What causes hardness in water? Magnesium and cal...

Which is not a type of water ? Apparent Which layer of a lake is considered nutrient poor? Hypolimnion (Bottom Layer) Copper Sulfate (Blue Stone) is used in lake management to ? Control Algae Bloom The Surface Water Treatment Rule requires that 3-log removal 99.9% for virus,...

A continuously flowing watercourse Perennial Stream Algae causes PH to ....... at night Decrease What contributes to creation of algae blooms Increased nutrients Iron is found mostly in what sources of water Groundwater Also called the rule of reasonable sharing Ripa...

Importance of providing secondary disinfection To maintain a persistant disinfectant residual throughout the distribution system to protect water from microbiologicak recontaimination Which regulation specifies operator training and certification requirements O.Reg. 128/04 - Certification o...

After a new water mains is installed and pressure tested it should be Filled with a solution of 25ppm to 50ppm free chlorine for at least 24 hours prior to flushing as the temperature of water increases the disinfection process more effective water with a ph of 8.0 is considered bas...

What is static head? The vertical distance between a reference point to the water surface, when the water is not moving. How long must water remain stagnant and undisturbed in the pipe before a first-draw sample is collected for lead and copper analysis? at least 6 hours If at least ...

What federal agency is responsible for the rule making and enforcement of the safe water drinking act? Enviromental protection agency In detecting chlorine gas leaks from the disinfection assembly, an ammonia soaked rag will produce what? A dense white vapor The chlorine concentratio...