Water Distribution Test Questions and Answers (Graded A+)

Distribution systems are usually laid out in which of the following patterns besides Tree shaped and Grid designs? a. Loops and/or circular designs b. Vertical designs without backflow prevention devices c. Horizontal lines that flow into open ponds then back into a closed pipe d. Horizontal lines that flow into underground sumps then back into a closed pipe - ANSWER-a. Loops and/or circular designs Dead ends in a system are usually located on a. Loops and/or circular designs b. Tree shaped and Grid designs c. Oval designs d. transmission mains e. Cul de Sac's with return lines - ANSWER-b. Tree shaped and Grid designs An operator may refer to Piezometric elevation, static head, or pressure head as a. horizontal water elevation b. water pressure from a pump c. maximum pressure from a fire hydrant d. vertical water column height - ANSWER-d. vertical water column height A downstream closed sectionalizing valve without pressure reducing valves in the system will have which of the following pressures placed upon it? a. the water surface elevation from the last point where the water is open to the atmosphere b. the back pressures from a downstream point c. the downstream booster pump operation d. the operation of a fire hydrant located immediately downstream of the hydrant - ANSWER-a. the water surface elevation from the last point where the water is open to the atmosphere What is the main purpose of a water storage facility? a. to allow storage reserve during wet periods b. to help maintain adequate pressures throughout the entire system c. to meet needs for fire protection d. to provide sufficient amount of water to average or equalize the daily demands plus provide minimum pressures to fight fires - ANSWER-d. to provide sufficient amount of water to average or equalize the daily demands plus provide minimum pressures to fight fires Electrical demand in a wiring system is determined by the amount of a. Oh