Water Supply Midterms: Module 6

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Main supply lines run through the center of the building and sub mains branch off in perpendicular directions.

grid-iron system

Elevated reservoir is centrally located and divided into several distribution area

radial system

are large pipes that carry large quantities of water from the treatment plant and storage tanks into the distribution system.

transmission lines

generally run in straight lines, have few side connections, and aren’t tapped for customer services.

transmission pipes Signup and view all the answers

Connected to transmission mains. transmit flow to distribution mains.

arterial mains Signup and view all the answers

carry water from transmission lines and distribute it throughout a community.

distribution mains Signup and view all the answers

Machine used to convert mechanical energy to fluid energy.

pumps Signup and view all the answers

moves a fluid by repeatedly enclosing a fixed volume and moving it mechanically through the system. Choices

positive displacement pump Signup and view all the answers

add energy to the fluid by accelerating it through the action of a rotating impeller. Choices

rotodynamic and kinetic pump Signup and view all the answers

discharges radially

centrifugal pump Signup and view all the answers

discharges axially

axial-flow pump Signup and view all the answers

radial and axial

mixed-flow pump Signup and view all the answers

type of fitting that allows for regulation, control, and direction of fluids passing through a pipe.

valve Signup and view all the answers

Prevent Backflow

check valve Signup and view all the answers

Prevent water from leaving the pump

foot valve Signup and view all the answers

To stop or start a flow

gate valve Signup and view all the answers

Required at high points to release trap air. Choices

air-relief valve Signup and view all the answers

To keep the dirt from entering the pump

strainer Signup and view all the answers

The total demand for water, which encompasses the amount of water required by the community for various purposes, such as meeting consumer needs, supplying water for fire-fighting, system flushing, and accounting for potential leaks.

water demand Signup and view all the answers

ADD

Average Daily Demand Signup and view all the answers

AAD

Average Annual Demand Signup and view all the answers

MDD

Maximum Day Demand Signup and view all the answers

MMD

Maximum Month Demand Signup and view all the answers

PHD

Peak Hourly Demand Signup and view all the answers

PWD

Peak Weekly Demand Signup and view all the answers

demand per person

per capita Signup and view all the answers

Ratio of the demand to the average day demand Choices

peaking factor Signup and view all the answers

This involves gathering water from multiple sources and allowing sediments found in river or spring water to settle out.

collection chamber Signup and view all the answers

The transportation of water from its source to the treatment facility utilizes various conduits, such as open channels, aqueducts, pipelines, and so on, which are collectively referred to as

transmission mains Signup and view all the answers

are constructed at or below ground level and usually discharge water to the distribution system through pumps.

ground storage tanks Signup and view all the answers

is useful in the case of fires and emergency conditions. allow the natural force of gravity to produce consistent water pressure throughout the system.

elevated storage tanks Signup and view all the answers

Large column (shaped like a vertical pipe) that can store water. The extra height of it allows it to use gravity in order to maintain proper water pressure.

standpipes Signup and view all the answers

One main pipelines runs through the center of the area. Sub Main lines are divided into several branch. Choices

Dead-End System Signup and view all the answers