Water Supply

Front 1

What is the term for locations from which an engine can draft out of a static water supply source?

Back 1

Drafting / Fill Site

Front 2

Almost any static source of water can be used for drafting if it is:

Back 2

Sufficient in quantity and not contaminated

Front 3

Before opening a portable tank, a ___________ should be placed on the ground to help protect the liner once the water is dumped into it.

Back 3

Salvage cover or Heavy tarp

Front 4

Portable water tanks should be positioned in a location that allows easy access from ___________

Back 4

Multiple directions

Front 5

Jet dumps ______ the flow rate of any dump valve

Back 5

Increase

Front 6

The interlocking network of water mains that compose a water distribution system

Back 6

Grid

Front 7

The term for an arrangement of water mains that deliver water to hydrants from more than one direction at the same time

Back 7

Grid

Front 8

Fire Hydrant markings and colors are used to designate ________

Back 8

Flow Capacity

Front 9

The smallest pipes in a water distribution system which deliver the water to the homes and hydrants on individual streets are called _________

Back 9

Distributors

Front 10

The most common water distribution system is a ________ system

Back 10

Combination System (Pumped/Gravity)

Front 11

_______ hydrants receive water from only one direction

Back 11

Dead-End

Front 12

The two major hydrant types are ______ barrel and _______ barrel

Back 12

Wet Barrel and Dry Barrel

Front 13

Fire hydrant that receives water from two or more directions

Back 13

Circulating Feed

Front 14

On a dry barrel hydrant, the valve that controls water flow to all outlets is located at the _______ of the hydrant

Back 14

At the Base or Foot

Front 15

How is the amount of water a community needs for both domestic use and protection calculated?

Back 15

Based on History of Consumption and Estimates of Anticipated Needs

Front 16

What are the 3 methods for moving water through the system?

Back 16

1. Gravity

2. Direct Pumping

3. Combination Systems

Front 17

This system delivers water from the source or the treatment plant to the distribution system without pumping equipment

Back 17

Gravity System

Front 18

The difference if the height of the water source and the point of use creates __________

Back 18

Elevation Pressure

Front 19

Gravity pressure is adequate only when the primary water source if located more than ______ feet higher than the highest point in the water distribution system

Back 19

100 Feet

Front 20

Alpine Lake or Mountain Reservoir are examples of true ________ systems, which supply water to consumers below

Back 20

Gravity Systems

Front 21

Water supply system supplied directly by a system of pumps rather than elevated storage tanks

Back 21

Direct Pumping System

Front 22

Where are most direct pumping systems found?

Back 22

Agricultural or Industrial Settings

Front 23

What is the main disadvantage of Direct Pumping Systems?

Back 23

Total dependence on pumps and electricity

Front 24

Water supply system that uses a combination of both gravity and direct pumping systems

Back 24

Combination System

Front 25

A principal pipe in a system of pipes for conveying water, especially one installed underground

Back 25

Water Main

Front 26

When water flows through any pipe, its movement causes ________ that reduces water pressure

Back 26

Friction

Front 27

What are the 3 types of Water Mains

Back 27

1. Primary feeders

2. Secondary Feeders

3. Distributors

Front 28

These mains convey large quantities of water in the distribution system and supply secondary feeders

Back 28

Primary Feeders

Front 29

Intermediate pipes that connect with the primary feeder lines and create a grid

Back 29

Secondary Feeder

Front 30

_____________ can be used to isolate each secondary feeder

Back 30

Control Valves

Front 31

To ensure a sufficient supply, ____ or more primary feeders should run from the source of supply to the high risk and industrial districts of the community along seperate routes

Back 31

2

Front 32

What is an advantage of the grid system?

Back 32

High demand in one area does not reduce water flow in other areas

Front 33

Today _____ inch pipe is often the minimum size used

Back 33

8 inch

Front 34

Gravity Tank capacities range from _______ gallons to over ___________ gallons

Back 34

5,000 gallons to over a million gallons

Front 35

What are the two types of valves generally used in public water supply systems?

Back 35

Isolation Valves and Control Valves

Front 36

Control valve with a solid plate operated by a handle and screw mechanism; rotating the valve moves the plate into or out of the waterway

Back 36

Gate Valve

Front 37

Control Valve that uses a flat circular plate in a pipe that rotates 90 degrees across the cross section of the pipe to control the flow of water

Back 37

Butterfly Valve

Front 38

The maximum lengths for valve spacing should be ____ feet in high value districts and ____ feet in other areas as recommended by Commercial Risk Services, Inc

Back 38

500 Feet; 800 Feet

Front 39

Isolation valves should be tested at least _________

Back 39

Once a year

Front 40

____________ are generally located on municipal easement and below ground

Back 40

Isolation Valves

Front 41

All valves are hydrants are opened by rotating the stem or operating nut to the __________

Back 41

Left or Counterclockwise

Front 42

Rotating the stem or operating nut to the ___________ closes the valve or hydrant

Back 42

Right or Clockwise

Front 43

Isolation valves for private water supply systems are usually ___________ valves

Back 43

Indicating-Type Valves

Front 44

An indicating valve shows whether the gate seal is ______, ______, or __________

Back 44

Open; Closed; Partially Closed

Front 45

What are 2 common indicating valves?

Back 45

- Post Indicator Valve

- Outside Stem and Yoke Valve

Front 46

The __________ valve is a hollow metal post that houses the valve stem

Back 46

Post indicator Valve

Front 47

The water ___________ determines the quantity of water that the facility is using for billing purposes

Back 47

Flowmeter

Front 48

The ______________ prohibits any water from flowing back into the public water system

Back 48

Backflow preventer

Front 49

Fire Hydrants should not be spaced more than ____ feet apart in high value districts

Back 49

300 Feet

Front 50

Hydrants should be located at ___________ intersections

Back 50

Every Other

Front 51

Every building on a given street should be with ____________ of a hydrant

Back 51

One Block

Front 52

__________ loss reduces the volume and pressure of water available from fire hydrants

Back 52

Friction

Front 53

A distribution system that provides circulating feed from all directions is called a __________

Back 53

Grid System

Front 54

__________ can provide a consistent volume of water under constant pressure

Back 54

Fire Hydrants

Front 55

_________ hydrants receive water from only one direction, whereas ___________ hydrants receive water from two directions

Back 55

Dead-End; Circulating-Feed

Front 56

In general, all fire hydrant bonnets, barrels and foot pieces are made of __________

Back 56

Cast Iron

Front 57

The internal working part of fire hydrants may be made of _________

Back 57

Bronze

Front 58

What are the two main types of fire hydrants?

Back 58

Wet Barrel and Dry Barrel

Front 59

Fire Hydrant outlet that is 4 inches in diameter or larger

Back 59

Pumper Outlet Nozzle

Front 60

Large-diameter outlet, usually 4 1/2 inches, at a hydrant or at the base of an elevated water storage container

Back 60

Steamer Connection

Front 61

What are the 2 components for a standard hydrant discharge outlet?

Back 61

1 large (4 or 4 1/2 inches) outlet

and

2 hose outlet nozzles for 2 1/2 inch couplings