Chapter 12 (Water Source)

Front 1

What are the four primary reasons we use water as an extinguishing agent.

Back 1

Easilly Stored, Cheap, Easy to convey long distances, Effectiveness

Front 2

The two types or primary water supply are?

Back 2

Ground and surface

Front 3

Examples of Ground water are

Back 3

Wells, and Springs

Front 4

Examples of surface water are

Back 4

Rivers and lakes

Front 5

To be deemed adequate a water supply must be able

Back 5

Supply enough water for fire protection while providing regular domestic expectations

Front 6

(T or F) Most water systems are fueled by one source

Back 6

True

Front 7

In this system one or more pumps draw water from the primary source and transports it for use.

Back 7

Direct Pumping

Front 8

Most direct pumping systems are found in?

Back 8

Agricultural and Industrial Areas

Front 9

What is the main disadvantage to a direct pumping system

Back 9

Mechanical failure and electrical outages.

Front 10

What is a gravity pump system

Back 10

A system relying on the source being elevated above the distribuition location

Front 11

What height requirement is needed to make a gravity pumping possible.

Back 11

100 feet

Front 12

What system is used by a majority of North american communities?

Back 12

Combination

Front 13

In most situations with combination systems, water is pumped from the treatment center to.

Back 13

Elevated storage tanks.

Front 14

What is the most common way of treating water?

Back 14

Filtering and the addition of chlorine

Front 15

What is the primary concern a fire dept. has with a water treatment facility?

Back 15

The possibility of mechanical break down in event of terrorist attack or natural disaster.

Front 16

What are the 4 ways that water is treated?

Back 16

Chemicals, Filtering, Coagulation and sedimentation

Front 17

What chemical is stored in large quantities at water treatment centers and has the potential for a serious hazard?

Back 17

Chlorine

Front 18

The ability for a water system to distribute a sufficent amount of water to a community is based on?

Back 18

The elevation, capacity of the storage tanks and water mains

Front 19

When water travels through a pipe it causes ___________ which reduces the pressure flow through a pipe?

Back 19

Friction loss

Front 20

A fire hydrant the recieves water from 1 source is called a ?

Back 20

Dead end hydrant

Front 21

2 factors that cause friiction loss in piping are

Back 21

Encrustation and sedimentation

Front 22

A system that feeds a hydrant from two directions is called a

Back 22

Looped system

Front 23

A system that feeds hydrants from all directions is called a

Back 23

Grid system

Front 24

There are three classifications of pipes in water distribution systems, they are

Back 24

Primary and secondary feeders and distributors

Front 25

Fire hydrant supply mains are recommended to be at least _____ in residential and ____ in industrial.

Back 25

6 inches and 8 inches

Front 26

Cross connecting mains should be located every _______ feet.

Back 26

600

Front 27

_______ mains can be found on main streets and are not cross connected frequently.

Back 27

12 inch

Front 28

Valves should be operated at least ______.

Back 28

Once a year

Front 29

Water supply calces are broadly devided into two types.

Back 29

Indicating and non-indicating

Front 30

Vavles in private systems are usually?

Back 30

Indicating

Front 31

On an open stem and yoke valve, when the stem is exposed it is

Back 31

the valve is open

Front 32

The _______ valve is a hollow post that has a stem located in it.

Back 32

PIV (Post idicator valve)

Front 33

On a PIV there are two settings they are Open and ______

Back 33

Shut

Front 34

Non indicating valves are barried and can be found in.

Back 34

Utility manholes

Front 35

Valves should be indicated with a number that indicates?

Back 35

The number of turns it takes to open the valve

Front 36

The primary valves seen in water distribution are?

Back 36

Gate and butterfly

Front 37

A butterfly valve requires how many turns?

Back 37

a single 90 degree turn

Front 38

If valves are installed correctly you might have to shutdown _____ hydrants for a single main break

Back 38

2

Front 39

What are water main pipes generally made of?

Back 39

PVC, Concrete, Asbestos cement, and iron

Front 40

Unstable or corrosive soil require what kind of piping?

Back 40

Steel or concrete

Front 41

Pressure at a a given time while water is not flowing is known as?

Back 41

Static pressure

Front 42

Flow pressure is

Back 42

The forward velocity of water leaving a discharge opening.

Front 43

Residual pressure is

Back 43

The pressure remaining in the piping at the time in which water is flowing

Front 44

In general all fire hydrants are made of

Back 44

Cast iron

Front 45

The two primary types of hydrant are

Back 45

Dry Barrel and wet barrel

Front 46

On a dry hydrant the valve is located?

Back 46

Below the frostline

Front 47

A partially closed dry hydrant can cause the water to flow into the hydrant and out the drain hole, this is called

Back 47

Undermining

Front 48

In order to check a hydrant for draining you can.

Back 48

Close all the discharges but one and place your hand flat against it checking for suctioning.

Front 49

What is a tall tell sign of a broken component in a fire hydrant?

Back 49

Bubble water coming from the base of the hydrant

Front 50

In general fire hydrants in high value areas should be located no more than _____ feet from eachother

Back 50

300

Front 51

A class C hydrant should be ______ color and offers __ GPM

Back 51

red 500 or less

Front 52

A class B hydrant should be ______ color and offers __ GPM

Back 52

Orange 500-1000

Front 53

A class A hydrant should be ______ color and offers __ GPM

Back 53

Green 1000-1500

Front 54

A class AA hydrant should be ______ color and offers __ GPM

Back 54

Blue 1500 or more

Front 55

A minimum of _____ inches or _____ feet is required between the top of the strainer and the surface of water and from the bottom of the source.

Back 55

2

Front 56

Dry hydrants installed at static water sources are made to pump ______ GPM

Back 56

1000

Front 57

True or False: During a fast dump operation it is best to have the driver unload a water tender

Back 57

False

Front 58

Water shuttle operations are recommended anytime the distance of travel exceeds?

Back 58

1/2 mile

Front 59

Jet nozzles supplied by 1 1/2 inch hose supply water at

Back 59

500 GPM

Front 60

What are the two types of portable water tanks?

Back 60

Collapsable metal frame and self supporting

Front 61

This portable water tank is commonly used in wild land operations

Back 61

Self Supporting

Front 62

NFPA ______ requires that fire apparatus dump water at gound level at a rate of 1000 GPM

Back 62

1901

Front 63

During relay operation the strongest pump should be located ????

Back 63

At the water source