Water Supply, Hose, Tools

Question 0

Static pressure

Answer 0

“Stored potential”

Normal pressure before water is released by a hydrant

Question 1

Pressure

Answer 1

Defined as the force per unit area, measured in psi or kPa

Question 2

Flow pressure

Answer 2

“Forward velocity”
Pressure discharged while opening and water Is flowing
Can be measured with pitot tube

Question 3

Residual pressure

Answer 3

“Pressure left in distribution system”

Question 4

Dry barrel

Answer 4

Installed is areas where freezing conditions are expected
Water is below the frost line and hydrant is empty, water is drained when re closed
Stim is vertical

Question 5

How can you verify that the dry hydrant is empty?

Answer 5

Your hand will feel suction

Question 6

Wet barrel

Answer 6

Installed in warmer climates
Always full of water
Stim is horizontal

Question 7

How can you determine the amount of water pressure the hydrant operates?

Answer 7

It will be color coded

Question 8

Hydrants are spaced how far apart in high value areas?

Answer 8

300ft

Question 9

When would you be required intermediate hydrants

Answer 9

When the distance of intersections exceed 350to 400 ft

Question 10

What are two types of water supplies?

Answer 10

Natural- lakes, ponds, rivers, oceans

Manmade- swimming pools, farm stock

Question 11

What is drafting?

Answer 11

Drawing water from a static source to supply a pumper

Question 12

When using a barrel strainer what’s the minimum of water surrounding it?

Answer 12

24inches

Question 13

When would water shuttling operations need to be conducted?

Answer 13

When the distance is greater than 11/2 mile than the capability to lay supply lines

Question 14

What are three key components to water shuttle operations?

Answer 14

Attack apparatus
Fill apparatus
Mobile water supply apparatus

Question 15

What are two basic types of portable water tanks?

Answer 15

Collapsible

Self supporting

Question 16

What needs to take place prior to opening a portable water tank?

Answer 16

Lay out a salvage cover

Question 17

What are four types of tankers for unloading?

Answer 17

Gravity dumping
Jet pump
Apparatus pumps
Combination

Question 18

Tankers are capable of dumping at what rate?

Answer 18

1,000 gpm

Question 19

What factor must be considered when using a relay?

Answer 19

Water source must be able to supply and maintain desired pressure and volume for the duration of incident

Question 20

What is used to hook up the apparatus to the water source?

Answer 20

Intake hose

Question 21

What are the types of intake hoses used?

Answer 21

Soft

Hard

Question 22

NFPA 1901 requires what?

Answer 22

Pumpers carry 
15ft soft hose 
20ft hard hose 
800ft of 21/2inch hose 
Supply hose may be up to 6inches in diameter 
400ft 11/2 & 11/4 and 2 inch

Question 23

11/2 hose

Answer 23

40-125 gpm

1-2 person

Question 24

13/4 hose

Answer 24

40-175 gpm | 2 person

Question 25

2inch hose

Answer 25

100- 250gpm | 2-3 person

Question 26

What are the four types of hose damage?

Answer 26

Mechanical- Preventive Thermal Organic Chemical

Question 27

What do you do if you get chemicals on your hose?

Answer 27

Scrub with baking soda and water

Question 28

How do you clean dirt off woven jacket hose?

Answer 28

Broom to Brush dirt and dust

Question 29

What are lugs used for?

Answer 29

Aid in tighten and loosen couplings

Question 30

What are pin lugs uses for?

Answer 30

Use higbee cut to indicate coupling aliment

Question 31

Storz couplings

Answer 31

Sexless 1/4 of a turn to connect

Question 32

What does a Siamese do?

Answer 32

Connects two hose lines into one and uses a clapper to use only one supply line

Question 33

Adapter fitting

Answer 33

Double male to double female hook up

Question 34

Reducer fitting

Answer 34

Smaller hose line to lager

Question 35

Elbow fitting

Answer 35

Change the direction of flow

Question 36

Hose cap

Answer 36

Close off male coupling

Question 37

Hose plugs

Answer 37

Close off female

Question 38

What are three types of hose clamps?

Answer 38

Screw down Press down Hydraulic

Question 39

When applying a hose clamp it should be how far from the coupling?

Answer 39

5 ft

Question 40

What are Ramps and bridges used for?

Answer 40

Prevent damage from vehicles running over them

Question 41

Chafing blocks?

Answer 41

Protects the hose where it is subjected to vibrations

Question 42

Hose strap

Answer 42

Secures the hose to ladder

Question 43

What are 3 common types of hose Rolling?

Answer 43

Straight roll Donut roll Twin donut roll

Question 44

What are 3 types of loads?

Answer 44

Accordion Flat load- pre connected Minuteman

Question 45

What are the two types of tests the hose go through?

Answer 45

Acceptance- done by manufacturing | Service- done annually or subject to damage

Question 46

NFPA 1962

Answer 46

Requires hoses to hydro testes at 3 mins at max psi

Question 47

When water is applied to a fire it expands how much greater than original volume?

Answer 47

1700x

Question 48

What is the term when you suddenly stop the psi of the hose line damaging the plug?

Answer 48

Water hammer

Question 49

The rate of discharge is determined by gpm....

Answer 49

Low volume stream- less than 40 gpm Handling stream- 40-350 gpm Master stream- excess 350 gpm

Question 50

Types of direct firefighting

Answer 50

Penciling- short burst solid stream Painting- constant flow Combination

Question 51

What is the most dangerous disputation for fire fighters?

Answer 51

While responding in apparatus

Question 52

What is the only time you will jump from an apparatus?

Answer 52

To clear electrical hazards

Question 53

When do firefighter don hearing protection?

Answer 53

90 decibels

Question 54

What is the most common type of Manmade source for water?

Answer 54

Farm stock tanks

Question 55

What are the three types of strainers?

Answer 55

Barrel Low level Floating

Question 56

What are two types of fog nozzles?

Answer 56

``` Manuel Auto (constant pressure) ```

Question 57

What are the types of nozzles?

Answer 57

``` Fog Smooth bore (solid stream) ```