Hose, Streams, and Nozzles

Question 1

Which hose diameter is used in both supply line and attack handline?

Answer 1

2.5”

Question 2

In general, what volume does a 2.5” handline flow?

Answer 2

250 GPM

Question 3

Hard rubber hose stored on a hose reel is ___ hose.

Answer 3

Booster

Question 4

A 50’ section of charged 2.5” hose weights approximately ___.

Answer 4

140 lbs.

Question 5

What is the term for a hose line that is stored on an engine connected to a discharge and equipped with a nozzle for immediate deployment?

Answer 5

Preconnect

Question 6

Which type of load is commonly used for preconnected attack lines?

Answer 6

Minuteman

Question 7

The function of a standpipe system is to provide___.

Answer 7

A water supply for interior attack lines.

Question 8

Attack lines should be connected to a standpipe system ___.

Answer 8

One floor below the fire floor.

Question 9

What is the advantage of a smooth-bore nozzle?

Answer 9

Longer stream reach

Question 10

Most smooth-bore nozzles are designed to operate at which pressure?

Answer 10

50 PSI

Question 11

What is an advantage of a fog-stream nozzle?

Answer 11

Greater heat absorption per gallon discharged.

Question 12

Generally speaking, a 1.75” attack hose can flow___.

Answer 12

120-180 GPM

Question 13

Master streams flow a minimum of___.

Answer 13

350 GPM

Question 14

For which preconnected hose load does the fire fighter shoulder part of the load, with hose paying off the top of that load as the fire fighter advances?

Answer 14

Minuteman

Question 15

What is the correct procedure for the triple layer load?

Answer 15

The entire load must be on the ground before the nozzle can be advanced.

Question 16

Which preconnected hose load forms an S-shape in the hose bed?

Answer 16

Triple Layer

Question 17

When there is extra hose at the entry of the building, how should that hose be arranged?

Answer 17

A serpentine pattern.

Question 18

What is the correct procedure for deploying a triple-layer load preconnect?

Answer 18

Place the nozzle and the top of the fold over the should and walk away form the apparatus

Question 19

Which attack line load is particularly useful when the line must be advanced up a stairway?

Answer 19

Minuteman

Question 20

How should fire fighters space themselves when advancing an uncharged line up a ladder?

Answer 20

One fire fighter on each ladder section

Question 21

Compared to fog nozzle streams, smooth-bore nozzle streams __.

Answer 21

Absorb less heat.

Question 22

Which statement about straight streams is correct?
A) A straight stream is discharged from an adjustable fog nozzle.
B) a straight stream is the same as a solid stream.
C) A straight stream is discharged from a smooth-bore nozzle.
D) A straight stream resists breakup better than a solid stream.

Answer 22

A) A straight stream is discharged from an adjustable fog nozzle.

Question 23

Most fog nozzles are designed to operate at which nozzle pressure?

Answer 23

100 PSI

Question 24

What is a characteristic of a fog stream?

Answer 24

It creates water droplets with a large surface area.

Question 25

Which type of stream is most likely to disrupt thermal balance?

Answer 25

Fog

Question 26

Why is it necessary to limit the lowest stream angle of a portable monitor?

Answer 26

To prevent instability of the monitor

Question 27

What is the most frequently used hose line for interior attack?

Answer 27

1.75"

Question 28

An elevated master stream device mounted at the tip of an aerial ladder is a ___.

Answer 28

Ladder Pipe

Question 29

The Higbee indicator is:

Answer 29

utilized for aligning the male with the female coupling.

Question 30

A hose adaptor connects two hose sections of ___.

Answer 30

Equal diameter but differing threads

Question 31

Which item is used to attach a smaller hose to a larger one?

Answer 31

Reducer

Question 32

Which coupling goes on the inside of a straight hose roll?

Answer 32

Male

Question 33

Which hose load has the hose up on its edge and placed around the perimeter of the hose bed in a U-shape?

Answer 33

Horseshoe

Question 34

The 2-fire fighter stiff-arm method is used to ___.

Answer 34

Uncouple hose.

Question 35

Which hose load has the hose up on its edge and laid side-to-side in the hose bed?

Answer 35

Accordion

Question 36

A short fold in a supply hose load that prevents a coupling from flipping around when the hose is being laid out is a ___.

Answer 36

Dutchman

Question 37

Which type of hose roll is used to store hose on a storage rack?

Answer 37

Straight

Question 38

Prior to entering a fire area with a charged hose line, the nozzle operator should first:

Answer 38

Bleed air from the line.

Question 39

When advancing a hose line into a structure fire, the fire fighter on the nozzle and the back-up fire fighter should be:

Answer 39

On the same side of the hose line.

Question 40

The fire hose is generally classified by its size (inside diameter) and by:

Answer 40

Material of construction

Question 41

All of the following are one-person methods of uncoupling hose except the ___. A) knee-press B) stiff-arm C) coupling-tilt D) foot-tilt

Answer 41

B) Stiff Arm

Question 42

The most often used hose lay at fire scenes is the ___ lay.

Answer 42

Forward

Question 43

When should the fire fighter attaching the hose to the hydrant charge the supply line?

Answer 43

Not until the driver/operator signal is received

Question 44

When performing a forward lay, the pumper is driven from the:

Answer 44

Water source to the fire scene

Question 45

A distinct advantage of the minuteman load over the flat load is that:

Answer 45

the entire load can be advanced without dragging

Question 46

The main advantage of the donut roll is:

Answer 46

Both ends are available on the outside of the roll

Question 47

If dust and dirt on a woven-jacket fire hose cannot be removed by brushing, it should be washed with:

Answer 47

mild soap or detergent

Question 48

When fire fighters are unable to enter the structure or fire area due to intense fire conditions, a(n) ___ attack can be made.

Answer 48

Indirect

Question 49

Fine water droplets and maximum high water surface area are characteristics of a ___ stream.

Answer 49

Fog

Question 50

A stream designed to be as compact as possible with little shower or spray is known as a ___ stream.

Answer 50

Solid

Question 51

The 4 elements that make a fire stream are a pump, water, nozzle, and:

Answer 51

Hose

Question 52

A straight stream is discharged from a(n) ___ nozzle.

Answer 52

Adjustable-Fog

Question 53

One way to identify the physical structure of a male coupling is by the:

Answer 53

Lugs on the shank

Question 54

What hose lay causes the least wear due to vibration in the truck.

Answer 54

Flat

Question 55

What is a hose appliance?

Answer 55

Anything that water runs through.

Question 56

What is a hose tool?

Answer 56

Device to move or operate hose lines.