6 Initial Attack Lines

Question 1

In almost all offensive fire attack situations, which type of attack is used

Answer 1

Direct attack

Question 2

A type of fire attack in which a solid or straight hose stream is used to deliver water directly onto the base of a fire

Answer 2

Direct attack

Question 3

A type of fire attack in which a solid, straight, or a narrow fog stream is used to direct water at the ceiling to cool superheated gases in the upper levels of the room

Answer 3

Indirect attack

Question 4

What is the objective of the indirect attack, by removing heat from the upper atmosphere

Answer 4

Preventing flashover

Question 5

A disadvantage of an indirect attack

Answer 5

Steam expansion ratio can cause serious burns to firefighters and victims

Question 6

In an area were victims are located which type of attack is a poor choice

Answer 6

Indirect attack

Question 7

When the area has been cool down and ventilation has taken place indirect attack should be changed to

Answer 7

Direct attack

Question 8

A type of fire attack that uses both direct and indirect methods one after the other

Answer 8

Combination attack

Question 9

Fire attack inside of buildings being demolished or abandoned buildings, or ones that have been burning for a long time should not be what

Answer 9

Aggressive interior attack

Question 10

Fire attack for the dangerous structures such as an abandoned building or in demolition should be conducted how

Answer 10

Exterior attack followed by interior attack once fire is knocked down

Question 11

What does choosing the size or sizes of an attack line depend on

Answer 11

The extent and location of the fire and how it will be fought

Question 12

Most fire department she has what size lines for interior attack hose

Answer 12

One and three-quarter inch, 2 1/2 inch

Question 13

The typical inch and a half attack line is equipped with a spray nozzle that would discharge under proper pressure how many gallons per minute

Answer 13

60 to 125 GPM

Question 14

With either a smoothbore nozzle or a spray nozzle an inch and three-quarter line can discharge how many GPM

Answer 14

120 to 200 GPM

Question 15

On a 2 1/2 inch attack wine with a nozzle pressure of 50 psi the inch and an eighth smoothbore tip will produce how many gallons per minute

Answer 15

265 GPM

Question 16

I 2 1/2 inch attack line with a novel pressure of 50 psi the inch and a quarter smoothbore tip will discharge how many GPM

Answer 16

325 GPM

Question 17

Most effective nozzle patterns are

Answer 17

Straight streams or solid stream

Question 18

Spray nozzles adjusted on a fog pattern inside a building should be restricted to which type of locations

Answer 18

And occupied confined spaces, such as basements on occupied, ethics, or storage areas

Question 19

In almost all cases spray nozzles are designed to deliver their rated flow capacity at what PSI

Answer 19

100 psi

Question 20

At 50 PSI on 8 inch and three-quarter attack wine a smoothbore 15/16 inch tip flows how many GPM

Answer 20

180 GPM

Question 21

On an inch and three-quarter attack wine operating at 50 PSI nozzle pressure the 1 inch tip flowers how many GPM

Answer 21

200 GPM

Question 22

List the four types of spray nozzles commonly available

Answer 22

Basic spray nozzle,
constant gallonage spray nozzle,
constant pressure automatic spray nozzle,
and the constant/select gallonage spray nozzle

Question 23

Basic spray nozzle

Answer 23

Adjustable spray nozzle where the rated discharges delivered at the designed pressure and nozzle setting

Question 24

Constant gallonage spray nozzle

Answer 24

Adjustable pattern spray nozzle discharging constant flow rate throughout the range of patterns

Question 25

Constant pressure automatic spray nozzle

Answer 25

Spray nozzle where the pressure remains relatively constant throughout the range of discharge rates. Designed to maintain a minimum hundred psi tip regardless of gallonage flow

Question 26

After entering an area that is very hot and finding no fire what should be done

Answer 26

Check the area below adjacent areas walls and ceilings or other void spaces for extension

Question 27

If the fire is large enough to the master stream must be used for an initial attack offense of operations should be

Answer 27

Curtailed and firefighters should not be allowed to enter the structure

Question 28

With 50% involvement of a commercial space what size line should be the interior attack

Answer 28

2 1/2 inch

Question 29

In the case of a basement much like a concrete vault with no means to quickly ventilate what type of line should be used

Answer 29

Two and a half smoothbore from an outside opening

Question 30

Are far has gained control of a good portion of a large floor area what should be used to attack the fire and what should be used in support

Answer 30

2 1/2 inch attack line on the fire floor, inch and three-quarter attack line on the floor above around and under fire to prevent extension

Question 31

True/false house lines do not need to be advanced to upper floors of a fire building

Answer 31

False they must be advanced to upper floors

Question 32

Hose lines maybe advanced using the following methods

Answer 32

Ground ladders aerials or platforms.
Hoist with ropes.
Carry into the building and connected to an outside hose line through window.
Passed up to a window with a pike pole

Question 33

Why is it important to control the stairway and prevent fire extension

Answer 33

To illuminate them as channels for vertical spread of fire and keep them open as escape routes

Question 34

Alternative methods may require much less hose than advancing up the stairway. How much hose must be allotted for each floor going up the staircase as opposed to the face of building

Answer 34

50 foot section per floor, 50 foot section per 4 to 5 stories

Question 35

Ventilation of stairways and hallways as a upmost importance firefighters attempting to Advance lines should do what

Answer 35

Vent as they go

Question 36

Free burning fired should be managed with what type of attack tactic

Answer 36

Coordinated attack

Question 37

Indications of a smoldering fire are

Answer 37

Little or no fire visible from outside.
Rapidly rising smoke.
Building secured tightly.
Smoke under pressure from windows doors or other openings.
Yellow or dirty brown smoke.
Window glass stained brown or black with cracking.
Smoke exiting the building appearing to be sucked back in, breathing

Question 38

One of the main fuels and a smoldering fire is what

Answer 38

Heated carbon monoxide, hindering oxygen use by the fire

Question 39

Backdraft is

Answer 39

The sudden explosive ignition of fire gases when oxygen is introduced into a superheated space previously deprived of oxygen

Question 40

Ventilation of the smoldering fire requires what

Answer 40

Opening made at the highest point safe. Allow that superheated gases out to prevent explosive nature

Question 41

True/false ventilation must take place before any attempt is made to enter the building during a smoldering fire otherwise entering may cause immediate ignition

Answer 41

True

Question 42

During the ventilation of a smoldering fire engine companies should be prepared with what

Answer 42

Charged attack lines in a safe area

Question 43

It is recommended that the Inch and a half hoes be

Answer 43

Eliminated from structural firefighting

Question 44

When a single inch and three-quarter hose line is ineffective and extinguishing a larger fire

Answer 44

Additional larger hose lines should be used

Question 45

Which type of stream is the safest and most effective when conducting interior firefighting operations in an occupied area

Answer 45

Solid or straight stream

Question 46

When confronted with a well involved fire in a part of a structure below an occupied area, basement storage fire below apartments, it is usually best to

Answer 46

Attack using a 2 1/2 inch line with solid stream, lay and inch and three-quarter line to the floor above the fire

Question 47

A type of fire where all three requirements for combustion /oxygen fuel and heat, are present in sufficient quantities to promote the spread of flames and fire

Answer 47

Free burning