Chapter 13

Question 1

The most important question and infinite commander must ask is

Answer 1

At what point does this building no longer have any value when the life safety priority has been addressed and there’s no suitable property to protect the primary mission is over it’s time to put the fire out with a master stream

Question 2

What is a large caliber device used primarily during defensive strategy operations they are also known as heavy stream and large caliber stream devices

Answer 2

Master stream

Question 3

Master Stream appliances are also used in ‘’’ attacks

Answer 3

Transitional

Question 4

What are the two types of master stream transitional attacks? Which one is riskier ?

Answer 4

Offensive- defensive - risker
Defensive- offensive

Question 5

What ATTACK is an example of a pre-plumbed monitor that is defense to offensive transitional attack regarding master stream transitional attacks

Answer 5

Blitz attack

Question 6

What should be one of the safest fires we fight?

Answer 6

Defensive

Question 7

What zone is an area endangered by potential wall collapse of a building it is calculated by the distance out of the wall ‘’ the height of the involved building

Answer 7

Collapse zone, 1.5 times the height

Question 8

Master stream appliances should be As far away from the fire as possible without compromising their ‘’

Answer 8

effectiveness p. 421

Question 9

There are essentially how many types of master stream appliances… What are they?

Answer 9

3
Two are carried on engine ( fixed and portable )
1 on aerial ladder

Question 10

Portable mass appliances are often referred to as x4

Answer 10

deluges
Monitors
Deck guns
Ladder pipe

Question 11

The safety lock is provided so that the lock must be manually release before the barrel can be lowered below ‘’ angle

Answer 11

35° p. 424

Question 12

Water supplied to the ‘’ appliance in one of two ways, which are:
1- pre-plumbed to the appliance from a separate discharge gate on the pump
2 - supplied by hose lines with one or more connections to the pumpers discharge our. Can be monitors on trucks.( monitors.)

Answer 12

fixed

Question 13

Depending on the size carried on the monitor, it can flow between ‘’’ gpm, which gives only between’’’ seconds of water

Answer 13

500 to 1000 gallons per minute
30 to 60 seconds of water

Question 14

Elevated platforms of’’’ ft or less rated vertical height must have a permanent water delivery system installed capable of delivering ‘’’ gallons per ‘’’ psi nozzle pressure with elevating platforms at its rated vertical height

Answer 14

110 feet
Thousand gallons per minute at 100 psi

Question 15

Permanent waterways on both aerial ladders and elevating platforms must be arranged so that they can supply at ground level through an external intake. That is a minimum of ‘’ inches

Answer 15

4 inches

Question 16

Various sizes of smooth board tips are available for use with master stream app appliances. The most common are.

Answer 16

1 1/4 - 400 gpm
1 3/8 - 500 gpm
1 1/2 - 600
1 3/4 - 800
2 inch - 1000
Usually operate at nozzle pressures of 80 PSI

Question 17

If Water supply is a problem regarding master streams what must be used?

Answer 17

A smaller tip

Question 18

1 1/4 inch tip is often furnished as part of

Answer 18

A ladder pipes assortment of smooth board tips

Question 19

Combination master stream nozzles are available many sizes their designed to operate at ‘’’ psi with water delivery rage, generally up from the ‘’

Answer 19

Hundred PSI
300 to 1250 GPM p. 427

Question 20

Some combinations spray nozzles are constructed so that the flow rates can be buried generally in increments of

Answer 20

250
350
500
750
1000 GPM

Question 21

Master stream appliance is only as good as

Answer 21

It’s water supply p. 428

Question 22

Never lay forward from a hydrant ‘’’ unless another engine is hooked up to the hydrant

Answer 22

To the Aerial ladder for ladder pipe operations

Question 23

COMBO Spray nozzle should be used to cover ‘’ : bore tips are better suited for?

Answer 23

Exposure fires
Firefighting

Question 24

What has proven to be the most effective for fire attack when using a master stream appliance REGARDING NOZZLE

Answer 24

The solid stream from a smooth bore tip, penetrates farther into the building, covering more of the fire while delivering more GPM and is least affected by the wind

Question 25

What nozzle using a straight stream even from a master stream appliances loses its effectiveness if it must be applied over any distance

Answer 25

Comb spray nozzle using a straight stream

Question 26

If there's any question about ability of a straight stream to reach a fire or exposure or windy conditions, what should be used?

Answer 26

Solid stream from a smooth bore p. 432

Question 27

On average aerial ladder, pipes and tower ladder, master streams are effective up to what floor

Answer 27

12th floor

Question 28

To be most effective and fire control, and master stream should be moved

Answer 28

Horizontally back-and-forth across the Fire area it is covering Up and down/side to side

Question 29

How to tell if the master stream is entering the building: use a ''' listen for '' look for '' theses are all signs the stream isnt entering the building..

Answer 29

use a Tic Listen for the sound of the stream hitting the building And you should look for heavy water runoff both signs indicate the stream is not entering the building p. 435

Question 30

Direct water on the exposure is more effective than Directing a stream between the fire and the exposure, unless a '' is specifically set up to extinguish flying embers as in large lumberyard fires.

Answer 30

water curtain

Question 31

''' stream is most effective when using an elevated stream appliance

Answer 31

Solid stream

Question 32

For exposure protection nozzle, using a '' nozzle may be superior to a solid stream if it is not affected by the wind or distance from the fire

Answer 32

fog stream Combination

Question 33

Elevated master streams, especially fog streams, must never be

Answer 33

Directed into naturally exhaust openings such as skylights scuttles and hatches , holes made in the roof for venting the smoke or whatever the fires already burned through the roof p. 437

Question 34

Firefighters vent roof to allow what to escape the building so that interior attacks can be carried out

Answer 34

Smoke heat, and gases

Question 35

Vertical ventilation allows FF to perform a '', get to the seat of the fire and ''

Answer 35

Primary search Apply water to extinguish the fire

Question 36

The mistake of directing elevated mass streams into an opening or vent is essentially placing a lid over the ventilation exhaust, prevent the heat and gases from escaping it causes the ventilation flow path to

Answer 36

Reverse itself and seek other least resistance in order to vent p-. 437

Question 37

The interior warning signs for '' include: Spongy roof and sagging roof deck Sagging floors or fire burning from the floors Ceiling dropping Structural movement of floors, bearing wall, beams, and columns Loud noises

Answer 37

collapse

Question 38

Examples of '' warning, signs of building collapse: Fires burning out of control longer than 20 minutes without progress No water runoff from stairways and doors Cracks in the walls Water and smoke pushing from cracks Separation of the roof from the walls Visible on every floor. 439

Answer 38

exterior

Question 39

What is an alternative method to fire scene tape when marking off the collapse zone?

Answer 39

Uncharged fire line

Question 40

Up to what water flow can master stream appliances require

Answer 40

2000 GPM

Question 41

How long can you supply water from the tank on the engine when using a fixed master stream appliance during a blitz attack?

Answer 41

30 -60 SECS

Question 42

At what pressure do smooth-bore tips on master stream appliances operate? PSI

Answer 42

80 PSI

Question 43

Which type of attack is used when there is more fire than 1 3/4-inch and 2 1/2-inch hand lines can handle, but the building still has value and is savable? WHAT ATTACK IS AN EXAMPLE ?

Answer 43

Defensive to offensive transitional attack Blitz attack

Question 44

What happens when water is delivered to the master stream nozzles at an insufficient rate

Answer 44

Stream breaks up 427

Question 45

What is the smallest tip used on master stream appliances? p. 427

Answer 45

1 1/4

Question 46

What part of the fire must the master stream reach to be effective in extinguishing the fire? p. 434

Answer 46

base

Question 47

Where is it best to position elevated master stream appliances when operating in a defensive mode to achieve effective streams? p. 437

Answer 47

AT THE CORNERS