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

North master appliances are also used in ‘’’ attacks

Answer 3

Transitional

Question 4

What are the two types of massive transitional attacks?

Answer 4

Offensive- defensive - risker
Defensive- offensive

Question 5

A transitional attack is ‘’’ and used when there is more fire than ?

Answer 5

Defensive to offensive
1 3/4 inch and 2 1/2 inch hand lines are able to handle, but the building still has value and sable

Question 6

What is an example of a pre-plumbed monitor that is defense to offensive transitional attack

Answer 6

Blitz attack

Question 7

What should be one of the safest fires we fight?

Answer 7

Defensive

Question 8

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 8

Collapse zone, 1.5 times the height

Question 9

Master stream appliances should be

Answer 9

As far away from the fire as possible without compromising their effectiveness p. 421

Question 10

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

Answer 10

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

Question 11

Portable mass appliances are often referred to as

Answer 11

deluges
Monitors
Deck guns
Ladder pipe

Question 12

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

Answer 12

35° p. 424

Question 13

Water supplied to the fixed appliance in one of two ways, which are

Answer 13

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 melted on trucks.( monitors.)

Question 14

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

Answer 14

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

Question 15

Elevated platforms of’’’ 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 15

110 feet
Thousand gallons per minute at 100 psi

Question 16

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.

Answer 16

4 inches

Question 17

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

Answer 17

1 3/8
1 1/2
1 3/4
2 inch
Usually operate at nozzle pressures of 80 PSI

Question 18

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

Answer 18

A smaller tip

Question 19

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

Answer 19

A ladder pipes assortment of smooth board tips

Question 20

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

Answer 20

Hundred PSI
300 to 1250 GPM p. 427

Question 21

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

Answer 21

250
350
500
750
1000 GPM

Question 22

Master stream appliance is only as good as

Answer 22

It’s water supply p. 428

Question 23

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

Answer 23

To the Aerial ladder for ladder pipe operations

Question 24

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

Answer 24

Exposure fires
Firefighting

Question 25

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

Answer 25

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 26

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

Answer 26

Comb spray nozzle using a straight stream

Question 27

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 27

Solid stream from a smooth bore p. 432

Question 28

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

Answer 28

12th floor

Question 29

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

Answer 29

Horizontally back-and-forth across the Fire area it is covering

Question 30

How to tell if the master stream is entering the building

Answer 30

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 31

Direct water on the exposure is more effective than

Answer 31

Directing a stream between the fire and the exposure, unless a water curtain is specifically set up to extinguish flying embers as in large lumberyard fires

Question 32

Stream is most effective when using an elevated stream appliance

Answer 32

Solid stream

Question 33

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

Answer 33

Combination

Question 34

Elevated master streams, especially fog streams, must never be

Answer 34

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 35

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

Answer 35

Smoke heat, and gases

Question 36

Vertical ventilation is to perform a ‘’ get to the seat of the fire and ‘’

Answer 36

Primary search
Apply water to extinguish the fire

Question 37

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 37

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

Question 38

The interior warning signs for collapse include

Answer 38

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

Question 39

Examples of exterior warning, signs of building collapse

Answer 39

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