9 Master Stream Appliances

Question 1

During large fire incidents where should apparatus be located

Answer 1

Should be positioned so that radiant heat convected heat burning embers or structural collapse will not affect the safety of firefighters

Question 2

When shouldn’t master stream appliances be placed in service defensively

Answer 2

While an offense of interior attack is being conducted

Question 3

When our master stream appliances used

Answer 3

When handheld hose lines are ineffective they are used for fire attack exposure protection and back up

Question 4

To be effective master streams require flows of what range

Answer 4

350 to 2000 gallons per minute

Question 5

What are the three types of master stream appliances

Answer 5

Portable appliances, fixed appliances, elevated master streams

Question 6

Portable master stream appliances are often referred to as

Answer 6

Deck guns or monitors

Question 7

A portable master stream appliance moves were shifts from its position with might cause it

Answer 7

The nozzle is operating at too low of

Question 8

Safety locks for nozzle angle must be manually released before the novel can you lower below what degree

Answer 8

35°

Question 9

Which type of master stream appliance this placed on the ground and supplied with water from one or more hose line

Answer 9

A portable master stream appliance

Question 10

Ariel pre-pipe water system on and Ariel with 110 feet or less in reach must be capable of flowing what

Answer 10

1000 gallons per minute at 100 psi nozzle pressure at full elevation and extension

Question 11

Inlet size for an aerial waterway must be a minimum of what size

Answer 11

4 inch minimum inlet

Question 12

The most common sizes of smooth for tips for master stream

Answer 12

1 3/8, 1 1/2, 1 3/4, 2 inch

Question 13

Smooth bore master stream tips operate at what pressure

Answer 13

80 psi

Question 14

An inch and three eights smooth for tip will flow how many gallons per minute

Answer 14

500 GPM

Question 15

An inch and a half smooth for tip will follow how many GPM

Answer 15

600 GPM

Question 16

The inch and three-quarter tip will flow how many GPM

Answer 16

800 GPM

Question 17

The 2 inch tip will flow how many GPM

Answer 17

1000 GPM

Question 18

Which size tip can be used on the master stream appliance when there is not enough water volume to feed the common sizes

Answer 18

Inch and a quarter tip

Question 19

The inch and a quarter tip at 80 PSI on a master stream will flow how many GPM

Answer 19

400 GPM

Question 20

Master stream spray nozzles operate at what PSI

Answer 20

100 psi

Question 21

Master stream spraying all souls generally range what gallons per minute

Answer 21

300 to 1250 GPM

Question 22

Water supply must be sufficient for the size small for tip selected. If not what can be done

Answer 22

Use a smaller size tip that suits the water supply

Question 23

What is the friction loss in a master stream device

Answer 23

20 to 25 pounds

Question 24

When using smaller supply lines what is the maximum suggested a length of hose to be used between pumper and master stream

Answer 24

100 feet

Question 25

What are the four recommendations supply master streams

Answer 25

Locate a pumper any hydrant for suitable water support, use LDH for adequate number of small supply lines, use LDH or enough supply lines while relay pumping, maintain a 100 foot minimum with some small supply lines LDH will be longer

Question 26

A great deal of extra pressure will do what to a solid stream of a master stream

Answer 26

Break up while leaving the nozzle making it an effective

Question 27

Which stream nozzle is most effective for fire attack when using the master stream appliance

Answer 27

Solid stream nozzle, it will penetrate further into the building covering more area of fire

Question 28

If distance is appropriate and the wind will not affect the stream which nozzle may be more effective for exposure protection with master streams

Answer 28

Spray nozzle

Question 29

Spray nozzle Street streams lose its effectiveness if applied over distance true/false

Answer 29

True

Question 30

If Spraying nozzles on master streams cannot be positioned close enough to the fire to be effective what should be done

Answer 30

Solid stream nozzle should be used

Question 31

While directing the stream into a building how should the appliance be positioned for the most effectiveness

Answer 31

Should be moved horizontally back-and-forth across the fire area, And up-and-down so that reaches the full depth of the fire area

Question 32

True/false master streams can be left unattended indefinitely

Answer 32

False, they cannot

Question 33

Why might a master stream not seem to be having any affect on a fire

Answer 33

It could be positioned improperly

Question 34

When the target is not visible through heavy smoke what signs are indications that the master stream is not adjusted properly or entering the building

Answer 34

The sound of water or stream hitting the building, heavy water run off

Question 35

Steam and or white smoke is an indication that the fire, what sign indicates the fire is extinguished

Answer 35

Weinstein and or white smoke are no longer visible

Question 36

How long should a master stream be used for

Answer 36

Only as long as fire is visible

Question 37

Elevated streams must never be directed into natural openings such as skylights scuttles hatches vent holes or self ventilated holes because

Answer 37

You can force heat smoke and fire back down into the building and to lower floors

Question 38

Master stream appliances require water flows from

Answer 38

350 to 2000 GPM

Question 39

Elevated master stream appliances must be present with pre-piped waterways on which type of aerial device

Answer 39

Elevated platform

Question 40

Minimum size small for tip for a master stream is

Answer 40

Inch and a quarter

Question 41

Strong crosswinds will affect what type of master streams pattern or nozzle type

Answer 41

All of them

Question 42

Master streams operating from the exterior to the interior of the building should be moved how

Answer 42

The stream should be moved both horizontally and vertically

Question 43

Large caliber devices that are used primarily during defensive operations

Answer 43

Master stream appliances

Question 44

A safety lock is provided on portable master streams to prevent lowering the nozzle below what degrees or angle

Answer 44

35° angle