Ch 4 Hoseline Selection, Stretching, and Placement Flashcards
In the US roughly how many percent of Fire deaths occur in residential buildings? Pg 64
75%
What are the two types of fog nozzles? Pg 85
Constant gallonage and constant pressure (automatic)
Which has been dubbed the “floor below nozzle” and is currently deployed in every one of the FDNY’s 49 field battalions? p. 91
Navy nozzle
What is determined by answering the question of how much water is needed to remove the heat being generated by the fire? p. 62
Size of hoseline
As a rule of thumb, how many lengths of hose should be stretched for each floor above or below the level that the
fire is on to avoid stretching short? p. 69
One
What is the recommended flow rate for most commercial occupancies today? p. 67
0.35 gpm/sq ft
At what flow is it best to place the manual setting at the start of operations when using a constant-gallonage nozzle?p. 85
Maximum flow
What size hoseline have companies who respond to many fires in multistory apartment buildings found to be very suitable? p. 64
1 3/4-inch
How many people are needed to handle a 2 1/2-inch hoseline
flowing 325 gpm? p. 66
Two
What should the objective of the first hoseline placed at a heavy fire in a one-story strip mall be? p. 77
Cut off/confine the fire
How many gallons per minute for every 100 square feet of space is required for a fire in a high-fire-load-area? p. 62
60
What is the greatest protection from radiant heat for an exposed building?
p. 81
Distance
To what advantage were wetting agents initially limited to during the 1980s? p. 88
Reducing overhaul
What is it that ultimately puts out the fire? p. 87
Gallons per minute delivered
In which scenario will the greatest amount of heat, fire, and gases be forced into the building? p. 76
Fog stream from the exterior which covers the entire window opening
Where should water be applied when radiant heat is present? p. 82
Surface absorbing the heat
What will determine the location of line placement at occupied buildings?
p. 79
Life hazard
Once the fire reaches what floor (and above) is it nearly always more efficient to stretch immediately to the fire? p. 78
Third
How many paces should the nozzle operator step off once the working length of hose has been removed from the hose bed? p. 70
Two or three
Fires in which type of occupancy are more commonly encountered by the fire service? p. 63
Residential
What is the minimum amount of hose that even relatively small commercial buildings can require? p. 68
300 feet
What did the 1 1/2-inch Navy fog nozzle flow? p. 77
54 gpm
As a rule of thumb, what is the maximum number of lengths
of 1 1/2-inch hose for a preconnect that will flow 125 gpm? p. 67
Four
How should the nozzle be set during normal use during an incident? p. 82
Fully open
What width area can the cockloft nozzle apply water over? p. 92
100-foot
Who is usually best able to judge the stream during operations? p. 87
Nozzle operator
What is the first factor that must be considered when making a decision about whether to commit the first line
to interior operations or to act as an exposure protection line? p. 80
Life hazard
