Ch 4 Hoseline Selection, Stretching, and Placement

Question 1

In the US roughly how many percent of Fire deaths occur in residential buildings? Pg 64

Answer 1

75%

Question 2

What are the two types of fog nozzles? Pg 85

Answer 2

Constant gallonage and constant pressure (automatic)

Question 3

Which has been dubbed the “floor below nozzle” and is currently deployed in every one of the FDNY’s 49 field battalions? p. 91

Answer 3

Navy nozzle

Question 4

What is determined by answering the question of how much water is needed to remove the heat being generated by the fire? p. 62

Answer 4

Size of hoseline

Question 5

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

Answer 5

One

Question 6

What is the recommended flow rate for most commercial occupancies today? p. 67

Answer 6

0.35 gpm/sq ft

Question 7

At what flow is it best to place the manual setting at the start of operations when using a constant-gallonage nozzle?p. 85

Answer 7

Maximum flow

Question 8

What size hoseline have companies who respond to many fires in multistory apartment buildings found to be very suitable? p. 64

Answer 8

1 3/4-inch

Question 9

How many people are needed to handle a 2 1/2-inch hoseline
flowing 325 gpm? p. 66

Answer 9

Two

Question 10

What should the objective of the first hoseline placed at a heavy fire in a one-story strip mall be? p. 77

Answer 10

Cut off/confine the fire

Question 11

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

Answer 11

60

Question 12

What is the greatest protection from radiant heat for an exposed building?
p. 81

Answer 12

Distance

Question 13

To what advantage were wetting agents initially limited to during the 1980s? p. 88

Answer 13

Reducing overhaul

Question 14

What is it that ultimately puts out the fire? p. 87

Answer 14

Gallons per minute delivered

Question 15

In which scenario will the greatest amount of heat, fire, and gases be forced into the building? p. 76

Answer 15

Fog stream from the exterior which covers the entire window opening

Question 16

Where should water be applied when radiant heat is present? p. 82

Answer 16

Surface absorbing the heat

Question 17

What will determine the location of line placement at occupied buildings?
p. 79

Answer 17

Life hazard

Question 18

Once the fire reaches what floor (and above) is it nearly always more efficient to stretch immediately to the fire? p. 78

Answer 18

Third

Question 19

How many paces should the nozzle operator step off once the working length of hose has been removed from the hose bed? p. 70

Answer 19

Two or three

Question 20

Fires in which type of occupancy are more commonly encountered by the fire service? p. 63

Answer 20

Residential

Question 21

What is the minimum amount of hose that even relatively small commercial buildings can require? p. 68

Answer 21

300 feet

Question 22

What did the 1 1/2-inch Navy fog nozzle flow? p. 77

Answer 22

54 gpm

Question 23

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

Answer 23

Four

Question 24

How should the nozzle be set during normal use during an incident? p. 82

Answer 24

Fully open

Question 25

What width area can the cockloft nozzle apply water over? p. 92

Answer 25

100-foot

Question 26

Who is usually best able to judge the stream during operations? p. 87

Answer 26

Nozzle operator

Question 27

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

Answer 27

Life hazard