***TB TOOLS 7 DS 17 High Rise Nozzle Flashcards
(16 cards)
Weight of the HRN is?
Approximately 10 pounds.
The diameter of the pipe is?
2 1/2”
Standard ___shutoff with ___MST
2 1/2” nozzle
1 1/8” tip
Length of HRN is___long with a ___degree__foot bend to provide the proper angle for the water stream.
8 feet long
68 degree
2 foot bend
4.1
Is the 1 1/8” tip removable and when should it be checked?
The Tip IS REMOVABLE and should be checked weekly at MUD and BEFORE use.
4.2
It is the responsibility of the ___due Engine to bring the HRN to the Command Post.
4th due Engine/
2.3
T/F
Upon arrival the Officer will have the unit bring the HRN, 1 length of 2 1/2” hose per FF, and the SP Kit w controlling nozzle in to the IC at LCP.
TRUE
2.3
Supplied by a ___hoseline, the HRN will produce flows of ___-___GPM at ___psi nozzle pressure w water flowing.
2 1/2” hoseline
200-225 psi
50 psi
As a general rule when supplying the HRN with 3 lengths of 2 1/2” hose, the pressure at the outlet gauge should be ___psi w water flowing and ___psi when using 4 lengths.
70psi=3 lengths
80psi=4 lengths
4.3
Putting the HRN into operation will require the services of___engine company(ies) equipped with roll-ups,SP Kit, FE tools including a rabbit tool and the HRN.
2 Engine Companies
5.6
In most cases it is/is not necessary to remove the window tot operate the nozzle.
it is not necessary to remove the window.
5.9
T/F
The supply line must be attached to the HRN before the nozzle is slid out on the window sill for use
TRUE
5.10
The Officer supervising HRN use will initiate and maintain HT contact with the___to make sure the nozzle is being operated efficiently and the stream is knocking down the fire.
SPOTTER
5.11
A Shut–off shall be placed in line___length(s) back from the nozzle.
1 length back from the nozzle. When repositioning thee HRN is required, the supply line should be shut down at the shut off located 1 length back and the nozzle opened to bleed the line.
5.14
T/F
The nozzle will not be operated until the IC has given approval.
TRUE
5.14
If repairs are needed to the HRN, the company officer shall contact___via phone and request a replacement.
Technical Services for a replacement w a RT2
6.1