TB Tools 7 High Rise Nozzle and Cock loft Nozzle Flashcards
If the equipment and resources are available and wind conditions exist, the HRN SHOULD be placed in position as a precaution even if the need is not immediately evident. Who’s responsibility is it to bring the HRN to the command post?
The 4th Due Engine. If the 4th due engine is not equipped with a nozzle the officer shall contact the dispatcher for the identity of the engine company who is equipped the the HRN assigned to the box. (See what unit has the “N” as a suffix)
The HRN is 8’ long with a 2’ bend that is 68 degrees. The 1 1/8” tip is removable and should be inspected weekly during MUD and when?
BEFORE use
The HRN is supplied by a 2 1/2” hose with flows of 200-225 GPM at a nozzle pressure of 50 PSI with water flowing. The standpipe in line pressure gauge must be used. This nozzle can only be placed into operation at the direction of?
The IC, The IC shall announce over the operating FREQUENCIES the the HRN will be placed into operation (all of them)
A spotter should be in place to observe the operation from the exterior. Putting the nozzle into operation requires the services of 2 engine companies. Depending on the situation where may the HRN be stretched from?
Three floors below the fire. 2 1/2” hose MUST be brought to the area of deployment.
The officer supervising the HRN use will initiate and maintain handi talkie contact with the spotter to make sure the nozzle is being operated effectively and the stream is knocking down the fire. If multiple windows are involved start with the window the wind is blowing into then move to other windows located?
Downwind of the original fire room and complete knockdown of the fire.
A shut off shall be placed where?
1 length back. The nozzle will not be operated until the IC has given approval.
The cockloft nozzle is a lil shorter than the HRN it is 6’3” long and weighs 10lbs. It has a reach in excess of 60’. The nozzle is supplied with 2 - 1/2” OST’s and has a discharge rate of approximately 125gpm. it is carried in what vehicle?
Division Vehicles and is inspected weekly
When using a cock loft nozzle in a NFP MD, the preferred location for operation is immediately inside the apartment door. A hole 3’x3’ is needed from the nozzle to fit. How much space between the top of the ceiling and the bottom of the roof joists MUST be?
Min of 4”. Do not rotate the cockloft nozzle in a continuous COUNTER-CLOCKWISE direction, this action can cause the nozzle to become unscrewed from the shutoff
The nozzle can only be placed into operation at the direction of?
Chief Officer not the IC!!!
The cockloft nozzle is supplied at what pressure?
The same pressure normally supplied to a 13/4” hand line. The cock loft nozzle should NEVER be the primary attack line and is ONLY to be used when supported and protected by an additional conventional handline
