ECH Chapter 7-9 Flashcards
Where is the best location to drop ceiling for an attic fire?
The hallway
What is the minimum size hole you should make to get into the attic?
4 X 4
What is the reason for putting a FF in the attic with a nozzle rather than using a fog pattern from below?
“Steaming” the attic only works on small sealed attics. Nozzle will not reach all corners
Where might you find the interior stairs to the basement on a 2 story home?
below the staircase to the second floor
Why are the exterior stairs the best option to fight a basement fire?
these stairs typically offer more space to work and better ventilation
What are three types of exposures to be considered at fires?
life, interior, and exterior
Exterior exposure hose lines should almost always be?
2 1/2
What are the 2 most noticeable styles of Victorian homes called?
The Italianate and 2 1/2 story Queen Anne
What is a common indicator of balloon frame construction?
presence of identical windows that line up vertically over each other
Where should the 2 out line be placed on a 2 story apartment complex fire?
At the base of the stairs out of the way.
When did Sacramento begin to see the construction of the Fireproof Residential High-Rise?
the late 1960’s
What is the difference between a Class I and Class II standpipe?
I is a stairwell standpipe and II is a houseline
Wet standpipe systems installed prior to 1993 are required to provide only PSI at the buildings highest standpipe output.
65
Fires that involve units on the floor and above should be fought off the standpipe, per department SOGs
4th
A general guideline to follow is do not operate more than
inside a commercial building unless absolutely necessary.
150 feet
What are the three basic components of a hydrant?
barrel, discharge outlets, and stem (shut-off valve)
Where is a Clow hydrant typically found?
Industrial areas
A 4½” hydrant outlet will deliver with a flow pressure of psi.
2,100 gpm, 15 psi
Red: Less than GPM
Yellow: GPM
Green: GPM or more
500
500-999
1000 or more
NFPA is the standard for the Installation of Standpipe and Hose Systems
14
What are the characteristics of a “Looped” standpipe system?
a single set of connections supplies water for all of the fire protection systems in the building (looped system)
The current NFPA standards require a minimum of a psi at the top outlet.
100
What does the residential high rise hose compliment consist of?
1 Sacramento Pack plus high-rise bundle #1 and bundle #3.
psi at the gauge for 100’ of 2½” hose
psi at the gauge for 150’ of 2½” hose
psi at the gauge for 200’ of 2½” hose
for high rise hose
70
75
85
The most common type of flow-restricting device is an
orifice plate
Sacramento Fire SOGs allow crews to use the elevators for fires above the floor
7th
The two primary reasons for using the pigtail are:
1) when access to the standpipe valve is limited by the size constraints of the hose cabinet;
2) from dry standpipe outlets adjacent to fire escapes. In either case utilizing the pigtail allows the wye to be placed inside the public hallway. If the pigtail is not needed to overcome access problems, then it can be added to the discharge side of the wye.
