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10/10/2007

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Term
An air operated system used to assist in the physical rescue of victims in a variety of situations is known as...
Definition
Maxi-Force Air Bag System
Term
How many air hoses does the air bag system use, and what are the colors?     
Definition

4 hoses

Red, Yellow, Green, & Blue 

Term
The air bag system has a compliment of 3 bags. What are their lifting capacities?
Definition

2 bags @ 22 ton (21.8 actual lifting capacity)

1 bag @ 12 tons

Term
What does the factory pre-set the dual "dead man" safety relief & control valve to?
Definition
118psi
Term
What will happen if the inflation button is held until pressure within the valve exceeds 118psi?  
Definition
The relief valve will activate
Term
What do you attach the high pressure regulator to?
Definition
A standard 45 or 60 minute SCBA bottle
Term
What is the working pressure of both the 45 and 60 minute SCBA bottles?
Definition
4500psi
Term
In order to provide 118psi working pressure at the dual safety relief and control valve, what should one adjust the pressure to?   
Definition
Between 125-135psi
Term
True or false: The in-line safety relief valve will allow the air bags to remain inflated after the dual "dead man" safety relief and control valve is disconnected?
Definition
True
Term
At what psi will a safety relief valve activate?
Definition
Anything exceeding 135psi
Term
Why do air hoses come in different colors?
Definition
To make identification easier
Term
What are the air hoses equipped with?
Definition
Male & female "quick disconnect" fitting and safety lock ring
Term
From what are the fittings made?
Definition

Brass

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Term
What can happen to the brass fittings if the air bags roll onto them?
Definition
They may crack
Term
How long is each air hose, and what is the working pressure?
Definition

16' long

250psi 

Term
The construction of an air lifting bag is similar to what?
Definition
Modern automotive tubeless tires
Term
From what materials are the air bags made?
Definition
Neoprene rubber compounds encasing kevlar cords
Term
An "X" on one side of the air bag indicates what?
Definition
A non-slip surface (This helps to center the bag under the load)
Term
Adaptors allow for auxiliary air sources to be used. Name two.
Definition

Apparatus on-board air system

Portable air compressor 

Term
What is the minimum amount of cribbing?
Definition

4"x6"x2' (4)

24"x24" plywood (2)

wedges (4) 

Term
When connecting the high pressure regulator to the SCBA bottle, how should one accomplish the last 1/4 turn?
Definition
Turn both the threaded inlet fitting and regulator together until hand tight
Term
If an air bag does not have a load on it, you should not inflate the bag to over...psi
Definition
30psi
Term
LAFD uses three types of air bag lifts. Name them.
Definition

Single bag lift  

Stacked two bag lift   

Side-by-side two bag lift 

Term
What should you always do when lifting an object with the air bags?
Definition
Crib
Term
A good rule of thumb when raising an object is...
Definition
lift and inch, crib an inch
Term
When using the stacked two bag lift, which bag goes on the bottom?
Definition
The bigger bag
Term
In the stacked two bag method, how should the connection points face?
Definition
In different directions (this prevents the air hoses from getting tangled and eliminates confusing supply lines)
Term
Which bag should be inflated first in the two bag stacked method?
Definition
Bottom bag first
Term
When deflating, which bag is deflated first?
Definition
Top bag first
Term
In the side-by-side method what bags should be used?
Definition
Either the 12 ton or 22 ton so long as you are using two of the same sized bags
Term
When members are working in the squatting position, where should their body weight be positioned?
Definition
On the balls of their feet for quick escape
Term
Should members work under a load that is only supported by air bags?
Definition
No
Term
Never inflate bags against... or against objects hotter than...
Definition
sharp objects or objects over 220 degrees F
Term
When stabilizing a vehicle, how many wheels at minimum should be chocked?
Definition
2; one in the front and one in the rear
Term
What is the best way to clean the air bags?
Definition
With soap & water
Term
What can small cuts on the neoprene surface be repaired with?
Definition
Rubber cement
Term
If you are going to leak test an air bag, what should the bag be inflated to?
Definition
30psi
Term
What is the size and maximum lifting capacity of the K-12 (kevlar) air bag?
Definition

7/8" x 15 "x 15"

12 tons @ 118psi 

Term
What is the maximum lifting height of the 12 ton bag?
Definition
8"
Term
The 12 ton bag has a maximum air capacity of what?
Definition
3.0 cubic feet of air
Term
How much does the 12 ton bag weigh and what is the inflation time?
Definition

6lbs

3 seconds 

Term
What is the 12 ton bag tested to?
Definition

test @ 236psi

bust tested @ 700psi 

Term
What is the size of the K-22 (kevlar) air bag?
Definition

7/8" x 20" x 20"

 

Term
What is the maximum lifting capacity of the 22 ton bag?
Definition
21.8 tons @ 118psi
Term
What is the maximum lifting height of the 22 ton bag, and what is its maximum air capacity?
Definition

10"

7.3 cubic feet of air 

Term
How much does the 22 ton bag weigh, and how long does it take to inflate?
Definition

12lbs

7 seconds 

Term
What are 22 ton bags tested to?
Definition

Tested @ 236psi

Bust tested @ 600psi 

Term
What % of fires in sprinklered buildings are extinguished or held in check by the sprinkler system?  
Definition
96%
Term

What size, and how many lines should be hooked up to the fire dept. connection (FDC)?

 

Definition
Two 2 1/2" lines
Term
If no fire is showing, how much pressure should the pump operator deliver to the inlet?
Definition
100psi
Term
How much pressure should the pump operator give if fire is showing, or a number of heads have opened up?
Definition
150psi
Term
What form contains the list of sprinklered buildings in one's district?
Definition
F-316
Term
Where are F-316's filed?
Definition
Behind the F-173's in the company files
Term
A system that is designed to provide simple, inexpensive protection for light hazard occupancies where not over 3 or 4 sprinklers are likely to operate is called what?
Definition
Junior system
Term
What are junior systems connected to?
Definition
Directly to the service water supply through a 1" brass pipe and electric water flow alarm
Term
How much water will a jr. system discharge when compared to a standard 1/2" sprinkler?
Definition
About 1/2 as much
Term
Sprinklers have been in use throughout the USA since what year?
Definition
1874
Term
What is the name of the heat sensitive device in a closed head sprinkler that keeps it closed?
Definition
Fusible link
Term
An activated sprinkler head generally discharges how much water per minute?
Definition
23 gallons per minute (90 liters)
Term
Of all the fire sprinkler systems, which one is most often installed?
Definition
Wet pipe sprinkler systems
Term
What sprinkler system can only be used if the ambient temp may be cold enough to freeze the water in a wet pipe system?
Definition
Dry pipe systems
Term
Since water is not constantly in a dry pipe system, what pressurizes it with a "maintenance" pressure?
Definition
Air
Term
What is the regulatory time requirement from the time a sprinkler opens until water is discharged onto the fire?
Definition
60 seconds maximum
Term

What sprinkler system has sprinklers that are constantly open?

(The heat sensing element is removed) 

Definition
Deluge system
Term
What prevents water supply pressure from forcing water into the piping?
Definition
Deluge valve
Term
A spinkler system that is a hybrid of  wet, dry, and deluge is  known as what?
Definition
Pre-action system
Term
What are the two types of pre-action systems?  
Definition
Single interlock & double interlock
Term
What type of foam does a foam water fire sprinkler system discharge?
Definition
Low expansion foam concentrate
Term
What systems are operationally identical to deluge systems?
Definition
Water spray systems
Term
What are the typical spray patterns of a water spray system?
Definition
Oval, fan, full circle, narrow jet
Term
What are commerical sprinkler systems designed to do?
Definition
Protect the structure and occupants from a fire
Term
What are residential sprinkler systems designed to do?
Definition
Suppress a fire to allow for the occupants' safe escape
Term
What type of construction is the LAFD high rise hose pack?
Definition
Single jacket (nitrile rubber impregnated synthetic yarn as the cord)
Term
How long is a section of this hose,  what is its diameter, and what are the coupling sizes?
Definition

50' section  

2" diameter 

1 1/2" couplings 

Term
Why does the high rise hose pack have couplings with tapered shoulders?
Definition
To reduce snagging on door frames, furniture, and other obstacles.
Term
To help LAFD firefighters ID the hose pack, what color is the hose?
Definition
Blue
Term
This hose is very good at resisting...
Definition
kinks
Term
When this hose is under pressure, it can be bent to within...inches before kinking.
Definition
12"
Term
What is the standard nozzle pressure to the 1 1/2" 200gpm elkhart yellow bumper nozzle?
Definition
75psi
Term
How long is the hose section for the pigtail?
Definition
8'
Term
How many ladder straps does it take to properly secure a hose pack?
Definition
Five 2' ladder straps
Term
When forming the hose pack (U shape), what do you use to give it its shape?
Definition

An SCBA bottle (45 minute)

Training Bulletin states 30 minute, but LAFD does not have it. 

Term
If using the single layer method of assembling the hose pack, how much taller is it than the double layer?
Definition
8" taller
Term
When forming the pack, how far below the gauge of the SCBA bottle should you place the female coupling?
Definition
10"
Term
Once complete, how much will the high rise hose pack weigh?
Definition
38lbs
Term

What are the dimensions of the single layer and double layer packs?

Definition

Single: 40" tall by 22" wide

Double: 32" tall by 16" wide 

Term
How much does the pig tail assembly weigh?  
Definition
10lbs
Term
What was the height limit on buildings built before 1960?
Definition
150' (approx. 13 stories)
Term

Buildings prior to 1960 were only required to have what type of standpipe system?

 

Definition
Dry standpipe (class I) for FD use
Term
Buildings between 1960 and 1974 were required to have what type of stand pipe?
Definition
Combination (Class III) For use of building's occupants and FD
Term
Since 1974, what type of protection system has been required?
Definition

Combined standpipe sprinkler system

 

Term
Class III standpipes (Combined standpipe sprinkler) have orifice plates? What is the function of an orifice plate?
Definition
To restrict the flow of water (does not regulate pressure)
Term
How tall must a building be to have a combined standpipe sprinkler (class III) system?  
Definition
Over 75' in height
Term
Class III standpipes use a pressure reducing valve (PRV) when the pressure at the outlet exceeds...psi
Definition
150psi
Term
Since the hose pack hose is made of synthetic nitrile rubber, does it have to be thoroughly dried after each use?
Definition
No
Term
How do you remove dirt and fire debris from this hose?
Definition
Scrub the outer jacket
Term
What is the service test pressure for this hose?
Definition
300psi
Term
Dry standpipe systems are found in high rise buildings prior to... and are...or more stories in height
Definition

1960

4 or more stories 

Term
What is the diameter range of a dry standpipe riser? (The range depends on the building's height) How much water must each riser flow?
Definition

4" to 6"

500gpm per riser 

Term
How many inlets will a dry standpipe riser have, and what are their size?
Definition

two to four inlets

2 1/2" 

Term
How is the location of a dry standpipe outlet determined?
Definition
Every point within the structure must be reachable by a 30' stream of water from a nozzle attached to 100' of hose
Term
A class II standpipe (wet) is required in buildings 3 or more stories in height and are directly connected to a water supply. What is this supply equipped with?
Definition
1 1/2" outlets with hose and nozzle
Term
If a building was built after 1960 and is over 150' in height, what type of standpipe system must it have?
Definition
Combination standpipe system
Term
What is the diameter of a combination standpipe riser, and what is the required flow rate?
Definition

6" diameter

1,000gpm flow rate per riser 

Term
What are orifice plates calibrated to supply in a combination standpipe outlet?
Definition
200gpm @ 45psi through 100' of 2 1/2" hose with a 1" tip
Term
Pre-set pressures on a pressure regulating device is required to provide...flowing...
Definition

80 to 125psi

300gpm

Term
If a building is over 275' tall what is the minimum amount of water allowed in the on-site water supply tank?
Definition
45,000 gallons
Term
Where will the water supply tanks almost always be located in a high rise building?
Definition
At the bottom of the building
Term
How are a building's fire pumps operated?
Definition
Either by electric motor or diesel engine
Term
If a building is over 275' how many fire pumps must it have, and what type?
Definition

3 pumps total  

one electric

two diesel 

Term
In a dry pipe system, what is the air pressure range prior to the system being charged with water?
Definition
15-50psi
Term
In LAFD's high rise hose pack, when supplied with the standard 75psi nozzle pressure to the 1 1/2" Elkhart (yellow bumper) nozzle, the flow will be 200gpm. What will the friction loss be?
Definition
35psi per 100' of 2" hose
Term
Name the 4 basic types of high rise water systems.
Definition

Dry standpipe (class I) Pre 1960

Wet standpipe (class II)

Combination standpipe (class III) 1960-1974

Combined standpipe/sprinkler (post 1974) 

Term
Wet standpipe systems are required in buildings 3 or more stories in height. In what year did they become required in buildings 4 or more stories in height?
Definition
1983
Term
Name some ways that a wet standpipe system can be supplied with water.
Definition

Domestic water system

Gravity fed or pressurized tanks & domestic water system

Combination standpipe system serving 1 1/2" outlets 

Term
What is the purpose of a dripcock?
Definition
Prevents water from a leaking valve from entering the hose while it's stored in the cabinet
Term
Where are some places that orifice plates may be found?
Definition

Soldered to the outlet

 Behind gasket of dripcock

Soldered to male end of dripcock

 Behind gasket of 2 1/2" hose

Term
How is the size of an orifice plate determined?  
Definition
By the static pressure of the supply side
Term
What are clapper valves?
Definition
They prevent backflow in the domestic system. (Intorduced in Class III systems)
Term
What is the purpose of a jockey pump?
Definition

Makes up for minor loses in the system pressure

Prevents the main pump from continuously starting and stopping

(Installed in some class III systems) 

Term
What is a distinguishing characteristic of a combined standpipe/sprinkler system?  
Definition
The FD outlets and sprinkler system are required to be supplied by a common or combined riser
Term
What is a looped system?
Definition

Found in buildings  built btw. 1983 and 1988

Water for a given sprinkler head is delivered from two or more risers 

Term
According to the Dorothy Mae ordinance, all pre... multi unit residential buildings, 3 or more stories must meet certain specified retroactive fire safety requirements.
Definition
1943
Term
The Dorothy Mae ordinance states that all sprinkler heads are placed no less than... inside a door and no further than...from the door
Definition

No less than 5'

No more than 7' 

Term
Sprinkler heads that are compliant with the Dorothy Mae ordinance must be rated for the lowest possible operating temperature. What is this temperature?
Definition
135 Degrees F
Term
Automatic sprinkler systems have different types of control valves. What are they?
Definition

Post indicating valve (PIV)

Outside stem & yoke (OS&Y)

Gate valves 

Term
What is the function of a control valve?
Definition
To shut down the system completely, or to isolate parts of the system for repairs and/or testing
Term
Where are post indicating valves located?
Definition

Above ground level outside of the building about 40' away

(painted red) 

Term
Where are OS&Y and gate valves found?
Definition
Inside the building, usually near the standpipe or riser
Term
Name the types of sprinkler heads and how to identify them.
Definition

Pendant: sprinkler extends down from piping

Upright: sprinkler sits on top of piping

Sidewall: sprinkler extends from the side

Flush: sprinkler is recessed into the ceiling

Residential: Domestic water supply, fast response heads

Jr. system: sprinkler heads identified by a pintle 

Term
How can one identify the various temperature ratings for each sprinkler head when using the color code?
Definition

Uncolored (bronze): 165 degrees

White: 212 degrees 

Blue: 286 degrees

Red: 360 degrees

Green: 400 degrees

Orange: 500 degrees 

Term
What is the effective discharge range for a sprinkler head?
Definition
16' out and 4' below the head
Term
Name the components of an individual sprinkler head.
Definition

Deflector

Frame

Orifice

Cap

Threads

Inside diameter 

Term
In automatic sprinkler heads, what does the term "loading" or "loaded" mean?
Definition
Accumulation of dirt and slow operation
Term
If a sprinkler system's pressure is known, what formula can be used to determine the GPM?
Definition
GPM = 1/2 pressure + 15 per head
Term
Name the shut off tools that can be used on damaged or activated sprinkler heads.
Definition

Shultz shut off

Petersen wedges

Redwood plug

Globe valve

2 1/2" hose to divert water

Sprinkler wrench 

Term
How much clearance is required from sprinkler heads?
Definition
18"
Term
Access aisles must have a minimum clearance of... to all automatic sprinkler and standpipe control and test valves
Definition
3'
Term
How many spare heads are required for each sprinkler system?
Definition

0-300: 6 spares

301-1000: 12 spares

1000+: 24 spares 

Term
The 2 main systems for identifying HAZMAT are...
Definition
NFPA 704 & United Nations DOT system
Term

Shipping papers in highway transportation are also known as, and located...

 

Definition

Bill of lading

Cab of vehicle 

Term
The table of initial isolation and protective action distances in the ERG are what color border?
Definition
Green
Term
For biological agents the ERG refers to guide number...
Definition
158
Term
The area surrounding a dangerous goods incident which extends far enough to prevent adverse effects to personnel outside the zone is...
Definition

Hot zone & Exclusion zone 

Term
5 categories of terrorist incidents are:
Definition

biological

nuclear

incendiary

chemical

explosive

(BNICE) 

Term
Nerve agents are most similar in nature to...
Definition
Organophosphates
Term
The least penetrating type of radiation is:
Definition
Alpha
Term
Presently, the most common terrorist threat is...
Definition
Explosives
Term
Between Q fever, Ricin, Anthrax, and Sarin, which one is not a biological agent?
Definition
Sarin
Term
1st responders who are at the scene of an explosion damaging a Federal office in a highrise structure should be most concerned with what?
Definition
Secondary explosives
Term
When a large group of people experience the rapid onset of similar symptoms, the potential exists for...
Definition
A chemcial incident
Term
What hazards cause the most physical injury to 1st responders?
Definition
Mechanical exposure
Term
To determine a safe distance from a hazard, 1st responders should refer to the Table of Initial Isolation & Protection Action Distances of the green section in the...
Definition
NAERG (N. American Emergency Response Guidebook)
Term
A pure substance is either an...or a...
Definition
element or compound
Term
"Simple" asphyxiants cause harm by...
Definition
Displacing or diluting oxygen
Term
Which is the least effective example of radiation shielding?
Definition
Fences
Term
What is the 1st responders best initial location at an incident?
Definition
Uphill & upwind
Term
Vesicants are considered to be...
Definition
Blister agents
Term
Awareness level training is exceeded when 1st responders enter the...
Definition
Hot zone
Term
VX, GB, GD, and GA are all...
Definition
Nerve agents
Term
Will a hydrocarbon float or sink in water?
Definition
float
Term
If a hydrocarbon has a specific gravity that is greater than 1, what does this mean?
Definition
That is is toxic
Term
What substance is placarded as a non-flammable gas, even though it is, in fact flammable?
Definition
Ammonia (NH3)
Term
What is the flammable range of gasoline?
Definition
1.7%-8.6%
Term
What is the flammable range for ammonia?
Definition
16%-25%
Term
What product has a flammalbe range of 1%-100%?
Definition
Acetylene (C2H2)
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