-
A three-dimensional fire often involves static flammable liquid. true or false -
false. 3D fires involve flammable liquid in motion as well as both horizontal and vertical surfaces.
-
Class A fire extinguisher
- are ok for wood, paper, some plastics and textiles.
- They offer the coating effects of dry chemicals.
-
Dry chemical stored pressure fire extinguishers
should be removed or replaced at their next 6-year maintenance or hydrostatic test interval.
-
Talking about UL rating, the _____ rating refers to the amount of sq footage an extinguisher covers.
B:C
-
Class B fire extinguishers cannot handle flammable liquid.
False
-
employees must be trained in proper use of all portable fire extinguishers according to
CRF29
-
you need to have portable fire extinguishers VISUALLY inspected.
at least _____ according to 29 CFR 1910.157 (e) (2)
monthly
-
Class A/B fire extinguishers
- should NOT be used for fire that involves live.
- electrical equipment
-
Water or steam fire extinguishers need to be discharged,
disassembled and inspected at least:
annually
-
An extinguisher weighing over 40 lbs. should be installed so the top is.
no more than __ from the ground
3.5 ft
-
OSHA specified maximum travel distance to an extinguisher for Class.
B
50 ft.
-
dry chem extinguishers requiring 12 yr. hydrostatic test must be.
emptied for maintenance procedures every.
6 yrs.
-
A rated UL extinguishers = how many gallons of water?
1.25
-
Class ____ fire extinguishers use electrically nonconductive extinguishing.
agents
C
-
Cartridge operated water based portable extinguishers need.
hydrostatic testing
Every 5 years
-
stored pressure type extinguishers need INTERNAL examination:
never
-
extinguishers weighing 40 lbs. or less must be.
installed so top of canister is no more than _____
5 ft above the ground
-
class ___ extinguishers are for fires involving cooking media.
K
-
OSHA specified max travel distance for Class A is ______
75 ft
-
proper UL rating to use on electrically energized equipped.
C
-
work on the principle of saponification
Class K
-
involve flammable liquid on a horizontal surface w/ the
presence of a solid object creating a barrier
Obstacle Type Fires
-
extinguishers must be installed at least _____ from the ground.
4 inches
-
may take place in flammable liquid storage cabinets,
dip tank process areas, etc.
Obstacle Type Fires
-
To make sure the pressure gauges of CO2 extinguisher
are showing adequate pressure, what must you do?
Must Be Weighed
-
Wetting agent portable extinguishers must be hydrostatic tested every.
_____
5 yrs.
-
leak tests on stored pressure extinguishers must be.
performed
After recharge
-
how do u convert fire extinguishers from 1 type to another?
cannot
-
may be reused.
only if checked for proper type, contamination, and condition. closed recovery system.
needs to be used!
any remaining dry chemical in a discharged extinguisher
-
New extinguishers needing charge in the field.
- do not need to have any.
- verification of service collar installed.
-
how do u have an extinguisher converted to use a different type
of extinguishing agent
you cannot
-
the gauge used to set the regulated source of pressure needs to
be calibrated.
annually
-
pump tank calcium chloride-based antifreeze types of extinguishers
need to be recharged.
annually
-
OSHA specified max distance to extinguisher for Class D
75 ft.
-
when you recharge, the amount of recharge agent to use should.
be verified by
weighing
-
these types of extinguishers must
have hydrostatic testing every 5 yrs.
Aqueous Film Forming Foam (AFFF)
-
The wetting agent in stored pressure wetting agent extinguishers.
must be replaced.
annually
-
The premixed agent in liquid charge-type AFFF and FFFP
extinguishers must be replaced every.
3 yrs.
-
cylinder-operated extinguishers
- do not need to have any verification of
- service collar installed.
-
False - ANSWER-you are free to Mix multipurpose dry chemicals w/ alkaline based dry.
chemicals
False
-
subsurface injection of wet chemical extinguishing agents
into hot cooking media
must be avoided.
-
You should NEVER place extinguishers in cabinets or wall recesses.
False
-
how often must CO2 portable extinguishers go through hydrostatic testing?
5 yrs.
-
Pressurized gas fires and pressurized flammable liquids.
Special Hazards
-
Type ___ extinguishers w/ agents other than dry
chemicals are not very effective on ______
Type B, Special Hazards
-
How do you filed adjust regulators that are utilized on
wheeled fire extinguishers?
Do not attempt.
-
You do not need to keep permanent file record for each extinguisher.
unless it has been in use for over 1 1/2 yrs.
False
-
Permanant File Record
- needed for each extinguisher including:
- maintenance date, name, and agency performing maintenance.
-
Dry Nitrogen
used as an expellant gas for stored-pressure fire extinguishers.
-
connecting the fire extinguisher to the high pressure
source for direct charging
is not recommended
-
the problem with halon agent is that it leaves a lot of residues after use.
False
-
the structural integrity of aluminum shells
may be weakened when under fire exposure.
-
The system used to rate effectiveness of extinguishers on Class B
fires are applicable to pressurized flammable liquid.
False
-
Potassium base bicarbonate agents offer _____ capabilities when compared to sodium bicarbonate agents.
greater - ANSWER-Potassium base bicarbonate agents offer _____ capabilities when compared to sodium bicarbonate agents.
-
there are several types of dry chemical agents. the problem w/
potassium chloride-based agent is that it is:
Corrosive
-
of all dry chemical agents, only
______ are suitable for Class A protection.
Ammonium phosphate
-
water type extinguishers are primarily for handling __________
fires.
Class A
-
Backpack pump extinguishers should be avoided because they do
not have a designated rating.
False
-
water mist extinguishers can only use________
Distilled Water
-
For safety, portable extinguishers should NOT be installed in a
location accessible to the hazard.
False
-
all nonchargeable extinguishers come w/
maximum useful life cycles of no more than______
date printed on the nameplate.
-
carbon dioxide extinguishers can be dangerous in
unventilated locations
-
Extinguishers should be CO2 or halogenated agent types when.
computer equipment is in the location of fire.
True
-
what type of fires can Halotron fight?
A, B, C
-
suitable replacement for Halon 1211 because it is less.
toxic and has 0 ozone depletion potential.
Clean guard FE 36
-
the pressure in a hydrostatic test of a cylinder shall maintained for a
minimum of ____ sec.
30
-
dry chemical and dry powder
on certain _ (cartridge operated)
-
dry chemical and halogenated extinguishers
- require 6 & 12 yr. hydrostatic.
- testing
-
water, afff, fffp, CO2 extinguishers
- require 5 yr. maintenance and hydrostatic.
- testing
-
-
class b rating
2" depth heptane fires in square pans
-
pressure gauges used on test equipment.
calibrated semiannually.
-
if cylinder has welding, broken threads, nicks or corrosion.
Condemn
-
master gauges
calibrated annually
-
drying equipment
shall not exceed 150F.
-
DOT 3E cartridges or TC 3EM cartridges
exempt from periodic hydrostatic testing.
-
hydrostatic test of cylinder shall be maintained for
30 seconds
-
test pressure for hose assemblies
maintained for min of 1 min.
-
when not specified, shall be tested to factory test
pressure, not exceeding 3x's service pressure
low pressure cylinder
-
cartridge operated extinguishers
tested at original factory test pressure.
-
DOT3A 3AA 3AL cylinders tested @ 5/3 service.
pressure
High Pressure Cylinders
-
tested at 3000 psi.
CO2 extinguishers w/ ICC3 specs
-
CO2 hose assemblies
tested at 1250psi.
-
Dry Chem, Powder, water, foam, halogen hose assemblies
- 300psi or
- service pressure (whichever is higher)
-
low pressure accessory hose on wheeled extinguishers
tested at 300psi
-
high pressure hose on wheeled extinguishers
tested at 3000psi.
-
hose assemblies that pass hydrostatic testing
- shall not require recording.
- labeling or marking
-
property owner
assumes role of authority having jurisdiction
-
class a hazards
travel distance is from any point to extinguisher.
-
class B, D, K hazards
travel distance is from hazard to extinguisher.
-
HMIS
Hazardous Material Identification System
-
minimum discharge duration for extinguisher rated at 2A or
higher
13 seconds
-
water type, halogenated, multipurpose dry.
chemical, wet chemical
Class A Hazard extinguishers
-
Class B hazard extinguishers
- AFFF, FFFP, CO2, Dry Chemical,
- Halogenated
-
class a hazard installation minimum # of extinguishers -
- divide total floor area.
- by maximum area to be protected per extinguisher
-
smaller extinguishers rated class b or c
- shall not be used if they don't meet.
- minimum 1-A rating
-
up to 2 water type extinguishers with 1-A rating can be used.
to fulfill rating of 1 2-A extinguisher
True or False
-
2 2 1/2 shall be permitted to fulfill requirement of 1 4-A rated.
extinguisher
True or False
-
light hazard class A
2-A, 3000ft, 11250ft
-
calcium chloride ok for use in stainless steel extinguishers
True or False
-
carbon dioxide hose assembly
- must pass annual CONDUCTIVITY test with
- label attached by heatless process with month/yr. and initials, agency.
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