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NFPA 10 Portable Fire Extinguishers
Questions and Answers Rated A+
The certication of service personal shall be required after ________ ✔✔August 17,
NFPA 10 Liquefied Petroleum Gas Code. True or False? ✔✔True
NFPA 407 Standard for Aircraft Fuel Servicing 2007 Edition / True or False ✔✔True
ANSI / Definition ✔✔American National Standards Institute
Carbon Dioxide / Definition ✔✔A Colorless, Odorless, Electrically non- conductive inert gas that is a suitable medium for extinguishing class B &C Fires
Dry Chemical / Definition ✔✔A powder composed of very small particles, usually sodium bicarbonate-, potassium bicarbonate
What is the Definition of Wet Chemical? ✔✔Normally an aqueous solution of organic or inorganic salt.
What are the two Extinguisher Chemicals ✔✔Wet and Dry
What are the two Closed Recovery System ✔✔Dry and Halogenated
A System that is constructed in a manner that does not introduce foreign material into the agent being recovered and has a means of visually inspecting the recovered agent for contaminants. ✔✔Dry Chemical Closed Recovery System
A system that provides for the transfer of halogenated agents between fire extinguishers, supply containers, and recharge and recovery containers so that none of the halogenated agent escapes to the atmosphere ✔✔Halogenated Closed Recovery System
What are the two types of Cylinders ✔✔High & Low Pressure Cylinders
Cylinders or Cartridges containing nitrogen, compress air, carbon dioxide, or other gases at a presser higher than 500 psi at 70 Degrees ✔✔High-Pressure Cylinder
CO2 extinguishers are effective in extinguishing Class ___ and Class___ fires ✔✔B;C
A Sodium Bicarbonate extinguisher is a ____ type of fire extinguisher ✔✔Dry Chemical
Class ___ agents cannot be given multi-purpose rating for use on other classes. ✔✔D
Dry powder agents are for Class ____ fires only ✔✔D
NFPA ___, Standard for portable fire extinguishers, provides information on rating, placement, and use of portable extinguishers ✔✔ 10
The mixing of ____ and water results in a vapor seal by creating a film foam on the surface of the water. The vapor seal extinguishes the flame and prevents reignition ✔✔AFFF
AFFF extinguishers do not work well for fires in Class ____ or Class___ fuels ✔✔C;D
Which extinguishers are most commonly used for highly sensitive computer equipment Halon ; ✔✔Carbon Dioxide
The United States unilaterally decided to stop producing halogen extinguishers at the end of ____ ✔✔ 1993
If an extinguisher is found to be deficient in weight by ___% it should be removed from service and replaced ✔✔10%
What is a Extinguisher Inspection? ✔✔A quick check that a fire extinguisher is in its designated place, that its has not been actuated or tamper with, that there is no obvious physical damage or condition to prevent it operation.
Define Extinguisher Maintenance ✔✔A thorough examination of the fire extinguisher. It includes a thorough examination for physical damage or condition to prevent its operation and any necessary repair or replacement. It will normally reveal if hydrostatic testing or internal maintenance is required.
What is AFFF? ✔✔Aqueous Forming Foam Agent
What is FFFP? ✔✔Film-Forming Fluoroprotein Foam
What class of fires are dry powder extinguishers rated for? ✔✔Class D only
How do carbon dioxide extinguishers work? ✔✔By displacing oxygen
How is the effectiveness of a class D extinguisher expressed? ✔✔There is no numerical rating of a class D system
How to perform the bank down application method ✔✔Apply foam off a solid surface to deflect down onto the fire
A yellow star symbolizes what class of fire extinguisher? ✔✔Class D
Expansion rate of High Expansion foam ✔✔1000:
Oxygen exclusion is called.... ✔✔Smothering
What agent is most effective on class B fires? ✔✔Foam
How often should extinguishers be serviced? ✔✔Annually or after each use
When should an extinguisher be removed from service? ✔✔if it is 10% weight deficient
What is the numerical range of rating for class A extinguishers? ✔✔1A to 40A
What classes of extinguishers use numerical ratings? ✔✔Class A and B only
Multipurpose rated extinguishers are used for what class fires? ✔✔Class A, B, & C
What label types do NFPA require on extinguishers? ✔✔Pictographs
Expansion rate of Medium Expansion foam ✔✔200:
If halon extinguishers weigh less than 9lbs, what class of fire is it used for? ✔✔Class B & C
Foam that reduces the surface tension of water is good for what class of fire? ✔✔Class A
When an extinguisher empties during use, what should be done ✔✔Withdraw & recharged
How much of a liquid does an extinguisher of 1A contain? ✔✔1 1/4 gallons of water
What causes a bright white flame? ✔✔Magnesium fire
By what criteria are extinguishers classified? ✔✔Performance capability & type of fire they are used for
