Fire Extinguishing Agents Portable Fire
Extinguishers ACTUAL QUESTIONS AND
CORRECT ANSWERS
Introduction - Correct answers✔✔• Portable fire extinguishers are
required in a variety of occupancies.
• Vary in size and type of agent used
• Designed for different purposes
Purposes of Fire Extinguishers - Correct answers✔✔• Extinguish incipient fires
• Control fires where traditional methods
are not recommended
• Available for immediate use on
small, incipient fires
Extinguishing Incipient Stage Fires - Correct answers✔✔• One advantage of fire extinguishers is
their portability.
- Most fire department vehicles carry at least one fire extinguisher.
• The primary disadvantage of fire extinguishers is that they are "one-shot" devices.
- If the device does not control the fire, some other device or method is needed.
Extinguishing Fires with the Appropriate Extinguishing Agent pt.1 - Correct answers✔✔• Fire
extinguishers are also used to control fires where traditional extinguishing methods are not
recommended.
- Using water on fires that involve energized electrical equipment increases the risk of
electrocution to fire fighters.
, - Appropriate extinguishing agents are also required for fires that involve flammable liquids,
cooking oils, and combustible metals.
Extinguishing Fires with the Appropriate Extinguishing Agent pt.2 - Correct answers✔✔• As a
fire fighter, you must know: Which fires require special agents, What type should be used, How
to operate the different types
Methods of Fire Extinguishment - Correct answers✔✔• Extinguishers stop burning by: Cooling
the fuel, Cutting off the supply of oxygen, Interrupting the chain reactions, Saponification
Classes of Fires - Correct answers✔✔• Essential to match extinguisher and fire
- Some agents are more efficient on certain fires. Some agents will not control certain fires.
Some agents are dangerous when applied to certain fires.
• Before selecting a fire extinguisher, ask
yourself, "Which class of fire am I fighting?"
Class A Fires - Correct answers✔✔• Involve ordinary combustibles and
natural vegetation.
• Textiles, papers, plastics, rubber, wood
• Water is the most common extinguishing agent.
Class B Fires - Correct answers✔✔• Involve flammable or combustible liquids and flammable
gases
• Alcohol, gas, oil, LPG
• Several different types of extinguishing agents are approved.
Carbon Dioxide
Dry chemical
Extinguishers ACTUAL QUESTIONS AND
CORRECT ANSWERS
Introduction - Correct answers✔✔• Portable fire extinguishers are
required in a variety of occupancies.
• Vary in size and type of agent used
• Designed for different purposes
Purposes of Fire Extinguishers - Correct answers✔✔• Extinguish incipient fires
• Control fires where traditional methods
are not recommended
• Available for immediate use on
small, incipient fires
Extinguishing Incipient Stage Fires - Correct answers✔✔• One advantage of fire extinguishers is
their portability.
- Most fire department vehicles carry at least one fire extinguisher.
• The primary disadvantage of fire extinguishers is that they are "one-shot" devices.
- If the device does not control the fire, some other device or method is needed.
Extinguishing Fires with the Appropriate Extinguishing Agent pt.1 - Correct answers✔✔• Fire
extinguishers are also used to control fires where traditional extinguishing methods are not
recommended.
- Using water on fires that involve energized electrical equipment increases the risk of
electrocution to fire fighters.
, - Appropriate extinguishing agents are also required for fires that involve flammable liquids,
cooking oils, and combustible metals.
Extinguishing Fires with the Appropriate Extinguishing Agent pt.2 - Correct answers✔✔• As a
fire fighter, you must know: Which fires require special agents, What type should be used, How
to operate the different types
Methods of Fire Extinguishment - Correct answers✔✔• Extinguishers stop burning by: Cooling
the fuel, Cutting off the supply of oxygen, Interrupting the chain reactions, Saponification
Classes of Fires - Correct answers✔✔• Essential to match extinguisher and fire
- Some agents are more efficient on certain fires. Some agents will not control certain fires.
Some agents are dangerous when applied to certain fires.
• Before selecting a fire extinguisher, ask
yourself, "Which class of fire am I fighting?"
Class A Fires - Correct answers✔✔• Involve ordinary combustibles and
natural vegetation.
• Textiles, papers, plastics, rubber, wood
• Water is the most common extinguishing agent.
Class B Fires - Correct answers✔✔• Involve flammable or combustible liquids and flammable
gases
• Alcohol, gas, oil, LPG
• Several different types of extinguishing agents are approved.
Carbon Dioxide
Dry chemical
