Firefighter 1 & 2 Study Guide (questions 201-
300) questions and 100% verified correct
answers
What NFPA standard is titled Emergency Services Incident Command System? -
Correct Answer NFPA 1561
What type of command structure brings representatives of different agencies together to
work on one plan and ensures all actions are fully coordinated? - Correct Answer
Unified command
Who in the incident command structure is responsible for determining the strategic
incident objectives? - Correct Answer Incident commander
What level of supervision can an IC establish in charge of a number of divisions or
groups? - Correct Answer Branch director
The three basic ingredients required to create a fire include fuel and oxygen. What is
the third? - Correct Answer Heat
What state must a fuel be in for combustion to take place? - Correct Answer Vapor only
As electricity flows through a wire, what relationship if any, is there between the
resistance in the wire and any heat produced by the current? - Correct Answer The
greater the resistance, the more heat is produced
What is one of the toxic gases often present in smoke? - Correct Answer Hydrogen
cyanide
What is the term for the transfer of heat in a material directly from one molecule to
another? - Correct Answer Conduction
What is the transfer of heat energy in the form of invisible waves called? - Correct
Answer Radiation
What is the term for the lowest temperature at which a liquid produces a flammable
vapor? - Correct Answer Flash point
What is the vapor density of air? - Correct Answer 1.0
How are flammability limits and explosive limits related? - Correct Answer They are
interchangeable terms meaning the same thing
, What class of fire involves ordinary combustibles such as wood and paper? - Correct
Answer Class A
What is the method of choice for extinguishing most class B fires? - Correct Answer
Excluding the oxygen
What new class of fire involves combustible cooking media, such as oils and grease? -
Correct Answer Class K
What is the normal percentage of oxygen in the air? - Correct Answer 21%
What danger is suggested by the observation of smoke puffing in and out of a
structure? - Correct Answer The presence of backdraft conditions
What is one warning signal of possible backdraft conditions? - Correct Answer Class
that is smoke-stained and blackened duet o heavy carbon deposits from the smoke
Whites the fire phase called when the fire has consumed either the available fuel or
oxygen and is tarting to die down? - Correct Answer Decay phase
What is another term for fire point? - Correct Answer Flame point
What is the four-sided geometric figure used to represent the four necessary elements
required for a self-sustaining fire? - Correct Answer The fire tetrahedron
As a solid fuel heats up, it decomposes and releases individual molecules into the
atmosphere. What is this process called? - Correct Answer Pyrolysis
What is the term for a chemical reaction that produces heat? - Correct Answer
Exothermic
What type of oxidation is combustion? - Correct Answer Rapid
What type of heat transfer is it when one end of a steel beam is exposed to heat and the
other end begins to heat up? - Correct Answer Conduction
In what direction does radiated heat energy from a fire travel? - Correct Answer In all
directions
Down to what temperature, can gasoline still give off flammable vapors? - Correct
Answer -45 degrees F
At this temperature, a fuel-air mixture will ignite spontaneously - Correct Answer The
ignition temperature
300) questions and 100% verified correct
answers
What NFPA standard is titled Emergency Services Incident Command System? -
Correct Answer NFPA 1561
What type of command structure brings representatives of different agencies together to
work on one plan and ensures all actions are fully coordinated? - Correct Answer
Unified command
Who in the incident command structure is responsible for determining the strategic
incident objectives? - Correct Answer Incident commander
What level of supervision can an IC establish in charge of a number of divisions or
groups? - Correct Answer Branch director
The three basic ingredients required to create a fire include fuel and oxygen. What is
the third? - Correct Answer Heat
What state must a fuel be in for combustion to take place? - Correct Answer Vapor only
As electricity flows through a wire, what relationship if any, is there between the
resistance in the wire and any heat produced by the current? - Correct Answer The
greater the resistance, the more heat is produced
What is one of the toxic gases often present in smoke? - Correct Answer Hydrogen
cyanide
What is the term for the transfer of heat in a material directly from one molecule to
another? - Correct Answer Conduction
What is the transfer of heat energy in the form of invisible waves called? - Correct
Answer Radiation
What is the term for the lowest temperature at which a liquid produces a flammable
vapor? - Correct Answer Flash point
What is the vapor density of air? - Correct Answer 1.0
How are flammability limits and explosive limits related? - Correct Answer They are
interchangeable terms meaning the same thing
, What class of fire involves ordinary combustibles such as wood and paper? - Correct
Answer Class A
What is the method of choice for extinguishing most class B fires? - Correct Answer
Excluding the oxygen
What new class of fire involves combustible cooking media, such as oils and grease? -
Correct Answer Class K
What is the normal percentage of oxygen in the air? - Correct Answer 21%
What danger is suggested by the observation of smoke puffing in and out of a
structure? - Correct Answer The presence of backdraft conditions
What is one warning signal of possible backdraft conditions? - Correct Answer Class
that is smoke-stained and blackened duet o heavy carbon deposits from the smoke
Whites the fire phase called when the fire has consumed either the available fuel or
oxygen and is tarting to die down? - Correct Answer Decay phase
What is another term for fire point? - Correct Answer Flame point
What is the four-sided geometric figure used to represent the four necessary elements
required for a self-sustaining fire? - Correct Answer The fire tetrahedron
As a solid fuel heats up, it decomposes and releases individual molecules into the
atmosphere. What is this process called? - Correct Answer Pyrolysis
What is the term for a chemical reaction that produces heat? - Correct Answer
Exothermic
What type of oxidation is combustion? - Correct Answer Rapid
What type of heat transfer is it when one end of a steel beam is exposed to heat and the
other end begins to heat up? - Correct Answer Conduction
In what direction does radiated heat energy from a fire travel? - Correct Answer In all
directions
Down to what temperature, can gasoline still give off flammable vapors? - Correct
Answer -45 degrees F
At this temperature, a fuel-air mixture will ignite spontaneously - Correct Answer The
ignition temperature
