ALL FIREFIGHTER ONE PRACTICE REVIEW
TEST PAPER 2026 FULL SOLUTIONS
GRADED A+
⩥ Firefighters working in the exhaust portion of the flow path will:
Answer: feel the increase in temperature as the velocity and/or
turbulence increases.
⩥ What provides the best indicators of structural integrity?
Answer: Information gathered at the scene
⩥ In a compartment fire, the interface between the hot gas layers and the
cooler layer of air is commonly referred to as the:
Answer: neutral plane
⩥ What is the likely result if additional air is allowed into an already-
ventilated compartment fire?
Answer: Higher peak release rate
⩥ Fire spreading from a wall to a nearby couch due to radiant heat
transfer is an example of:
Answer: heat reflectivity
,⩥ Fire develops through four stages: incipient, growth, ___, and decay.
Answer: Fully-developed
⩥ When a structural member such as a window, roof, or doorway fails,
introducing a new source of oxygen to a fire, ___ ventilation has
occurred.
Answer: unplanned
⩥ Sawdust ignites more easily than a long because the sawdust has a
higher:
Answer: surface-to-mass ratio
⩥ A collapsed storage shed that is fully involved in flames would be an
example of a:
Answer: fully-developed fuel-limited fire
⩥ heat that is radiated to the insulating air layer between PPE and your
body:
Answer: can cause heat stress and failure of the PPE
⩥ What will establish new flow pass between the fire compartment and
exterior vents of the building?
Answer: Firefighters advancing a hose line through an open door or
ventilating windows to make entry into a building
,⩥ When a substance changes from one type of matter into another, such
as two or more substances combining to form compounds, the substance
undergoes a:
Answer: chemical reaction
⩥ Gaseous fuels can be the most dangerous of all fuel types because
they:
Answer: are already in the physical state required for ignition
⩥ What occurs when a mixture of unburned fuel gases and oxygen come
in contact with an ignition source?
Answer: smoke explosion
⩥ Which heat transfer mechanism is dependent on several factors
including the turbulence and velocity of moving gases?
Answer: convection
⩥ In a compartment fire, smoke flashover indicators include rapidly
increasing volume, turbulence, optical density, and:
Answer: darkening color
⩥ the flow path of a structure fire is comprised of two regions: the
ambient air flow in and the:
, Answer: hot exhaust flow out
⩥ The ___ stage of fire development occurs when the heat release rate of
the fire has reached its peak.
Answer: fully developed
⩥ What may occur if water is added to a burning liquid that is less dense
than water?
Answer: The water may disperse the burning liquid instead of
extinguishing it
⩥ To ensure that the decay stage of a ventilation-limited fire is the fire's
final stage, firefighters must provide a controlled transmission of a fire
in the decay stage from ventilation-limited to fuel-limited, by:
Answer: restricting ventilation until the heat transfers out of the
compartment
⩥ What may occur in an oxidation reaction when the heat generated
exceeds the heat being lost?
Answer: spontaneous ignition
⩥ Which type of electrical heating occurs when the current flowing
through a conductor exceeds its design limits?
Answer: overcurrent or overload
TEST PAPER 2026 FULL SOLUTIONS
GRADED A+
⩥ Firefighters working in the exhaust portion of the flow path will:
Answer: feel the increase in temperature as the velocity and/or
turbulence increases.
⩥ What provides the best indicators of structural integrity?
Answer: Information gathered at the scene
⩥ In a compartment fire, the interface between the hot gas layers and the
cooler layer of air is commonly referred to as the:
Answer: neutral plane
⩥ What is the likely result if additional air is allowed into an already-
ventilated compartment fire?
Answer: Higher peak release rate
⩥ Fire spreading from a wall to a nearby couch due to radiant heat
transfer is an example of:
Answer: heat reflectivity
,⩥ Fire develops through four stages: incipient, growth, ___, and decay.
Answer: Fully-developed
⩥ When a structural member such as a window, roof, or doorway fails,
introducing a new source of oxygen to a fire, ___ ventilation has
occurred.
Answer: unplanned
⩥ Sawdust ignites more easily than a long because the sawdust has a
higher:
Answer: surface-to-mass ratio
⩥ A collapsed storage shed that is fully involved in flames would be an
example of a:
Answer: fully-developed fuel-limited fire
⩥ heat that is radiated to the insulating air layer between PPE and your
body:
Answer: can cause heat stress and failure of the PPE
⩥ What will establish new flow pass between the fire compartment and
exterior vents of the building?
Answer: Firefighters advancing a hose line through an open door or
ventilating windows to make entry into a building
,⩥ When a substance changes from one type of matter into another, such
as two or more substances combining to form compounds, the substance
undergoes a:
Answer: chemical reaction
⩥ Gaseous fuels can be the most dangerous of all fuel types because
they:
Answer: are already in the physical state required for ignition
⩥ What occurs when a mixture of unburned fuel gases and oxygen come
in contact with an ignition source?
Answer: smoke explosion
⩥ Which heat transfer mechanism is dependent on several factors
including the turbulence and velocity of moving gases?
Answer: convection
⩥ In a compartment fire, smoke flashover indicators include rapidly
increasing volume, turbulence, optical density, and:
Answer: darkening color
⩥ the flow path of a structure fire is comprised of two regions: the
ambient air flow in and the:
, Answer: hot exhaust flow out
⩥ The ___ stage of fire development occurs when the heat release rate of
the fire has reached its peak.
Answer: fully developed
⩥ What may occur if water is added to a burning liquid that is less dense
than water?
Answer: The water may disperse the burning liquid instead of
extinguishing it
⩥ To ensure that the decay stage of a ventilation-limited fire is the fire's
final stage, firefighters must provide a controlled transmission of a fire
in the decay stage from ventilation-limited to fuel-limited, by:
Answer: restricting ventilation until the heat transfers out of the
compartment
⩥ What may occur in an oxidation reaction when the heat generated
exceeds the heat being lost?
Answer: spontaneous ignition
⩥ Which type of electrical heating occurs when the current flowing
through a conductor exceeds its design limits?
Answer: overcurrent or overload
