MOD A FIREFIGHTER LATEST 2026 CORE EXAM MANUAL
QUESTIONS AND SOLUTIONS GUARANTEE A+
✔✔In a ventilation-limited fire, the heat and growth is limited by the: - ✔✔amount of
oxygen available to the fire.
✔✔Which stage of fire development occurs when the fire is small and confined to the
fuel first ignited? - ✔✔Incipient
✔✔The tendency of gases to form into layers according to temperature, gas density,
and pressure is thermal: - ✔✔Layering
✔✔The interface between the hot gas layer and cooler layer of air in a compartment fire
is known as the: - ✔✔neutral plane
✔✔The fully developed stage occurs when the heat release rate of the fire has: -
✔✔reached its peak.
✔✔How can wind affect fire development in a structure fire? - ✔✔It can create pressure
differences that cause windows to fail and provide oxygen to the fire.
✔✔Which statement about a compartment fire is true? - ✔✔Given enough available
fuel, fire will follow oxygen through a building along any available flow path.
✔✔Which statement relating to buildings under construction, renovation, or demolition is
true? - ✔✔Inoperative standpipes and sprinkler systems have become a contributing
factor in fires in buildings under demolition.
✔✔When wearing a helmet, the wearer should: - ✔✔wear a form of primary eye
protection in addition to the face shield.
✔✔Which SCBA component reduces the high pressure of the cylinder and controls air
flow to the wearer? - ✔✔Regulator assembly
✔✔Which SCBA limitation would likely be positively affected by training with the
assigned SCBA units? - ✔✔Psychological limitations such as claustrophobia
✔✔What should you do if you notice that your SCBA needs to be repaired? -
✔✔Immediately report the necessary repairs
✔✔What should be done during weekly inspections of SCBA? - ✔✔Check the regulator
for damage
, ✔✔When wearing SCBA in an IDLH atmosphere, you must: - ✔✔check your air supply
status frequently.
✔✔What would signal the need to make an emergency withdrawal? - ✔✔SCBA failure.
✔✔When entering an IDLH atmosphere, it is important to: - ✔✔be aware of alternate
means of egress in case the entry route is blocked.
✔✔How are portable fire extinguishers classified? - ✔✔According to the type of fire they
are designed to extinguish
✔✔A fire involving _____ would be considered a Class A fire. - ✔✔rubber
✔✔If a small diesel fuel spill catches on fire, the most effective extinguishing agent
would be: - ✔✔carbon dioxide (CO2).
✔✔Which type of extinguisher is designed for a fire involving magnesium? - ✔✔Dry
powder
✔✔What statement about Class D extinguisher ratings is accurate? - ✔✔Instead of a
numerical rating, Class D extinguishers include application instructions on the faceplate
of the extinguisher.
✔✔Class K fires are extinguished using portable fire extinguishers or _____ systems. -
✔✔Wet chemical
✔✔Clean agent extinguishers: - ✔✔are nonconductive and can extinguish energized
electrical equipment fires.
✔✔What is the final step in the PASS application method? - ✔✔Sweep the nozzle back
and forth.
✔✔When inspecting braid-on-braid rope, what action should be taken if the sheath
slides on the core? - ✔✔Cut the end of the rope, pull off the excess material, and then
seal the end.
✔✔When storing rope, firefighters should: - ✔✔store rope in an unheated area with
freely circulating air currents.
✔✔The best method for storing rope is to place it into a nylon or canvas storage bag
because: - ✔✔it can be deployed quickly.
QUESTIONS AND SOLUTIONS GUARANTEE A+
✔✔In a ventilation-limited fire, the heat and growth is limited by the: - ✔✔amount of
oxygen available to the fire.
✔✔Which stage of fire development occurs when the fire is small and confined to the
fuel first ignited? - ✔✔Incipient
✔✔The tendency of gases to form into layers according to temperature, gas density,
and pressure is thermal: - ✔✔Layering
✔✔The interface between the hot gas layer and cooler layer of air in a compartment fire
is known as the: - ✔✔neutral plane
✔✔The fully developed stage occurs when the heat release rate of the fire has: -
✔✔reached its peak.
✔✔How can wind affect fire development in a structure fire? - ✔✔It can create pressure
differences that cause windows to fail and provide oxygen to the fire.
✔✔Which statement about a compartment fire is true? - ✔✔Given enough available
fuel, fire will follow oxygen through a building along any available flow path.
✔✔Which statement relating to buildings under construction, renovation, or demolition is
true? - ✔✔Inoperative standpipes and sprinkler systems have become a contributing
factor in fires in buildings under demolition.
✔✔When wearing a helmet, the wearer should: - ✔✔wear a form of primary eye
protection in addition to the face shield.
✔✔Which SCBA component reduces the high pressure of the cylinder and controls air
flow to the wearer? - ✔✔Regulator assembly
✔✔Which SCBA limitation would likely be positively affected by training with the
assigned SCBA units? - ✔✔Psychological limitations such as claustrophobia
✔✔What should you do if you notice that your SCBA needs to be repaired? -
✔✔Immediately report the necessary repairs
✔✔What should be done during weekly inspections of SCBA? - ✔✔Check the regulator
for damage
, ✔✔When wearing SCBA in an IDLH atmosphere, you must: - ✔✔check your air supply
status frequently.
✔✔What would signal the need to make an emergency withdrawal? - ✔✔SCBA failure.
✔✔When entering an IDLH atmosphere, it is important to: - ✔✔be aware of alternate
means of egress in case the entry route is blocked.
✔✔How are portable fire extinguishers classified? - ✔✔According to the type of fire they
are designed to extinguish
✔✔A fire involving _____ would be considered a Class A fire. - ✔✔rubber
✔✔If a small diesel fuel spill catches on fire, the most effective extinguishing agent
would be: - ✔✔carbon dioxide (CO2).
✔✔Which type of extinguisher is designed for a fire involving magnesium? - ✔✔Dry
powder
✔✔What statement about Class D extinguisher ratings is accurate? - ✔✔Instead of a
numerical rating, Class D extinguishers include application instructions on the faceplate
of the extinguisher.
✔✔Class K fires are extinguished using portable fire extinguishers or _____ systems. -
✔✔Wet chemical
✔✔Clean agent extinguishers: - ✔✔are nonconductive and can extinguish energized
electrical equipment fires.
✔✔What is the final step in the PASS application method? - ✔✔Sweep the nozzle back
and forth.
✔✔When inspecting braid-on-braid rope, what action should be taken if the sheath
slides on the core? - ✔✔Cut the end of the rope, pull off the excess material, and then
seal the end.
✔✔When storing rope, firefighters should: - ✔✔store rope in an unheated area with
freely circulating air currents.
✔✔The best method for storing rope is to place it into a nylon or canvas storage bag
because: - ✔✔it can be deployed quickly.
