USCG FIRE FIGHTING CORE MAIN EXAMINATION
SET QUESTIONS AND ANSWERS SURE A+
✔✔search priorities - ✔✔immediate first area/rest of fire deck, deck directly above fire,
top deck, decks below fire
✔✔primary search - ✔✔a quick attempt to locate any potential victims who are in
danger
✔✔secondary attempt - ✔✔thorough search conducted after the situation is under
control
✔✔search patterns - ✔✔clockwise search (left-handed), counterclockwise search (right-
handed)
✔✔Fusible link - ✔✔used in fixed fire suppression systems, activated in the presence of
heat
✔✔Types of Ventilation - ✔✔hydraulic, mechanical, natural
✔✔hydraulic ventilation - ✔✔directing a fog stream of water out a window to increase air
and smoke movement
, ✔✔mechanical ventilation - ✔✔using a machine/fan to direct out smoke
✔✔natural ventilation - ✔✔supplying fresh air by opening up windows to a location and
moving foul air away from the location
✔✔Turn-Out Gear - ✔✔turnout coat & bunker pants, boots, helmet with face shield,
flash hood, respiratory protection
✔✔Limitations of Gear - ✔✔60 lbs causing fatigue, elevated body temps
✔✔Glove types - ✔✔gauntlet (normal glove style), wristlet (small sleeve attached to the
wrist)
✔✔ fire triangle - ✔✔fuel, oxygen, heat (removal of one extinguishes fire)
✔✔fire tetrahedron - ✔✔Heat, Fuel, Oxygen, Chemical Chain Reaction
✔✔explosive limits - ✔✔% of gas mixed with air above/below where ignition will NOT
take place: lower = mix is too lean to burn, upper = mix is too rich to burn
✔✔thermal layering - ✔✔gases forming in layers according to temperature
✔✔solids - ✔✔definite rigid shape and volume, motion is restricted to vibrations
✔✔liquids - ✔✔definite volume, indefinite shape, less dense than solid but denser than
gases
✔✔gases - ✔✔no definite shape or volume, expand quickly in increased temperatures
✔✔boiling point - ✔✔the temperature at which the vapor pressure of a liquid is just
equal to the external pressure on the liquid
✔✔flash point - ✔✔the minimum temperature at which a substance when mixed with air
will flash but not sustain combustion
✔✔freezing point - ✔✔the temperature at which a liquid changes to a solid
✔✔sublimation - ✔✔the process in which a solid changes directly into a gas
✔✔vapor density - ✔✔weight of a gas compared to the weight of an equivalent amount
of dry air
✔✔specific gravity (relative density) - ✔✔weight of a solid/liquid compared to that of an
equal volume of water
SET QUESTIONS AND ANSWERS SURE A+
✔✔search priorities - ✔✔immediate first area/rest of fire deck, deck directly above fire,
top deck, decks below fire
✔✔primary search - ✔✔a quick attempt to locate any potential victims who are in
danger
✔✔secondary attempt - ✔✔thorough search conducted after the situation is under
control
✔✔search patterns - ✔✔clockwise search (left-handed), counterclockwise search (right-
handed)
✔✔Fusible link - ✔✔used in fixed fire suppression systems, activated in the presence of
heat
✔✔Types of Ventilation - ✔✔hydraulic, mechanical, natural
✔✔hydraulic ventilation - ✔✔directing a fog stream of water out a window to increase air
and smoke movement
, ✔✔mechanical ventilation - ✔✔using a machine/fan to direct out smoke
✔✔natural ventilation - ✔✔supplying fresh air by opening up windows to a location and
moving foul air away from the location
✔✔Turn-Out Gear - ✔✔turnout coat & bunker pants, boots, helmet with face shield,
flash hood, respiratory protection
✔✔Limitations of Gear - ✔✔60 lbs causing fatigue, elevated body temps
✔✔Glove types - ✔✔gauntlet (normal glove style), wristlet (small sleeve attached to the
wrist)
✔✔ fire triangle - ✔✔fuel, oxygen, heat (removal of one extinguishes fire)
✔✔fire tetrahedron - ✔✔Heat, Fuel, Oxygen, Chemical Chain Reaction
✔✔explosive limits - ✔✔% of gas mixed with air above/below where ignition will NOT
take place: lower = mix is too lean to burn, upper = mix is too rich to burn
✔✔thermal layering - ✔✔gases forming in layers according to temperature
✔✔solids - ✔✔definite rigid shape and volume, motion is restricted to vibrations
✔✔liquids - ✔✔definite volume, indefinite shape, less dense than solid but denser than
gases
✔✔gases - ✔✔no definite shape or volume, expand quickly in increased temperatures
✔✔boiling point - ✔✔the temperature at which the vapor pressure of a liquid is just
equal to the external pressure on the liquid
✔✔flash point - ✔✔the minimum temperature at which a substance when mixed with air
will flash but not sustain combustion
✔✔freezing point - ✔✔the temperature at which a liquid changes to a solid
✔✔sublimation - ✔✔the process in which a solid changes directly into a gas
✔✔vapor density - ✔✔weight of a gas compared to the weight of an equivalent amount
of dry air
✔✔specific gravity (relative density) - ✔✔weight of a solid/liquid compared to that of an
equal volume of water
