Essentials of Fire Fighting 7th Edition - Practice
Exam 2025 Questions and Answers (Verified
Answers) With Rationales
1. What are the four components of the fire tetrahedron? a) Heat, fuel,
oxygen, and water b) Heat, fuel, oxygen, and chemical chain reaction c)
Heat, fuel, carbon dioxide, and chemical chain reaction d) Heat,
combustion, oxygen, and chemical chain reaction
The fire tetrahedron consists of heat, fuel, oxygen, and chemical chain reaction. All
four components must be present for combustion to occur and continue.
2. Which class of fire involves ordinary combustible materials such as wood,
paper, and fabric? a) Class A b) Class B c) Class C d) Class D
Class A fires involve ordinary combustible materials like wood, paper, fabric, and
similar materials that leave ash when burned.
3. What is the primary purpose of ventilation during firefighting operations?
a) To provide fresh air for firefighters b) To remove heat, smoke, and toxic
gases from the structure c) To cool the building structure d) To prevent
backdraft conditions
Ventilation removes heat, smoke, and toxic gases from the structure, improving
visibility and conditions for firefighters while facilitating fire suppression efforts.
4. Which rope construction method provides the greatest strength? a) Laid
rope b) Kernmantle rope c) Braided rope d) Twisted rope
, Kernmantle rope construction, with its core (kern) and sheath (mantle) design,
provides the greatest strength and is preferred for life safety applications.
5. What is the minimum flow rate for a smooth bore nozzle on a 1¾-inch
hoseline? a) 95 gpm b) 100 gpm c) 125 gpm d) 150 gpm
The minimum effective flow rate for a smooth bore nozzle on a 1¾-inch hoseline is
100 gpm to provide adequate reach and penetration.
6. Which type of ladder is most commonly used for rescue operations from
upper floors? a) Extension ladder b) Aerial ladder c) Roof ladder d) Folding
ladder
Aerial ladders provide the reach and stability needed for rescue operations from
upper floors and are specifically designed for this purpose.
7. What does SCBA stand for? a) Self-Contained Breathing Aid b) Self-
Contained Breathing Apparatus c) Self-Controlled Breathing Apparatus d)
Self-Contained Breathing Assembly
SCBA stands for Self-Contained Breathing Apparatus, which provides firefighters
with clean breathing air in hazardous atmospheres.
8. Which foam application method is most effective for Class B fires involving
flammable liquids? a) Direct application b) Gentle application c) Fog
application d) Straight stream application
Gentle application prevents disruption of the fuel surface and allows foam to
spread evenly across flammable liquids, creating an effective vapor barrier.
9. What is the recommended working time limit for SCBA under normal
conditions? a) 15 minutes b) 20 minutes c) 30 minutes d) 45 minutes
Exam 2025 Questions and Answers (Verified
Answers) With Rationales
1. What are the four components of the fire tetrahedron? a) Heat, fuel,
oxygen, and water b) Heat, fuel, oxygen, and chemical chain reaction c)
Heat, fuel, carbon dioxide, and chemical chain reaction d) Heat,
combustion, oxygen, and chemical chain reaction
The fire tetrahedron consists of heat, fuel, oxygen, and chemical chain reaction. All
four components must be present for combustion to occur and continue.
2. Which class of fire involves ordinary combustible materials such as wood,
paper, and fabric? a) Class A b) Class B c) Class C d) Class D
Class A fires involve ordinary combustible materials like wood, paper, fabric, and
similar materials that leave ash when burned.
3. What is the primary purpose of ventilation during firefighting operations?
a) To provide fresh air for firefighters b) To remove heat, smoke, and toxic
gases from the structure c) To cool the building structure d) To prevent
backdraft conditions
Ventilation removes heat, smoke, and toxic gases from the structure, improving
visibility and conditions for firefighters while facilitating fire suppression efforts.
4. Which rope construction method provides the greatest strength? a) Laid
rope b) Kernmantle rope c) Braided rope d) Twisted rope
, Kernmantle rope construction, with its core (kern) and sheath (mantle) design,
provides the greatest strength and is preferred for life safety applications.
5. What is the minimum flow rate for a smooth bore nozzle on a 1¾-inch
hoseline? a) 95 gpm b) 100 gpm c) 125 gpm d) 150 gpm
The minimum effective flow rate for a smooth bore nozzle on a 1¾-inch hoseline is
100 gpm to provide adequate reach and penetration.
6. Which type of ladder is most commonly used for rescue operations from
upper floors? a) Extension ladder b) Aerial ladder c) Roof ladder d) Folding
ladder
Aerial ladders provide the reach and stability needed for rescue operations from
upper floors and are specifically designed for this purpose.
7. What does SCBA stand for? a) Self-Contained Breathing Aid b) Self-
Contained Breathing Apparatus c) Self-Controlled Breathing Apparatus d)
Self-Contained Breathing Assembly
SCBA stands for Self-Contained Breathing Apparatus, which provides firefighters
with clean breathing air in hazardous atmospheres.
8. Which foam application method is most effective for Class B fires involving
flammable liquids? a) Direct application b) Gentle application c) Fog
application d) Straight stream application
Gentle application prevents disruption of the fuel surface and allows foam to
spread evenly across flammable liquids, creating an effective vapor barrier.
9. What is the recommended working time limit for SCBA under normal
conditions? a) 15 minutes b) 20 minutes c) 30 minutes d) 45 minutes
