- 1. While studying fire behavior, a student lists the elements needed for fire. Which of the following is
NOT an element of fire?
A) Heat
B) Fuel
C) Oxygen
D) Free Radicals
- 2. In a fire safety lecture, the instructor shows a diagram representing oxygen, heat, and fuel. What is this diagram called?
A) Triangle of Fire
B) Fire Triangle Theory
C) Fire Tetrahedron
D) Tetrahedron of Fire
- 3. A live electrical panel with energized wiring catches fire, with some burning insulation and plastic. What is the correct fire class while the equipment remains energized?
A) Class E
B) Class B
C) Class C
D) Class A
- 4. A liquid gives off vapors that ignite momentarily when exposed to flame but do not sustain burning.
What temperature condition does this describe?
A) Ignition temperature
B) Flashpoint
C) Fire point
D) Boiling point
- 5. In flaming mode, how hot the temperature can go?
A) 1,000-1,125 degrees Celsius
B) 38-100 degrees Celsius
C) 400-600 degrees Celsius
D) 1,000-1,500 degrees Celsius
- 6. Which extinguishing agent is most suitable for an energized electrical equipment fire while minimizing damage to sensitive equipment?
A) Water spray for maximum cooling
B) AFFF foam blanket over electronics
C) CO₂ for smothering without residue
D) Dry chemical with heavy particulate
- 7. A fire starts when a match is struck and reacts quickly with the air. What do you call this rapid chemical reaction?
A) Fire
B) Chemical Reactivity
C) Inhibition
D) Chemical Reaction
- 8. A firefighter feels the warmth coming from the burning materials during a fire. What form of energy is being experienced that can be measured by temperature?
A) Heat
B) Combustion
C) Oxygen
D) Fuel
- 9. Which stage of fire is considered out of control and may involve conflagration or explosion?
A) Flame Stage
B) Heat, Conflagration, or Explosion Stage
C) Incipient Stage
D) Smoldering Stage
- 10. What is the most effective primary extinguishing method for a deep-seated Class A fire involving stacked cardboard with glowing embers?
A) Smothering the surface with foam
B) Inhibiting the chemical chain reaction with dry chemical
C) Cooling with large volumes of water
D) Separating fuel by pushing piles apart only
- 11. A flammable liquid spills inside a closed warehouse, and its vapors settle near the floor instead of rising. Which property explains this behavior?
A) Vapor pressure
B) Specific gravity
C) Vapor density
D) Flashpoint
- 12. In a classroom discussion about air composition, which of the following is NOT a correct component of air?
A) 78% Hydrogen gas
B) 78% of Nitrogen
C) 21% normal oxygen
D) 1% of other gases
- 13. Which two modes of heat transfer explain fire spread through a heated metal pipe and the movement of hot smoke along the ceiling?
A) Convection and oxidation
B) Radiation and flame contact
C) Conduction and radiation
D) Conduction and convection
- 14. Fire occurs when a fuel chemically reacts with oxygen, producing heatWhat chemical process is responsible for this reaction?
A) Endothermic reaction
B) Specific gravity
C) Oxidation
D) Vapor Density
- 15. How do multipurpose dry chemical agents (ABC type) primarily interrupt the combustion process?
A) They form a foam blanket separating fuel and air
B) They cool the fuel below its ignition temperature
C) They absorb fuel vapors inside their particles
D) They disrupt the chemical chain reaction in the flame
- 16. Once a material ignites, it continues to burn even after the ignition source is removed. This indicates that the material has reached its:
A) Temperature
B) Flashpoint
C) Vapor pressure
D) Fire point
- 17. Investigators find that gasoline was deliberately poured along a hallway to help a fire spread quickly. In intentional fire terminology, what is the gasoline?
A) Trailer
B) Oxidizer
C) Plant
D) Accelerant
- 18. Which phase of fire is the initial stage where combustion begins and the fire is small and confined to the fuel first ignited?
A) Decay Phase
B) Incipient / Ignition / Beginning Phase
C) Smoldering Phase
D) Free-Burning Phase
- 19. A chemical substance must absorb heat before a reaction can occur, slowing down the spread of fire. What chemical property is involved?
A) Exothermic reaction
B) Endothermic reaction
C) Oxidation
D) Combustion
- 20. According to Felipe G. Montojo (2006), which stage of fire shows no visible smoke, flame, or sufficient heat?
A) Heat or Explosion Stage
B) Flame Stage
C) Incipient Stage
D) Smoldering Stage
- 21. During a fire, heat is released continuously, allowing the fire to spread to nearby materials. Which chemical property explains this release of heat?
A) Exothermic reaction
B) Condensation
C) Endothermic reaction
D) Vaporization
- 22. A substance ignites without an external spark or flame after reaching a certain temperature. What physical property does this demonstrate?
A) Flashpoint
B) Fire point
C) Ignition temperature
D) Boiling point
- 23. During a fire investigation, the officer identifies a gas in the air that supports burning and has no color or smell. What gas is this?
A) Oxygen
B) Smoke
C) Carbon Dioxide
D) Free Radicals
- 24. A stack of wooden pallets and cardboard boxes in a warehouse catches fire. By fuel, what class is this?
A) Class C
B) Class D
C) Class B
D) Class A
- 25. In a burned building, fire investigators find crumpled newspapers stacked under curtains and soaked with a flammable liquid, clearly arranged before ignition. What term best describes the deliberate gathering of these combustibles?
A) Accelerant
B) Plant
C) Trailer
D) Oxidizing agent
- 26. A fire scene shows a continuous line of flammable liquid from the living room to the kitchen, allowing the fire to travel from room to room. What is this arrangement called?
A) Plant
B) Trailer
C) Line surge
D) Accelerant
- 27. During a fire investigation, officers identify a material that reacts with oxygen and produces flames. What is this substance called?
A) Oxygen
B) Smoke
C) Heat
D) Fuel
- 28. A liquid starts boiling when its vapor pressure becomes equal to atmospheric pressure. Which property refers to this constant temperature?
A) Ignition temperature
B) Fire Point
C) Flashpoint
D) Boiling point
- 29. What is the weight of air?
A) 1.75
B) .7
C) 1.00
D) 0.01
- 30. Cooking oil in a deep fryer in a restaurant kitchen overheats and ignites, creating tall flames. What class of fire is this?
A) Class E
B) Class A
C) Class K
D) Class D
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