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CDI-5 - Quiz
Contributed by: delos santos
  • 1. The Fire Triangle illustrates that fire cannot exist without all three elements. Which combination correctly represents the Fire Triangle?
A) Heat, Smoke, Flame
B) Fuel, Oxygen, Heat
C) Fuel, Oxygen, Chemical Chain Reaction
D) Oxygen, Flame, Ignition
  • 2. The Fire Tetrahedron adds one more element to the Fire Triangle. What does this additional element represent?
A) Fuel expansion
B) Smoke production
C) Heat radiation
D) Chemical chain reaction
  • 3. Which of the following BEST describes “products of combustion”?
A) Chemicals used to extinguish fire
B) Materials used to ignite fire
C) Substances produced as a result of burning
D) Materials that resist burning
  • 4. Smoke, heat, and toxic gases released during burning are examples of:
A) Fire hazards
B) Combustion by-products
C) Fire extinguishing agents
D) Thermal energy
  • 5. Friction, electricity, and chemical reaction are examples of what?
A) Products of fire spread
B) Sources of heat energy
C) Flame types
D) Forms of oxygen
  • 6. Which source of heat energy occurs when two objects rub together and produce heat?
A) Mechanical heat
B) Electrical heat
C) Solar heat
D) Chemical heat
  • 7. Heat transfer by direct physical contact between molecules is known as:
A) Expansion
B) Conduction
C) Radiation
D) Convection
  • 8. Which method of heat transfer is responsible for the upward movement of hot gases and smoke during a fire?
A) Conduction
B) Radiation
C) Reflection
D) Convection
  • 9. During which stage of fire development does the fire rapidly grow and heat build up, eventually leading to possible flashover?
A) Decay stage
B) Incipient stage
C) Fully developed stage
D) Growth stage
  • 10. The final stage of fire development, characterized by a drop in fuel or oxygen and reduced flame activity, is the:
A) Decay stage
B) Growth stage
C) Fully developed stage
D) Ignition stage
  • 11. A kitchen fire starts when oil on a pan overheats and ignites. Which element of the Fire Triangle was the FIRST to increase, causing the ignition?
A) Heat
B) Fuel
C) Oxygen
D) Chemical chain reaction
  • 12. A firefighter removes burning materials from a room to stop the fire from spreading. Which part of the Fire Triangle is being eliminated?
A) Oxygen
B) Chemical chain reaction
C) Heat
D) Fuel
  • 13. When a chemical fire continues to burn even after removing heat and fuel, which element of the Fire Tetrahedron is sustaining the fire?
A) Water vapor
B) Carbon dioxide
C) Oxygen
D) Chemical chain reaction
  • 14. firefighter enters a smoke-filled room and notices reduced visibility and strong toxic fumes. Which product of combustion is causing the MOST danger in this scenario?
A) Light
B) Toxic gases
C) Heat
D) Steam
  • 15. A wooden building ignites due to a lightning strike during a storm. Which source of heat energy triggered the fire?
A) Chemical heat
B) Electrical heat
C) Mechanical heat
D) Solar heat
  • 16. A steel beam heats up because it is directly touching a burning wooden wall. Which method of heat transfer is responsible?
A) Conduction
B) Convection
C) Radiation
D) Reflection
  • 17. Thick, black smoke rapidly fills the upper portion of a room and begins to push downward as temperature rises. Which method of heat transfer explains this movement?
A) Refractive heating
B) Convection
C) Radiation
D) Conduction
  • 18. A fire investigator concludes that sunlight passing through a broken glass window concentrated heat onto a rug, causing ignition. Which heat source is being applied here?
A) Solar
B) Electrical
C) Mechanical
D) Chemical
  • 19. A fire suddenly engulfs an entire room after heat builds up and gases reach ignition temperature. Which stage of fire development is demonstrated?
A) Incipient
B) Fully developed
C) Flashover leading to fully developed stage
D) Growth
  • 20. After firefighters knock down most of the flames, the fire weakens because combustible materials are consumed. Which stage of fire development is the fire entering?
A) Fully developed stage
B) Incipient stage
C) Decay stage
D) Growth stage
  • 21. A Class A fire involves which type of material?
A) Ordinary combustibles like wood and cloth
B) Electrical equipment
C) Combustible metals
D) Flammable liquids
  • 22. A fire involving gasoline and oil is classified as:
A) Class C
B) Class D
C) Class B
D) Class A
  • 23. What type of fire extinguisher is MOST appropriate for an electrical fire?
A) Wet chemical extinguisher
B) CO₂ or dry chemical extinguisher
C) Foam extinguisher
D) Water extinguisher
  • 24. Which fire extinguishing method works by lowering the temperature below ignition point?
A) Inhibiting chemical chain reaction
B) Smothering
C) Cooling
D) Starvation
  • 25. Removing combustible materials from a burning area is an example of which extinguishing method?
A) Smothering
B) Chemical inhibition
C) Starvation
D) Cooling
  • 26. The BEST method to extinguish a Class K (kitchen) fire caused by hot cooking oil is:
A) Smother with a lid or use wet chemical extinguisher
B) Pour water directly
C) Use a CO₂ extinguisher
D) Lower the room temperature
  • 27. Fire prevention primarily focuses on:
A) Suppressing flames as quickly as possible
B) Educating the public and eliminating hazards before ignition
C) Investigating causes of existing fires
D) Responding to fires that have already started
  • 28. Fire suppression refers to:
A) Stopping fires from starting
B) Investigating the fire’s cause
C) Controlling and extinguishing active fires
D) Training firefighters
  • 29. Which phase of firefighting includes exposure protection and preventing the fire from spreading?
A) Mop-up phase
B) Confinement phase
C) Rescue phase
D) Overhaul phase
  • 30. After the main fire is extinguished, firefighters check for hidden embers and remaining hotspots. This activity is part of the:
A) Size-up phase
B) Initial attack phase
C) Rescue phase
D) Overhaul phase
  • 31. Which fire class involves combustible solids like wood, cloth, and paper?
A) Class C
B) Class A
C) Class D
D) Class B
  • 32. What is the most appropriate extinguishing method for Class A fires?
A) Smothering with foam
B) Cooling with water
C) Using CO₂
D) Using dry powder
  • 33. Which fire class involves flammable liquids such as gasoline, oil, or paint?
A) Class K
B) Class C
C) Class D
D) Class B
  • 34. Which extinguishing agent is recommended for electrical (Class C) fires?
A) CO₂ or dry chemical powder
B) Water extinguisher
C) Wet chemical agent
D) Sand
  • 35. Which method of extinguishing fire works by removing oxygen from the fire triangle?
A) Smothering
B) Radiation
C) Starvation
D) Cooling
  • 36. Which of the following is the BEST example of fire prevention?
A) Removing burning materials
B) Closing doors to slow fire spread
C) Using foam to stop fire growth
D) Performing regular maintenance on electrical systems
  • 37. What is the FIRST phase of firefighting?
A) Salvage
B) Size-up
C) Overhaul
D) Suppression
  • 38. During which phase of firefighting do firefighters primarily work to extinguish the fire and stop its spread?
A) Control
B) Overhaul
C) Suppression
D) Salvage
  • 39. The phase in which firefighters search for hidden embers and prevent rekindling is called:
A) Size-up
B) Salvage
C) Overhaul
D) Control
  • 40. Which action is part of fire control rather than fire prevention?
A) Installing smoke detectors
B) Properly storing flammable liquids
C) Confine the fire to its area of origin
D) Educating the public about fire hazards
  • 41. Which of the following is an example of active fire protection?
A) Fire doors
B) Fire sprinkler system
C) Fire-resistant walls
D) Fire-stopping materials
  • 42. Which device detects smoke particles in the air using a light beam?
A) Photoelectric smoke detector
B) CO detector
C) Heat detector
D) Ionization detector
  • 43. Which of the following is considered passive fire protection?
A) Fire extinguishers
B) Automatic sprinklers
C) Fire alarm systems
D) Fire-rated walls and ceilings
  • 44. What type of detector activates when the temperature reaches a set level?
A) Flame detector
B) Smoke detector
C) Heat detector
D) Carbon monoxide detector
  • 45. Which fire suppression system uses water as its primary extinguishing agent?
A) FM-200 system
B) Water sprinkler system
C) CO₂ system
D) Dry chemical system
  • 46. Which component alerts building occupants during a fire emergency?
A) Manual pull station
B) Heat detector
C) Control panel
D) Alarm sounder or bell
  • 47. The main function of a flame detector is to detect:
A) Rising temperature
B) Carbon monoxide levels
C) Visible or infrared light from flames
D) Smoke particles
  • 48. Which system must be manually activated by a person?
A) Fire pump
B) Automatic sprinkler
C) Manual pull station
D) Smoke detector
  • 49. Fire doors are classified as what type of fire protection?
A) Detection system
B) Passive
C) Active
D) Special protection
  • 50. Which fire suppression agent is best for protecting sensitive electronic equipment?
A) Water
B) Sand
C) FM-200
D) CO₂
  • 51. Which device sends signals to the fire alarm control panel once smoke or heat is detected?
A) Fire hose reel
B) Fire vent
C) Sprinkler head
D) Automatic detector
  • 52. A fire alarm control panel is considered:
A) Detection equipment
B) Passive fire component
C) System control center
D) Notification appliance
  • 53. Which of the following is not an active fire protection system?
A) Smoke detector
B) Fire hose reel
C) Fire-resistant flooring
D) Fire alarm
  • 54. Which type of suppression system releases fine mist to cool and smother the fire?
A) Dry chemical system
B) CO₂ system
C) Wet pipe sprinkler
D) Water mist system
  • 55. The purpose of passive fire protection is to:
A) Suppress fire automatically
B) Contain fire and prevent spread
C) Notify building occupants
D) Detect fire early
  • 56. Which system activates only after a sprinkler head’s glass bulb bursts?
A) Deluge system
B) Dry pipe system
C) CO₂ flooding system
D) Wet pipe sprinkler system
  • 57. What component is used to manually signal a fire emergency?
A) Manual call point
B) Smoke barrier
C) Fire extinguisher bracket
D) Fire damper
  • 58. Fire dampers installed in air ducts are an example of:
A) Active suppression
B) Active fire detection
C) Passive fire protection
D) Alarm notification
  • 59. A device that sounds an alarm when smoke levels exceed a threshold is a:
A) Smoke detector
B) Ventilation damper
C) Fire hose
D) Fire hydrant
  • 60. Which equipment actively releases an extinguishing agent to control fire?
A) Fire partitions
B) Fire sprinkler
C) Fire-resistant walls
D) Fire-rated doors
  • 61. Which law governs the penal provisions for arson that replaced Article 320 of the Revised Penal Code?
A) PD 1602
B) PD 1613
C) RA 9262
D) RA 9851
  • 62. Under PD 1613, which is considered simple arson?
A) Burning a school building
B) Burning an inhabited house
C) Burning a warehouse used as storage for goods
D) Burning a government office
  • 63. Which of the following constitutes destructive arson under PD 1613?
A) Burning a pile of garbage
B) Burning an uninhabited hut
C) Burning one’s own belongings inside a private room
D) Burning a public building or government-owned structure
  • 64. What is the essential element of arson under PD 1613?
A) The property is damaged due to negligence
B) Intentional and malicious burning of property
C) Burning occurred due to natural causes
D) The fire was caused by accident
  • 65. Under PD 1613, which of the following acts does NOT constitute arson?
A) Burning grass in an empty lot accidentally
B) Burning a neighbor’s vehicle out of revenge
C) Setting fire to a building used for business
D) Deliberately burning crops belonging to another
  • 66. What is the penalty for destructive arson under PD 1613?
A) Arresto mayor
B) Reclusion perpetua to death
C) Fine only
D) Reclusion temporal
  • 67. Which scenario qualifies as arson “committed by means of explosion” under PD 1613?
A) Fire spreads naturally due to strong wind
B) A fire starts because of faulty electrical wiring
C) A person uses a bomb to set a building on fire
D) A person accidentally drops gasoline near a flame
  • 68. Under PD 1613, burning a building that is inhabited or used as a dwelling is classified as:
A) Destructive arson
B) Simple arson
C) Accidental burning
D) Negligent arson
  • 69. Which act constitutes attempted arson under PD 1613?
A) The suspect reports a fake fire
B) The suspect successfully burns a house
C) The suspect lights a match and places it on property but fire fails to spread
D) The suspect prepares gasoline but takes no action
  • 70. Under PD 1613, which is a qualifying circumstance that increases criminal liability for arson?
A) Arson committed accidentally
B) Arson committed on an empty field
C) Arson committed to conceal another crime
D) Fire caused by lightning
  • 71. A man intentionally burns his own warehouse to collect insurance. The fire spreads and destroys his neighbor’s store. What crime is he liable for under PD 1613?
A) Destructive arson
B) Simple arson
C) No crime, since it was his own property
D) Arson with intent to defraud
  • 72. A tenant sets fire to the apartment unit he is renting due to anger at the landlord. The apartment contains multiple dwellers. What type of arson applies?
A) Simple arson
B) Accidental arson
C) Destructive arson
D) Attempted arson
  • 73. A farmer burns his own rice field intentionally. The act is contained to his property only. What crime, if any, did he commit?
A) Malicious mischief
B) Simple arson
C) No arson
D) Destructive arson
  • 74. A person pours gasoline on a neighbor’s car and lights it on fire. The car is parked in an open garage attached to the house. What is the most appropriate classification?
A) Malicious burning
B) Destructive arson
C) Attempted arson
D) Simple arson
  • 75. A suspect lights a cloth soaked in gasoline and places it inside a store at night, but the fire dies out before spreading. What crime is committed?
A) Attempted arson
B) No crime
C) Destructive arson
D) Simple arson
  • 76. A student accidentally knocks over a candle that burns part of a classroom wall. What crime applies under PD 1613?
A) Destructive arson
B) Accidental fire (no arson)
C) Reckless imprudence resulting in damage
D) Simple arson
  • 77. A man burns a public market stall to destroy evidence after stealing valuables. Which qualifies this act under PD 1613?
A) Destructive arson
B) Arson with a qualifying circumstance
C) Accidental burning
D) Simple arson
  • 78. A factory owner purposely sets fire to a storage building containing toxic chemicals, causing danger to nearby residents. How is this classified?
A) Destructive arson
B) Attempted arson
C) Malicious mischief
D) Simple arson
  • 79. A child throws a lit match inside an uninhabited abandoned house as a prank, causing it to burn down. What is the legal implication?
A) Destructive arson
B) Simple arson because the structure is not inhabited
C) Attempted arson
D) No arson since the building is abandoned
  • 80. A person sets fire to a church using gasoline. No one is inside, but the building is severely damaged. How is this evaluated under PD 1613?
A) Attempted arson
B) Simple arson
C) Destructive arson
D) Accidental arson
  • 81. When arriving at a fire scene, what is the first step in evaluating it?
A) Remove debris to access the fire origin
B) Interview witnesses before observing the scene
C) Conduct a systematic scene survey
D) Start extinguishing the fire immediately
  • 82. A char pattern on a wooden floor forms a V-shape pointing toward a wall. What does this indicate?
A) Fire was caused by electrical fault
B) Fire originated near the wall
C) Fire moved randomly
D) Fire started on the ceiling
  • 83. Deep charring on the floor and furniture in one room suggests what about the fire?
A) The fire burned slowly
B) The fire started elsewhere
C) The fire was electrical
D) That room is likely the point of origin
  • 84. Which type of evidence is MOST important for determining the cause of a fire?
A) Witness statements only
B) Newspaper articles
C) Burn patterns
D) Firefighter reports only
  • 85. A room shows heavy charring near an outlet. What is the likely cause of fire?
A) Cooking accident
B) Lightning strike
C) Arson
D) Electrical malfunction
  • 86. If multiple small V-shaped patterns are found pointing toward one spot on the floor, this usually indicates:
A) Fire moved randomly
B) Fire started from a single point
C) Fire started from multiple points (possible arson)
D) Fire was accidental
  • 87. Heavy smoke staining on walls near the ceiling helps investigators determine:
A) Who caused the fire
B) The time the fire started
C) The spread and direction of fire
D) The exact cause of the fire
  • 88. Alligatoring of wood surfaces (cracks in char resembling alligator skin) indicates:
A) The intensity and duration of burning
B) Water was applied early
C) Fire started recently
D) Fire was caused by chemicals
  • 89. Which observation suggests the fire may have been intentionally set?
A) Multiple points of origin
B) Single area of deep charring
C) Fire confined to kitchen appliances
D) Uniform burn throughout the room
  • 90. Burn patterns that show “inverted cones” or holes in the ceiling usually indicate:
A) Fire started on the floor
B) Fire involved accelerants
C) Fire burned slowly
D) Fire was electrical
  • 91. At a fire scene, investigators notice that a single room is almost completely charred while adjacent rooms are lightly damaged. What does this suggest?
A) The heavily charred room is likely the point of origin
B) The fire originated in the adjacent rooms
C) The fire started on the roof
D) The fire was accidental
  • 92. A V-shaped burn pattern on a wooden wall points toward a corner. What can be inferred?
A) Fire likely originated at that corner
B) Fire originated on the ceiling
C) Fire was caused by natural causes
D) Fire moved away from the corner
  • 93. Investigators find multiple deep charring points in different areas of a room. What conclusion is most reasonable?
A) Fire started accidentally from one source
B) Fire was caused by lightning
C) Fire may have been intentionally set (possible arson)
D) Fire was caused by faulty ventilation
  • 94. Heavy smoke staining is observed on the upper walls and ceiling. What information does this provide?
A) The fire was intentionally set
B) The fire started low and spread upwards
C) The fire started at ceiling level
D) The fire was caused by an electrical fault
  • 95. Alligatoring of wooden surfaces is present in the room. What does this indicate?
A) Fire was brief and low intensity
B) Fire was intense and lasted a significant duration
C) Fire involved water accelerants
D) Fire was accidental
  • 96. A kitchen shows charring confined only to the stove area with minimal damage elsewhere. What is the most likely cause?
A) Electrical fire
B) Cooking accident
C) Arson
D) Lightning strike
  • 97. Inverted cone burn patterns are observed on the floor and walls. What does this suggest about the fire?
A) Fire was caused by a natural source
B) Accelerants were likely used
C) Fire was caused by electrical short circuit
D) Fire started in the ceiling
  • 98. Investigators note a burn pattern that moves from a lower corner to the ceiling in a distinct path. What can be inferred?
A) Fire started at the lower corner and spread upward
B) Fire was intentionally started on the roof
C) Fire was accidental
D) Fire originated on the ceiling
  • 99. A garage has several burn patterns concentrated near stored gasoline cans. What is the likely cause of fire?
A) Electrical malfunction
B) Fire ignited using accelerants
C) Lightning strike
D) Spontaneous combustion
  • 100. Multiple rooms show similar V-shaped burn patterns pointing toward a central point. What does this suggest about the fire scene?
A) Fire spread from the ceiling
B) Fire was accidental
C) Fire started outside the building
D) Central point may indicate multiple ignition sources (possible arson)
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