CDI6-FITAIN
  • 1. The fire triangle consists of?
A) Fuel, air, ignition
B) Heat, fuel, chemical chain reaction
C) Oxygen, fuel, heat
D) Combustion, smoke, flame
  • 2. The fire tetrahedron differs from the fire triangle by including?
A) Chemical chain reaction
B) Oxygen
C) Heat
D) Fuel
  • 3. Which is not a product of complete combustion?
A) Carbon monoxide
B) Heat energy
C) Water vapor
D) Carbon dioxide
  • 4. Primary source of heat in spontaneous combustion?
A) Internal chemical reaction
B) Electrical sparks
C) Open flame
D) Sunlight
  • 5. Conduction transfers heat through?
A) Electromagnetic waves
B) Convection currents
C) Direct molecular contact
D) Fluid movement
  • 6. Convection transfers heat by?
A) Molecular vibrations
B) Fire suppression
C) Radiation from fire
D) Fluid movement
  • 7. Stage of fire with rapid spread and full involvement of materials?
A) Incipient
B) Decay
C) Fully developed
D) Growth
  • 8. A fire in the incipient stage is best controlled by?
A) Ventilation control
B) Portable extinguisher
C) Letting it burn
D) Fire department only
  • 9. Primary sources of ignition include?
A) All of the above
B) Spontaneous heating
C) Friction
D) Solar heat
  • 10. The tetrahedron model emphasizes suppression by removing?
A) Smoke
B) Heat, fuel, oxygen, or chain reaction
C) Water only
D) Flame
  • 11. Class A fire involve?
A) Electrical equipment
B) Metals
C) Ordinary combustibles
D) Flammable liquids
  • 12. Fire prevention focuses on?
A) Controlling smoke
B) Rescue
C) Eliminating ignition sources
D) Extinguishing after ignition
  • 13. Primary goal of fire suppression?
A) Observe pattern
B) Post-fire investigation
C) Confine and extinguish fire
D) Let it burn safely
  • 14. Fire triangle element that can be removed to extinguish fire?
A) Heat
B) Any of the above
C) Oxygen
D) Fuel
  • 15. Passive fire protection includes?
A) Smoke detectors
B) Fire alarms
C) Fire-resistant walls and doors
D) Sprinklers
  • 16. Small fire in trash can, appropriate action?
A) Decay, foam
B) Fire-resistant walls and doors
C) Growth stage, portable extinguisher
D) Fully developed, water hose
  • 17. Black smoke and incomplete combustion products indicate?
A) Incomplete combustion
B) Complete combustion
C) Spontaneous combustion
D) Flashover
  • 18. Heat transferring via direct contact to nearby metal beam demonstrates?
A) Conduction
B) Combustion
C) Radiation
D) Convection
  • 19. Multiple ignition sources suggest manipulation of which fire tetrahedron element?
A) Oxygen
B) Chain reaction
C) Heat
D) Fuel
  • 20. Hot gases rising in a room illustrate?
A) Conduction
B) Radiation
C) Combustion
D) Convection
  • 21. Heat damage patterns suggest which fire stage?
A) Growth
B) Fully developed
C) Incipient
D) Decay
  • 22. Removing oxygen to extinguish a fire demonstrates?
A) Remove fuel
B) Remove heat
C) Remove oxygen
D) Disrupt chain reaction
  • 23. Electrical short circuit causes fire; heat source is?
A) Solar
B) Electrical
C) Mechanical
D) Chemical
  • 24. Heat radiating across room without contact is?
A) Conduction
B) Convection
C) Radiation
D) Diffusion
  • 25. Flashover occurs in which stage?
A) Fully developed
B) Decay
C) Growth
D) Incipient
  • 26. Homeowner leaves stove on; fire occurs. Type of arson?
A) Negligent
B) Qualified
C) Malicious
D) Accidental
  • 27. Intentionally burning neighbor’s warehouse is?
A) Malicious arson
B) Accidental fire
C) Qualified arson
D) Negligent arson
  • 28. Fire caused to commit insurance fraud is?
A) Accidental
B) Simple arson
C) Qualified arson
D) Negligent fire
  • 29. Aggravating factor under PD 1613: Fire occurs at night
A) Special aggravating circumstance
B) generic aggravating circumstance
C) A qualifying circumstance
D) Not an aggravating circumstance
  • 30. Small electrical fire in transformer; extinguisher?
A) Dry powder
B) Foam
C) CO₂
D) Water
  • 31. Shutting off fuel supply during fire represents?
A) Remove fuel
B) Remove oxygen
C) Interrupt chain reaction
D) Remove heat
  • 32. Ventilation of smoke in structure fire is part of?
A) Overhaul
B) Rescue
C) Suppression
D) Exposure protection
  • 33. Dry powder used to interrupt chemical reaction is?
A) Cooling
B) Smothering
C) Chain reaction interruption
D) Starvation
  • 34. Fire drills and training represent?
A) Overhaul
B) Prevention
C) Investigation
D) Suppression
  • 35. Hose application to limit warehouse fire spread is part of?
A) Rescue
B) Exposure protection and suppression
C) Overhaul
D) Investigation
  • 36. Class D fire in metal factory; extinguishing strategy?
A) Dry powder
B) Water
C) Foam
D) Cloth
  • 37. Cooling embers after fire is part of?
A) Rescue
B) Prevention
C) Overhaul
D) Suppression
  • 38. Removing flammable chemicals in lab is?
A) PPE
B) Administrative control
C) Engineering control
D) Overhaul
  • 39. Foam applied to flammable liquid spill while evacuating people combines?
A) Smothering; Rescue & Suppression
B) Starvation; Prevention
C) Chain reaction disruption; Overhaul
D) Cooling; Rescue
  • 40. CO₂ extinguisher in computer server room used to?
A) Overhaul
B) Remove fuel
C) Cool fire
D) Avoid water damage while displacing oxygen
  • 41. Water lines to protect exposures illustrate?
A) Overhaul
B) Suppression & exposure protection
C) Prevention
D) Rescue
  • 42. Coordinated firefighting teams demonstrate?
A) Fireground management during suppression
B) Overhaul
C) Rescue only
D) Prevention
  • 43. Removing gasoline spill fire by taking unignited fuel?
A) Smothering
B) Cooling
C) Interrupt chain reaction
D) Removing fuel
  • 44. Covering oil-soaked rags with metal lid is?
A) Chain reaction interruption
B) Cooling
C) Water application
D) Smothering
  • 45. Heat and flame patterns near doorway help to?
A) Suppression methods
B) Fire classification
C) Rescue
D) Determine fire origin
  • 46. V-shaped burn pattern indicates?
A) Suppression error
B) Accelerants
C) Point of origin at bottom of V
D) Electrical fire
  • 47. Heavy ceiling fire, furniture intact; fire started?
A) Floor level
B) High
C) Explosion
D) Accidental
  • 48. Irregular burn and accelerant residues suggest?
A) Spontaneous combustion
B) Electrical fire
C) Arson
D) Accidental fire
  • 49. Soot distribution analysis used to?
A) Age building
B) Rescue
C) Identify fire origin & cause
D) Suppression efficiency
  • 50. Burn patterns spreading outward from center indicate?
A) Multiple points
B) Arson excluded
C) Electrical fault
D) Fire started at single point
  • 51. Multiple ignition sources suggest?
A) Standard growth
B) Intentional fire (arson)
C) Electrical fire
D) Single accidental fire
  • 52. Smoke swirling along ventilation paths indicates?
A) Passive failure
B) Fire started at ceiling
C) Fire suppressed quickly
D) Fire spread influenced by air movement
  • 53. Corners burned, center lightly charred suggest?
A) Electrical fire
B) Accelerants in corners
C) Accidental fire at center
D) Standard suppression
  • 54. Irregular charring at multiple entries suggests?
A) Accidental fire
B) Multiple origin (arson)
C) Single source
D) Electrical origin
  • 55. Alligatoring on wood indicates?
A) Age
B) Passive efficiency
C) Soot removal
D) Fire intensity & spread
  • 56. Active detection requires?
A) Passive alarms
B) Sprinklers
C) Sensors or devices
D) Fire-resistant walls
  • 57. Smoke detectors are?
A) Passive detection
B) Alarm only
C) Suppression
D) Active detection
  • 58. Fire-rated walls are?
A) Alarm components
B) Passive protection
C) Active detection
D) Sprinklers
  • 59. Fire alarm control panel functions to?
A) Detect smoke & trigger alarm
B) Ventilate smoke
C) Contain fuel
D) Suppress fire
  • 60. Manual pull stations activate?
A) Fireproof barrier
B) Active detection & alarm
C) Sprinkler suppression
D) Passive detection
  • 61. Sprinkler with heat sensor?
A) Passive protection
B) Overhaul tool
C) Alarm only
D) Active detection & suppression
  • 62. Multiple points of origin indicate?
A) Electrical fire
B) Accidental
C) Spontaneous fire
D) Intentional/arson
  • 63. Standpipe system is?
A) Alarm system
B) Active suppression support
C) Detection
D) Passive barrier
  • 64. Flame detector in storage?
A) Active detection
B) Alarm only
C) Overhaul
D) Passive detection
  • 65. Arson requires?
A) Negligence
B) Only fire & damage
C) Rescue operations
D) Malice, fire, property damage
  • 66. Fire set to intimidate workers?
A) Passive failure
B) Simple negligence
C) Suppression act
D) Qualified arson
  • 67. Explosive material fire classification?
A) Negligent fire
B) Passive failure
C) Simple arson
D) Qualified arson with aggravation
  • 68. Arson with insurance fraud is?
A) Simple fire
B) Malicious/qualified
C) Passive violation
D) Negligent fire
  • 69. Aggravating factors include?
A) Unoccupied building
B) Own property
C) Nighttime fire
D) Fire extinguished
  • 70. Multiple V-patterns in rooms suggest?
A) Electrical
B) Multiple ignition points
C) Single accidental
D) Standard growth
  • 71. Accelerants and irregular burn patterns suggest?
A) Accidental
B) Arson
C) Passive failure
D) Negligence
  • 72. Char depth analysis estimates?
A) Building age
B) Fire intensity & duration
C) Suppression
D) Ownership
  • 73. Smoke residue on ceiling traces?
A) Property value
B) Fire path & movement
C) Fire age
D) Overhaul
  • 74. Rapid charring on floorboards indicates?
A) Suppression effective
B) Fire origin near floor
C) Passive failure
D) Accelerants
  • 75. Fire scene with multiple points of origin & entries?
A) Electrical
B) Suppression error
C) Accidental
D) Likely arson
  • 76. Malicious arson evaluation considers?
A) Alarm presence
B) Intent, property type, risk to life
C) Financial loss only
D) Time of day only
  • 77. Arson for tax evasion is?
A) Prevention violation
B) Qualified due to fraud & malice
C) Negligent
D) Accidental
  • 78. Differentiating arson vs accidental?
A) Fire extinguishers
B) Malicious intent & accelerants
C) Fire department arrival
D) Detection time
  • 79. Fire set at night in multi-unit building?
A) Property value
B) Time & risk to human life
C) Sprinkler presence
D) Department arrival
  • 80. Fire intentionally set in school; investigators focus on?
A) Detection only
B) Passive protection
C) Sprinkler efficiency
D) Malice, risk, property damage
  • 81. Torch used to ignite neighbor’s house?
A) Negligent
B) Suppression oversight
C) Passive failure
D) Malicious arson
  • 82. Use of flammable liquids aggravates?
A) Irrelevant
B) Reduces penalty
C) Penalty
D) Suppression
  • 83. Burn patterns concentrated in doorway?
A) Random
B) Point of origin
C) Accelerants
D) Electrical fault
  • 84. Irregular burn near ceiling vent indicates?
A) Fire started at floor
B) Point of origin
C) Electrical fault
D) Air-influenced fire spread
  • 85. Alligatoring on wooden surfaces helps analyze?
A) Passive efficiency
B) Fire intensity & spread
C) Soot removal
D) Wood age
  • 86. Investigators find burn patterns leading to multiple disconnected points. This suggests?
A) Electrical fire only
B) Passive protection failure
C) Accidental fire
D) Multiple ignition sources indicating possible arson
  • 87. Heavy charring near flammable chemical containers indicates?
A) Intentional ignition using accelerants
B) Electrical short
C) Standard fire growth
D) Spontaneous fire
  • 88. Fire spreading faster along flammable liquid trails suggests?
A) Passive protection success
B) Overhaul procedure
C) Accidental fire
D) Use of accelerants to intentionally spread fire
  • 89. V-patterns leading to multiple walls indicate?
A) Multiple intentional points of origin
B) Electrical fault
C) Standard flame progression
D) Single accidental origin
  • 90. Burn pattern analysis in a warehouse shows fire intensifying near doors and windows. This could indicate?
A) Fire started at roof
B) Passive protection
C) Fire spread influenced by ventilation
D) Electrical short only
  • 91. Charring on floorboards with minimal ceiling damage helps determine?
A) Electrical origin only
B) Fire origin near floor
C) Fire suppression success
D) Passive protection breach
  • 92. Irregular alligatoring and deep char in multiple rooms suggests?
A) Accidental fire
B) Malicious arson with multiple ignition points
C) Electrical short
D) Spontaneous combustion
  • 93. Accelerant residue found at several points in a building supports?
A) Electrical fault
B) Passive detection failure
C) Negligent fire
D) Intentional arson
  • 94. Burn patterns in a stairwell indicate rapid vertical fire spread. This analysis helps investigators determine?
A) Fire intensity and movement
B) Fire extinguisher placement
C) Building age
D) Fire origin only
  • 95. Smoke staining on ceiling beams, concentrated near vent openings, suggests?
A) Fire spread influenced by air currents
B) Fire origin near ceiling
C) Passive protection failure
D) Negligent fire
  • 96. Multiple points of heavy charring near electrical panels and doorways indicate?
A) Fire suppressed too early
B) Single accidental fire
C) Possible deliberate ignition with accelerants
D) Fireproofing failure
  • 97. Burn patterns radiating from overturned containers of flammable liquid indicate?
A) Accidental spill fire
B) Passive protection violation
C) Arson using accelerants
D) Electrical fire
  • 98. “U-shaped” char patterns on walls and furniture suggest?
A) Multiple intentional ignition points
B) Passive protection success
C) Single accidental origin
D) Fire spread naturally
  • 99. Rapid fire spread in interconnected rooms, unusual charring on supporting beams, indicates?
A) Electrical origin
B) Standard growth
C) Potential arson with accelerants
D) Overhaul stage only
  • 100. Investigators conclude that unusual burn patterns, multiple points of origin, and accelerant residue together suggest?
A) Malicious arson
B) Fire suppression error
C) Negligent fire
D) Electrical short
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