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WorksheetsFire Behavior Quiz Part 3
Total questions: 15
Worksheet time: 8mins
Intake openings supply:
Smoke
Heat
Fresh air
Exhaust
Exhaust openings release:
Oxygen
Fresh air
Heat and smoke
Water vapor
The neutral plane is:
Where fire stops
Where pressures meet
The safest area
A ventilation opening
Rollover is identified by:
Floor ignition
Flames at the ceiling
Sudden collapse
Oxygen depletion
Rollover is a warning sign of:
Decay
Backdraft
Flashover
Extinction
Flashover temperatures can exceed:
500°F
1,000°F
1,800°F
2,500°F
Backdraft occurs when:
Fire lacks fuel
Oxygen is suddenly introduced
Smoke cools
Water is applied
Puffing smoke and stained windows indicate:
Flashover
Rollover
Backdraft
Smoke explosion
Modern construction burns faster because of:
Thicker walls
Synthetic materials
Less fuel
Steel framing
Lightweight construction can fail in:
1–2 minutes
3–4 minutes
5–10 minutes
20 minutes
Low ceilings increase risk of:
Slow fire spread
Rapid flashover
Backdraft prevention
Ventilation safety
Smoke explosions differ from backdrafts because they:
Require no heat
Occur away from fire
Only occur outdoors
Are harmless
Opening a door without water application in a vent-limited fire will likely:
Reduce heat
Increase fire growth
Stop combustion
Lower pressure
Cooling the gas layer prevents:
Pyrolysis
Ventilation
Flashover
Intake flow
Fire following the flow path means:
Fire moves randomly
Fire travels with air movement
Fire ignores ventilation
Fire spreads downward only
