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WorksheetsFire Behavior Quiz Part 2
Total questions: 20
Worksheet time: 10mins
Free radicals are:
Stable molecules
Fully burned gases
Highly reactive fragments
Cooling agents
The chain reaction is sustained by:
Oxygen alone
Heat feedback
Smoke cooling
Water vapor
Which fuel has the highest surface-to-mass ratio?
Wooden beam
Log
Sawdust
Furniture
Vertical fuel burns faster because:
Gravity increases flames
Radiation decreases
Convection preheats fuel above
Oxygen is heavier
Fuel proximity affects fire growth by:
Increasing airflow
Allowing radiant preheating
Lowering ignition temp
Blocking heat
Flash point is the temperature where a liquid:
Burns continuously
Produces ignitable vapors
Explodes
Reaches auto-ignition
Fire point differs from flash point because it:
Is lower
Is unrelated
Sustains burning
Prevents ignition
A liquid with flash point below 100°F is:
Combustible
Flammable
Non-hazardous
Insoluble
A fuel with specific gravity greater than 1 will:
Float
Vaporize
Sink
Mix with water
Vapor density compares gas weight to:
Water
Smoke
Dry air
Fuel
A vapor density of 0.8 means the gas will:
Sink
Rise
Pool on floors
Be non-flammable
Gasoline vapors are dangerous because they:
Rise quickly
Are heavier than air
Dissolve in water
Cool rapidly
Heat transfer through solid materials is:
Convection
Radiation
Conduction
Compression
Heat transfer by moving smoke and gases is:
Radiation
Conduction
Convection
Pyrolysis
Radiation is dangerous because it:
Requires contact
Travels through space
Depends on airflow
Stops at walls
Thermal layering forms during:
Incipient
Growth
Fully developed
Decay
Flashover marks the transition between:
Incipient and growth
Growth and fully developed
Fully developed and decay
Decay and extinction
Oxygen decreases most during:
Incipient
Growth
Fully developed
Decay
Flow path describes:
Hose movement
Fire attack direction
Air and smoke movement
Building layout
Fire gases move from:
Low to high pressure
High to low pressure
Cool to warm
Floor to ceiling only
