(Incident Safety Officer) Chapter 7 Reading smoke Flashcards
What is not a key attribute to reading smoke?
A. Volume
B. Velocity (Pressure)
C. Density
D. Force
D. Force
Volume, Velocity (Pressure), Density, Color
If the ISO identifies the warning signs of growing fire, smoke being trapped by the fire and pressurizing. What is this sign of?
A. Backdraft
B. Flash over
C. Rapid Fire
D. Smoke explosion
D. Smoke explosion
___can best be defined as product of incomplete combustion that includes an aggregate of solid, aerosols, and fire gases that are toxic, blammable and volatile
A. Fire
B. Flames
C. Pressure
D. Smoke
D. Smoke
____ is it when all the gasses reach their ignition temperature at virtually the same time due to rapid heat build up in the box?
A. Flashover
B. Smoke explosion
C. Backdraft
D. Rapid fire spread
Flashover
What is not considered a Hostel fire event?
A. Flashover
B. Backdraft
C. Smoke explosions
D. Slow Fire spread
D. Slow Fire Spread
Flashover, Backdraft, Smoke explosion, Rapid fire spread
What is not a sign of turbulent smoke flow?
A. Agitated
B. Boiling
C. Angry
D. Laminar
D. Laminar
____ is the smooth and stable slow of smoke though a building?
A. Laminar smoke flow
B. Turbulent smoke flow
C. Velocity
D. Volume
A. Laminar Smoke flow
Per IOS book smoke color tells the stage of heating and points to the location of the fire in the building. Brown smoke from structrual spaces indicated that the fire is transitioning from a contants fire to what?
A. Fully involved
B. Fire is under control
C. Fire is worsening
D. Fire is transitioning to the structure
D. Fire is transitioning to the structure
Page 122
When reading smoke per ISO; What is the most imortant smoke observation
A. Smoke flow is tubulant or laminar
B. Dencity
C. Color
D. Volume
A. Smoke flow is tubulant or laminar
What is not a factor that influcence smoke?
A. Weather
B. Thermal balance
C. Container size
D. Space
D. Space
4 factors: Weather, Thermal Balance, Container size, Firefighting efforts
Page 122
Smoke leaving a building when the outside air is blow freezing turns the smoke what color?
A. Black
B. Gray
C. Brown
D. White
D. White
It is the result of of smoke, humid moisute or humidity condensing
From the IOS’s perspective signs of air being sucked into a building indicated that the fire is________.
A. Subsiding
B. Growing
C. Intense
D. Fire is being knocked down
C. Intense
Sudden inflow of air can cause fire to take off trapping firefighters
A fully involved trash can fire in a small shed will be visible from the outside. The same trash can in a large building such as home depot will not show anything from the street. If seeing light smoke on approach of a large building indicates what?
A. The fire is small
B. The fire is in the front of the building
C. Indicates a large dangerous fire
D. 1 3/4 line will put out the fire
C. Indicates a large dangerous fire
See container size page 126
When would you know by reading smoke that firefighting efforts has imporved?
A. Smoke Color changes lighter
B. Smoke Velocity changes slower
C. Smoke Density thins
D. Smoke Volume slows
E. All of the above
E. All of the above
All 4 reading smoke should improve
ISO Rapid application to reading smoke are?
A. Volume, Velocity, Density
B. Smoke speed, Container size, Weather
C. View the 4 smoke attributes, Analyse the contibuting factors, Determain rate of change of attributes
D. None of the above
C. View the 4 smoke attributes, Analyse the contibuting factors, Determain rate of change of attributes
