TB 14 - Indirect Method Of Fighting Fires In Railroad Cars Flashcards
An indirect method of fighting fires in railroad cars containing cotton, dry express (unrefrigerated cargo), baggage and Mail has been approved by who?
The department
If the fire commander decides to use the indirect method, the procedures include what?
Keeping car doors closed
Cut small hole in roof above fire
Insert a fine spray stream in hole
The fire within the car is subsequently extinguished by what?
Reduction of temp below ignition point
Smothering fire/eliminating oxygen within car below point required to continue combustion
Car doors are to remain in which position until fire has been extinguished?
Closed
Locate the seat of the fire within the car how (3 things)?
Visual observe paint blistering
Hand exploration of car
Wetting down car and observe location of fastest rate of evaporation
Once location of fire is determined, cut small hole in car roof directly above fire just large enough to insert and move spray nozzle in what direction?
Side to side
Cutting a hole on the roof of the car can be accomplished best with what tool?
Axe
The roof material is usually metal which is what thickness separated by an insulated material which can be easily penetrated with an axe?
Single or double thickness
Water in what form should be introduced through hole into car to cover the fire area?
Fine spray form
To be certain extinguishment is complete a waiting period of how many minutes should elapse after smoke is no longer visible from the hole in the car before opening car doors?
10 minutes
If the fire has already burned a hole in the floor of the car, this hole should be immediately plugged with what if possible?
Spray nozzle
The indirect method confines the fire to its exact area of origin making it easier to determine what?
True cause of fire
In box cars containing cotton, the fire commander should wait how long after smoke emission has stopped before having doors opened?
1 hour
To prevent rekindle in cotton, the bales which have been exposed to fire should be moved immediately to a safe place and laid out approximately what width between bales for individual attention?
A bale width
Should you remove the bands from the bales?
No, unless it is absolutely necessary