Chapter 4 Flashcards
automatic chemical reaction that results to spontaneous combustion due to auto-ignition of organic materials.
Spontaneous heating
a form of static electricity: a natural current with a great magnitude, producing tremendous amperage and voltage.
Lightning
capable only of lightning combustible materials and it is longer in duration.
Hot bolt
capable of splintering a property or literally blowing apart an entire structure, produces electrical current with tremendous amperage and very high temperature and it is shorter in duration.
Cold bolt
concentrating the light on a combustible the light on a combustible material thereby igniting it.
Radiation of sunlight
it travels at surface level or below the surface
Ground fires
It burn over grass, weeds, grain, bush and shrubs.
Surface fires
are on the tops of trees and high bush
Crown fires
are started in advance of the heads by windows sparks on bits burning material.
Spot fires
how high surface fire occur on the surface of forest?
1.3 to 1.5 meters
ground fire also called as?
Underground or subsurface fires
it is a fire that are easiest to put out.
Surface fire
it is a fire that are considered the most dangerous fires, and they spread the fastest.
Crown fires
it is the point where the fireline is progressing faster
Head
the withdraw or upward portion of the fire.
Tail
all portions of the fire lone between the tail and the various heads and those slower burning areas between the heads .
Flanks
it consists of placing a unit on a specific section of the Fireline.
Sectional method
Its mission is to stop the progress of the fire, extinguishing it at the Fireline, and execute mop-up patrol work.
Sectional Method
This method is best used against a slow-moving fire.
Sectional method
It is the fastest and easiest method to use on a running fire.
One-licked Method
Are employed to burn back toward the advancing heads, thus creating a fast break and stopping the fire because of a lack of fuel.
Backfires
unusual or accidental connection between two points at different potentials.
Short Circuit
the production of sustained luminous electrical discharge between separated electrodes.
Arcing
an electric hazards that results when electrical current crosses the gap between two electrical conductors.
Arcing
Production of incandescent particles when two different potentials come in contact.
Sparking
it occurs during short circuits or welding operations.
Sparking
increased electrical energy flow or power voltage; sudden increase of electrical current resulting to burning of appliances.
Induced current
the increase of rising of amperage while electric current is flowing in a transmission line.
Overheating of electrical appliances
highly flammable chemicals that are used to facilities flame propagation.
Accelerant
the preparation and or gathering of combustible materials needed to start a fire.
Plant
the preparation of flammable substances in order to spread the fire.
Trailer
Classification of fires based on caused
- Natural
- Accidental
- Intentional
Classification of fires based on burning fuel
- Class A
- Class B
- Class C
- Class D
- Class K
Types of natural cover fires
- Ground fires
- Surface fires
- Crown fires
- Spot fires
Enumerate the parts of natural cover fire
- Head
- Tail
- Flanks
Methods for controlling and extinguishing various types of natural cover fires.
- Sectional method
- One-Licked method
- Fire breaks
- Backfires
