Engine Company Fire Ground OPS Flashcards
Driver test material
NFPA 1410
Standard on training for initial emergency scene operations,
What are the 3 major tactical priorities on the fire ground
Life safety
Extinguishment
Property conservation
Convection
the travel of heat through the motion of heated matter.
through smoke, hot air, heated gases.
Radiation
- travel of heat through space, no material substance is required. Travels though the same way as light ( straight lines)
- (radiation is the greatest cause of exposure fires, spreading fire.)
Conduction
the travel of heat through a solid body. ex: pipe
A 100 ft setion of steel beam will expand how may inches when heated to 1000 degrees?
9 inches
what are the 4 ways that heat travels
- conduction
- convection
- radiation
- direct flame contact
NFPA 1901
standard for automotive fire apparatus
What are the minimum standards for pumps and water tanks
- pump capacity no less than 750 gallons
- water tank at least 300 gallons
Preconnected hose lines of 1 3/4 should not exceed how many ft?
250 ft because of excessive friction losses.
NFPA 1901 minimum hose lengths
1 3/4
2 1/2 or larger
Soft suction or hard suction
400 ft
800 ft
15 ft or 20ft
Hard suction hose sizes
2 1/2 to 6 inches
double male and double female
- used when a pumper that is set up for a forward lay uses a reverse lay
- NFPA 1901 requires one double female 2 1/2 and 1 double male 2 1/2
Ground ladder minimum according to 1901
- one straight ladder with roof hooks
- one extension ladder
- one attic ladder
what are the 4 types of hose lays
- forward lay using a charged supply line ( most desirable)
- forward lay using a uncharged supply line
- direct to fire/ no line laid
- reverse lay
the first arriving pumper should pull past the fire building to accomplish what?
- allows officer to see three sides of the building for size up
- leaves room for the ladder truck in front of the building
Most victims of fire are overcome by?
Carbon monoxide
Three factors influence the movement of water at fires are?
- water source
- pumper
- hose
what are the four possible sources of water at the fire ground?
- water main systems
- static water sources
- apparatus water tanks
- mobile water supply apparatus (tankers/tenders)
If an increase in engine pump speed (rpm) is not accompanied in discharge pressure
the pump has reached true capacity or the limit of the water supply.
A LDH has a diameter of
3 1/2 or larger
NFPA 1961
standard for fire hose
Direct Attack
Indirect Attack
a straight or solid hose stream is used to deliver water onto the base of the fire
directed at the ceiling of the intensely heated area in order to create steam. To prevent flashover from removing heat from the upper atmosphere
If a fire is smoldering what should be done first
ventilation to prevent a backdraft.
Backup lines
- are used to back up the attack lines
- should have greater reach and deliver more water than initial attack lines.
In a commercial building, concealed vertical shafts carrying building utilities are most likely to be found
Toward the rear of the building
Basement fires should be vented
in the basement and the first floor when ever possible
To be most effective in fire control master streams should
be moved horizontally back and fourth across the fire area and vertically side to side