Fire Suppression Flashcards
1
Q
Fire Flow Calculation Formula
A
(L)(W)(H)/100 multiplied by % of structure involved
2
Q
2 Criteria For Success
A
- Amount of water discharged is of sufficient volume
2. Water must actually reach the seat of the fire
3
Q
Pre-Entry Steps
A
- Safety Check
- Check heat on door
- Set pattern
- Bleed nozzle
- Stay low to side of door
- Same side of hose
- Try before you pry
- Open door slowly
- Chock door after entry
4
Q
How much oil in average passenger car tire?
A
-2.5 gallons
5
Q
How far can shock absorbers fly? Bumpers?
A
- 20’
- 25’
6
Q
Vehicle Precautions
A
- Only firefighters within 50’
- Approach uphill/upwind
- Sweep bottom of vehicle
- Extinguish fire while advancing
- Foam should be used to prevent re-ignition
7
Q
Angle of attack for fire under hood
A
-45 degrees
8
Q
Angle of attack for fire in passenger compartment
A
-90 degrees
9
Q
Propane Expansion Ratio
A
-270:1
10
Q
Propane exists as a gas at > (x) degrees?
A
-Negative 44 degrees Fahrenheit
11
Q
Additive to give propane odor?
A
-Mercaptan
12
Q
Flammable gas suppression
A
- Shut off main discharge valve
- Two intersecting 1 3/4” lines set on a fog pattern, team leader in middle
- Once at tank, team leader reaches in and closes valve
13
Q
Compressed Natural Gas Flammable Range
A
- 5-15%
14
Q
Liquid Petroleum Gas Flammable range
A
- 1.5-15%
15
Q
3 Parts of Proper Advance
A
- Select
- Stretch
- Position
