MP 202.12E Water Supply and Fire Stream Management Flashcards
What should every first due company approaching a scene with evidence of a working fire do?
Lay their own supply line
What are the 3 exceptions to laying your own supply line when approaching a scene with evidence of a working fire?
- Obvious critical rescue requiring a full crew
- Unsure of actual fire location in multi-unit building complex
- Hydrant within fifty feet of the fire (handjack)
When should a second line be considered?
on any working incident
Where should a line be laid?
on the same side of the roadway as the hydrant is and cross over at the fire if necessary
Why is it important to lay a line slowly?
Faster speeds result in more hose on the roadway
What are some advantages that slower speeds provide in regards to laying a line? (3)
- Reduces the risk of striking pedestrians or vehicles or firefighters
- Provides time for the Company Officer to size-up and evaluate critical fireground factors
- Provides time for the Engineer to appropriately spot the apparatus
How does staging key pumpers on hydrants enhance fireground safety? (3)
- Ensures an uninterrupted water supply
- Provides volume when needed
- Ability to pump water through the forward pumper in the event of mechanical failure
On First Alarm Assignments, what should be done before pumped water is considered?
companies should lay their own supply line to cover all critical tactical positions
Typically, when is pumped water needed?
late in the first alarm assignment or as the second alarm companies arrive
What must be taken into account when establishing supply lines for master stream operations? (3)
- diameter
- length of line
- the anticipated volume of water for the fire
Whenever a water supply is established to operate a ladder pipe, what MUST be done between the key pump at the hydrant and the forward pump at the ladder?
two supply lines MUST be laid between them
What is the main objective of the attack hose line choice?
is to provide enough GPM flow to overcome the volume of fire being produced, or an adequate flow to effectively cool and protect exposures
When operating in the offensive attack mode, where should the first stream be placed?
Between the fire and persons endangered by it
When no life is endangered, where should the first stream be placed when operating in offensive attack mode?
Between the fire and the most severe exposure or unburned area
Where should the second hose line be placed when operating in the offensive attack mode?
deployed to protect secondary means of egress
