Chapter 17 Flashcards
Initial response apparatus
Positioned by sops
Later arriving apparatus
Positioned by IC
Apparatus placement is based on
Preincident planning, overhead obstructions, factors influencing functionality
When rescuing in a building 4 stories or less
Aerial is curbside (outside)
Rescuing in a building 5 stories and up
Aerial on inside closest to building
When two aerials respond
First takes front second takes rear or side
Single aerial responds
Strategically positioned based on situation
Finding max stability
Level ground, can operate at a 5% grade, use stabilizers, type of ground
Best climbing angle
70 is optimal, 90 off the side is the hardest
Adequate extension
Extra room always
Distance consistent with
Ladder reach, scene conditions
Stress on aerial
Long extensions at low angles, large load, jerky movements, wind
How much water can an aerial push
1000-1500 gpm
Spotting
Positioning of aerial
Back tire lift
1-1 1/2 inches
Skimmed surfaces
Thin layer of concrete
Uphill positioning
Rear tires off ground equals less resistance to sliding downhill
Rear compartments more difficult to reach
Down hill positioning
Easier to reach ground with platform off rear, more likely that front tires will be lifted off the ground
Facing uphill
Increase Ms capability and stability
Facing downhill
Capability decrease
Jackknifing
Raise or lower only one side of stabilizers
Downed power line
Avoid step potential by jumping off with two feet and shuffling
Articulating platforms
Have two or more booms
Most stable when
Operating directly over rear or front
