Chapter 11
Tactical Ventilation
Tactical Ventilation
Tactical ventilation is performed during fire attack to _______
help control the fire (page 493)
What is the part of the coupling that attaches to the hose?
Reduced water volume or pressure from hydrants can often be the result of:
greater demand than the system can provide (page 587)
What can happen if excess steam is produced inside the structure as a result of applying water on the fire?
Disruption of the thermal layering (page 670)
Which hazard are firefighters likely to encounter during overhaul?
Toxic gases (page 741)
This is the primary mode of heat transfer from one compartment to another in a structure fire.
Convection (page 497)
Which type of lugs are shallow holes drilled into booster hose couplings that require a special spanner wrench to tighten?
Recessed lugs (page 545)
Large volume hose streams created by appliances such as apparatus mounted deck guns are also known as:
Master stream devices (page 621)
Aiming a solid stream at the ceiling so the water will rain down and extinguish the fire is known as
indirect attack (page 678)
Rippled wallpaper and peeling paint are possible indications of what?
possible roof collapse (page 503)
The donut hose roll is advantageous because:
the firefighter controls both couplings (page 557)
What can firefighters do to help absorb nozzle reaction when operating a large hoseline?
Lean slightly forward (page 627)
On an OS&Y valve, when open where is the treaded portion in relation to the yoke?
The threaded portion of the screw is visible beyond the yoke (page 686)
Stop the flow of water from activated sprinkler heads (page 747)
This type of ventilation artificially raises the pressure inside the structure so that smoke and gases move toward lower-pressure openings more quickly
Positive pressure ventilation (page 507)
In which type of hose load does the hose lay on its edge in folds that lay next to each other?
Accordion load (page 561)
Lower water pressure at the nozzle can be caused by what?
Friction loss (page 627-628)
What type of alternative vehicle fuel is colorless, odorless, and has an invisible flame during the day?
Hydrogen (page 704)
Unusual glass or metal fragments at a fire scene may indicate what?
the presence of an incendiary device (page 762)
What is the purpose of a trench cut?
To create a defensible line ahead of the fire's spread (page 520)
Which preconnected hose load has hose folds that are laid into the hose bed in an S-shape?
Triple layer load (page 564)
Which type of nozzle is designed for use on fires in confined spaces and has a rotating head that distributes water in a circular pattern?
Cellar nozzle (page 618)
Most line of duty deaths at ground cover fires result from what?
heart failure (page 717)
If you handle, move, or gather evidence you:
become part of the chain of custody (page 763)