10 Exam Flashcards
(94 cards)
Know what a three dimensional fire is
Situation in which the burning liquid fuel is dripping, spraying, or flowing over the edges of a container
How do we perform a combination attack?
Is performed in two stages, beginning with an indirect attack and continuing with a direct attack
Class A foams are formulated to be mixed with water in ratios from
0.1 to 1.0
Class B foam is used for which type of fire?
Flammable liquids
How is foam proportioned in most portable extinguishers?
Premixing
Medium expansion foam max ratio of ___ to 1
200
To batch mix 3% foam into a 500 gallon booster tank, you would need to add ____ of foam concentrate to the tank
15
Which is a benefit of class A foam?
Reduces the surface tension of water
What is the advantage of compressed air foam?
Adheres to most surfaces
Attribute of a wet class A foam?
Improved fuel penetrating properties
Which type of foam is made from animal by products?
Protein
Which type of foam proportion-er relies on the venturi effect?
Eductor
During extrication for a driver in a frontal MVA, which action should be considered a last resort?
Displace the seat with a powered hydraulic tool
How are most windshields affixed in place?
Glue
What is laminated glass?
A thin layer of plastic sandwiched between two layers of glass
What must occur before the ram and high lift jack can be removed in a dash displacement?
The sill must be cribbed to hold it in position
When doing a dash displacement, which tool is used to push the dash forward?
Hydraulic ram
Where should rescuers begin their cuts on a windshield
Top center
Which action should be taken first in a dash displacement?
Remove the front doors
Which action should be taken if a vehicle has an undeployed airbag following an MVA?
Disconnect the battery
Which item is commonly used to stabilize a vehicle’s suspension system?
Step chocks
Which type of glass is the rear window of a vehicle
Tempered
Equipment is tagged in the ____ zone
Cold
How does exposure to natural gas affect the body?
Natural gas acts as an asphyxiate