chapter 4 Flashcards
Which of the following is a false statement about high expansion foam
It will achieve complete knockdown
how many gallons of concentrate per 1,000 gallons of water are used in the commercial compressed air foam system
3 to 6
Which of the following is not a characteristic that is considered when selecting homeliness for a residential fire
Large open fire areas
What should be the purpose of the hosteling placement when dealing with fire in one story commercial buildings
Cut it off
What angle of application is possible with the bent tip
90 degree
How many floor can be stretched with one length of hose line in an older building with a wide stairwell from top to bottom
5
Which of the following things does the water part of the foam additive perform on the fire
Cools the fuel faster than foam
How many spare lengths of hose should the nozzle team show up with to ensure that the correct amount of hose is available
1 to 2
What can be used to easily store and deploy 100 feet of nylon rope
1 1/2 gallon bleach bottle
What is the maximum number of bends a hosteling can go through before a member must be positioned to fee the line
1
Which of the following is most effective when fighting a flammable liquid fire in a tank truck
Bent tip applicator
What must be accomplished when combating a Class A fire
Cool fuel until it stops giving off flammable vapors
What is the maximum number of 1 1/2 inch hose lengths that should be reconnected as a rule of thumb to flow 125 gpm
4
Which design should all nozzles be to ensure more flexibility when a change in nozzle is needed during operations
Break apart
Which of the following statements gives an overview of the engine company’s job at the fire incident
Putting the proper size hosteling at the required place in the least possible time with the most efficient use of personnel
When fire is in a frame construction building what is the thing that protects an exposure
Having distance between the buildings
Which of the following factors determine the length of hose line needed
Building’s height
What is the minimum size hose line needed when the fire has passed the flashover stage in a residence
1 1/2 inch
What should the placement of the hosteling in a multistory building be
Interior staircases
What was added to the water to allow for a larger gallon per minute flow from a smaller hose line
Polyox
Who is the best person to evaluate the stream
Nozzleman
How many paces should the nozzle man step before allowing the next member to take his section
2 to 3
What allows for the hose line to be stretched in a rapid manner
Number of personnel
What is the worst thing that can be done when there is a major fire in a commercial building
Stretch short
Which of the following is a circumstance that members should enter a high expansion blanket
The entry is needed for fire containment reason and the structural integrity is assured
Where should the hose be stretched when bringing it up the outside of the building
Floor below the fire floor
Which part of the nozzle is removed to convert the fog spray to a solid stream nozzle
Tip
Which of the following will result when each arriving company has their own commander
Greater losses
How many BTU’s are produced when a pound of styrene foam burns
18,000
Which part of the hose should be exposed to allow for operation in the larger buildings that are encountered
Male end
What is the reaching radius of the bresnan distributor
15 to 20 feet
What is used to regulate the size of the discharge opening in an automatic nozzle
Spring
What is considered the maximum size commercial building that a 2 1/2 inch hose line will be effective
20 x 75 ft
Which type of building and situation would cal for an attack from the unburned side of the fire
Vacant building
When should the situation be evaluated in relation to pulling the hoseline
Before
Which is the rule of thumb that should be followed when using a nozzle on the hoseline
No nozzle should have an opening greater than half the diameter of its supply.
When should a hose line be carried charges
Below grade fires
What is the minimum amount of hose that should be stretched when the building is 200x200ft
400 feet
How many lengths of hosteling should be stretched for each flight of stairs
1
What should be done the a hose line must pass through a doorway
Chock the door
Which of the following is not a reason for using the larger hose line in commercial occupancies
Floor areas require lighter hitting streams
Which of the following is the first thing to remember when combating a fire
Protect life
Which of the following would be a greater threat in terms of fire extension when a fire is venting from a window in a brick structure
A window in line with it and slightly higher
Which of the following things should not be done with the aerial device
As a standpipe
Which of the following are now used mostly on ships
Applicator pipes
What should be reduced to increase the striking power
Nozzle opening
Which can be used to extinguish a fire under the hood of vehicle when it cannot be opened
Piercing nozzle
What are the two criteria that must be met for a hosteling attack to be effective
Having the correct amount of water and placing the water at the seat of the fire
What is the ideal pressure of the constant gallonage fog nozzle
100
Which type of nozzle delivers a fixed, cone shaped spray pattern
Fog
What can de done when there is an elevator that has been added within the stairwell of an older building
Haul the hosteling via rope up the outside of the building
What pressure can the low pressure fog nozzle deliver a suitable stream
50 to 75
What is the primary function of high expansion foam
Fill an enclosure
What needs tone available when high expansion foam is being used
Ventilation
Which of the following statements gives an overview of the engine company job at the fire incident
Putting the proper size hose line at the required place in the least possible time with the most efficient use of personnel
Which expansion ratio is created when an air aspirating nozzle is used with Class A foam
7:1
What should the placement of the hose line in a multistory building be
Interior staircase
What does it mean to say that a fog nozzle is a constant gallonage type
As long as the pressure remains constant the flow is constant in any spray pattern
What is the reach of the stream created by the cellar nozzle
50 feet
Which of the following is the first thing to remember when combating fire
Protect life
Wha is used to regulate the amount of water flowing past the opening in a hoseline
Shutoff portion
What size hose line bas been found to be effective on multistory apartment buildings
1 3/4 inch
Which of the following is Not true regarding a hose line that has been trapped in a doorway
Props the door open
How many people are needed to move a 2 1/2 inch hotline fitted with a 1 1/4 inch tip
3
Which of the following is considered the most important element when laying hoseling
Placement
Which of the following is not a benefit from protecting the staircases
Conceal the severity of the fire from the occupants
Which type of nozzle allows for a wide range of patterns to be chosen simply by turning the outer barrel of the nozzle
Variable pattern, peripheral fog
