121.16 Flashcards
- How does a member check for roof stability?
Sound with a tool
- How would you warn members below that you are about to break a skylight?
Break a small amount of glass- pause- then continue, or use your portable radio
- What indications could you use to determine that you are over a main body of fire?
a. Bubbling Tar
b. Fire showing from a top floor
c. Dry spots
d. Melting snow
- What is a “Kerf” cut?
Small triangular observation hole
- Describe a salvage cover?
12’ x 18’ heavy duty plastic cover with grommets (24) on the sides and ends
- When throwing a coverall what should be done to expel air?
Pull down sharply
- When forming a catch all what and where are the folds made?
Ends are 24”, the Sides are 18” and the corners are folded in but not patted down
- When using two salvage covers to form a floor cover how is the seam made?
First cover is folded back on itself 8” then the next cover is married on top and then 2 folds of 4” each are made and then patted down (8-4-4)
- When shutting gas off by a curb gate valve where is it located and how do you shut it off?
Located between the curb and property line, turn clockwise until it resists usually 6 to 20 turns depending on the size of the valve
- If a fire valve cannot be opened at first what may you do to assist yourself in gaining access?
Tap around the edge while applying pressure in a counter clockwise direction
- Gas meters can be turn off how?
Turning stopcock so that the operating lug is crosswise to the pipe a ¼ turn
- What is the term for the chemical change that occurs to wood when it is heated?
Pyrolysis
- Fire-retardant wood is treated with __________.
Mineral salts
- What is the term for plastics that will melt under fire conditions?
Thermoplastic
- What is a commonly used structural material in a Type I building?
Protected steel
- The structural components of a Type _____ building will not burn.
Type II
- Which type of construction is heavy timber?
Type IV
- What is Type V construction?
Wood frame
- Which structural component is composed of relatively small and lightweight components arranged in a series of triangles?
Truss
- What are smoke, heat, and toxic gases called collectively?
Products of combustion
- What is the term for an open space within a wall where wires and pipes run?
Chase
- Within a room or space, where are the hottest gases found?
At the highest level
- What is the term for the transfer of heat through a circulating medium of liquid or gas?
Convection
- Which sort of air movement is likely on a hot day in an air-conditioned tall building?
Downdraft
- In ordinary construction, exterior walls are made of __________.
Noncombustible or limited-combustible materials
- In which construction type are there uninterrupted channels in the walls from foundation to attic?
Balloon frame
- Which hazard is of particular concern in a basement fire?
Smoke and heat venting up the stairs toward fire fighters
- What is the maximum wattage that an apparatus-mounted generator can produce?
Between 10,000 and 15,000 watts
- The output range for portable lights is generally __________ watts.
300 to 1500 watts
- What is the term for operations undertaken to limit or reduce property loss?
Salvage
- What is the term for operations undertaken to find and extinguish any remaining pockets of fire?
Overhaul
- What is the term for operations undertaken to find and extinguish any remaining pockets of fire?
Overhaul
- The lighting and power equipment used on an emergency scene generally operate at ________.
110-volt AC
- Which device interrupts the current when there is a problem with an electrical ground?
GFI
- It is permissible to remove SCBA during salvage operations after __________.
Atmosphere has been tested and found safe
- The first portable light should be set up __________.
At the entry point into the structure
