QUESTIONS AND SOLUTIONS GUARANTEE A+
✔✔Warning signs of back draft - ✔✔-pressurized smoke exiting small openings
-dense gray-yellow smoke
-confinement and excessive heat
-little or no visible flame
-smoke leaving the building in "puffs" (puffs out and then sucked back in)
-smoke stained windows
-muffled sounds
-sudden rapid inward movement of air when an opening is made.
✔✔5 classes of fire (Color, letter, shape, and type) - ✔✔-Green A Triangle, Common
combustibles
-Red B Square, Flammable liquids
-Blue C Circle, Live electrical
-Yellow D Star, Combustible metal
-Black K Hexagon, Cooking oils
✔✔Hazardous environments requiring the use of SCBA: - ✔✔A. Smoke.
B. Oxygen deficiency.
C. Elevated temperatures.
✔✔What are the two limitations of using an SCBA? - ✔✔A. Visibility.
B. Mobility.
✔✔What are the basic components of an SCBA? - ✔✔-Backpack
-Harness
-Air cylinder
-Regulator (First and second stage)
-High pressure hose
-Intermediate pressure hose
-Face piece
-Control module
✔✔When will the low air alarm sound on a SCBA - ✔✔when one quarter of the air
remains
✔✔Full protective equipment list - ✔✔A. Helmut
B. Protective Hood
C. Coat & Trousers
D. Gloves
E. Boots
F. Eye Protection
G. Hearing Protection
, H. SCBA (self-contained breathing apparatus)
I. PASS (personal alert safety system)
✔✔NFPA 1971 - ✔✔Standard on Protective Ensemble for Structural Firefighting
✔✔FOLDING/ATTIC LADDER - ✔✔hinged rungs so one beam rests on the other.
Usually 10 feet long.
✔✔ROOF LADDER - ✔✔straight ladder. Equipped with hooks on one end for anchoring
to ridge. Usually 12 - 24 feet long.
✔✔EXTENSION LADDER - ✔✔adjustable in length. Base or bed section with one or
more fly sections. Heavier than a single ladder. Range from 12 to 39 feet.
✔✔STRAIGHT/WALL LADDER - ✔✔non-adjustable, one section. Usually 12, 14, 16, 18
or 24 feet in length.
✔✔AERIAL LADDER DEVICES - ✔✔vehicle mounted. 50 - 135 feet in length.
✔✔Components of Ladders - ✔✔A. Base Section
B. Beam
C. Beam Bolts
✔✔Hose Rolls: - ✔✔A. Straight Roll
B. Donut Roll
C. Twin Donut Roll
D. Self-locking Twin Donut Roll
✔✔Hose Lay: - ✔✔A. Forward Hose Lay
B. Reverse Hose Lay
✔✔What does BLEVE stand for - ✔✔Boiling liquid expanding vapor explosion
✔✔Endothermic reaction - ✔✔Takes in heat, feels cold
✔✔Exothermic reaction - ✔✔Releases heat, you will feel warmth
✔✔Vapor density of 1.1 or greater - ✔✔will fall
✔✔Vader density of .9 or less - ✔✔will rise
✔✔what is the percentage of the different types of gasses at normal atmosphere
pressure - ✔✔21%Oxygen
78%nitrogen