Chapter 11 - Elevated Streams Flashcards
When the wind is blowing across the face of the fire building so that nearby buildings
are exposed, the apparatus aerial device should be spotted:
a. Upwind just beyond the base of the flames
b. Downwind well beyond the flame front
c. In front of the exposure building toward the fire building side
d. Between the fire and exposure buildings
Between the fire and exposure buildings.
When confronted with a fire in an open area with high wind conditions, elevated master streams
a. Should not be used
b. Can be used, but should be placed at the flanks of the fire
c. Can be used if placed on the downwind side well ahead of the flame front
d. Can be used if placed on the upwind side
b. Can be used, but should be placed at the flanks of the fire.
An elevated stream is being used to cool a fire impinging on a horizontal tank containing flammable liquids. The aerial device should not be placed at the \_\_\_\_\_ of a horizontal tank. a. Ends b. Sides c. Windward side d. Leeward side
a. Ends.
A 2-inch solid-bore nozzle will flow \_\_\_\_ gpm at 80 psi nozzle pressure. a. 500 b. 750 c. 1,000 d. 1,250
c. 1,000
When using a spray nozzle to attack a fire inside a structure, place the nozzle at the approximate center of the window on a ____ pattern.
a. Straight-stream
b. 30-degree angle
c. 60-degree angle
d. Full fog
b. 30-degree angle
If the fog pattern on a spray nozzle is being adversely affected by wind, a ____ pattern should be used and the nozzle moved closer to the window.
a. 60-degree or small angle
b. 30-degree or straight angle
c. Straight stream
d. When wind is a significant factor, always discontinue the use of the spray nozzle and attach the solid -bore nozzle
c. Straight stream.
Elevated streams should continue to operate until _____ is no longer visible.
a. Fire
b. White smoke
c. Steam
d. The stream should continue to operate as long as any of the above are visible
d. The stream should continue to operate as long as any of the above are visible
When fire first breaks through the roof and is visible at the roof opening
a. Operate a solid stream nozzle directly into the opening
b. Operate a spray nozzle on full vapor pattern directly into the opening
c. Operate a spray nozzle on straight stream pattern directly into the opening
d. Do not operate an elevated stream into the roof opening
d. Do not operate an elevated stream into the roof opening.
Elevated master streams should be directed into a building during
a. Defensive operations only
b. Offensive operations only
c. Offensive operations, but not into areas where firefighters are working
d. Combination of offensive/defensive operations
a. Defensive operations only.
Fog streams are _____ effective than/as solid streams for exposure protection
a. Equally
b. Less
c. More
d. Fog streams are more efective on frame construction, and solid streams are more effective on masonry construction
c. More
When applying water to an exposure building, it is best to
a. Apply water directly to the exposure building so that it washes down the side
b. Apply water directly to the exposure building moving the stream in a rapid sequence of motions from side to side and up and down
c. Discharge water in the form of a water curtain between the fire building and exposure building
d. It is always best to attack the fire building
a. Apply water directly to the exposure building so that it washes down the side.
An aerial ladder should not be _____ when a fire fighter is working on the ladder.
a. Rotated
b. Lowered or raised
c. Extended or retracted
d. Moved in any way
a. Rotated