Chapter 4 Flashcards
A large metal structure attached over the entrance to a theater or store used to display signs is called _ A. Facade B. Marquee C. Canopy D. Cornice
B (Ch 4 Pg 25)
A parapet wall is a vertical cantilever beam.
a. Disagree
b. Agree
Agree
Which is more of a collapse danger — having a greater chance of failure?
A. Canopy
B. Marquee
A
A marquee is a cantilever beam connected to a parapet wall that can pull the facade wall down with it if the marquee collapses.
A. Agree or D. Disagree?
A - Agree (Ch 4 Pg 26)
A canopy has which of the following? A. It’s a cantilever beam B. It is lightweight C. It has many points of connection D. It is supported on one end only
A,B,C,D (Ch 4 Pg 26)
Most common type of masonry wall failure at fires A. 90 degree angle collapse B. Curtain fall C. Inward-Outward collapse D. Lean to Collapse
A 90 degree (“Anthony MASON played b-ball in the 90’s”)
Collapse of Brick Veneer, brick cavity, or masonry backed stone wall often collapse
A. 90 degree angle collapse
B. Curtain fall
C. Inward/Outward
B
Choose incorrect
A. Marquee beam goes through a parapet wall and is connected to roof or fl beams behind a facade
B. Canopy- cloth, wood or metal covering over a bldg entrance designed to protect people from weather
C. Marquee is more a collapse danger than a canopy
D. Cornice is a decorative horizontal overhang, projecting outward along the top wall of a bldg. It’s cantilevered structure that can burn and spread fire
C Canopy more dangerous
Dunn uses the word facade as a general term for the front of the building, and may include a parapet wall, a marquee, a canopy, and a cornice. Which of the following contributes to the spread of fire A: Cornice B: Canopy C: Marquee D: Parapet
A- FFs should be concerned with horizontal spread from one end of the bldg to the other via the cornice
B- Canopy has many connection points and has a greater chance of collapse than a marquee. The most dangerous canopy is a metal or wood shed suspended over a truck loading area covered with tar paper
C- Marquee beam goes through a parapet wall and is connected to roof or floor beams behind the façade
D- a parapet wall often supports a marquee, canopy, or cornice. This is an unstable structure supporting an unstable structure
Ch 4
T/F Collapse of a masonry wall Danger Zone:
Equal to the height of the wall and may be increased to 1 ½ or twice the height of the wall if a truss roof triggers the wall collapse, an explosion triggers the wall collapse, or if ordered by the IC
True
When a fire officer establishes a safe distance between an unstable wall and firefighters, he must expect the worst, an?
a. Lean to collapse
b. Curtain fall collapse
c. 90-degree angle collapse
d. Inward-Outward collapse
C 90-degree angle collapse
