Deck 5

Question 1

The major firefighting problem in Fire-Resistive Construction is …

Answer 1

The Central Air Conditioning System

Question 2

What do Fire Dampers stop …

Answer 2

flame spread but does not stop the spread of smoke

Question 3

During any fire in a modern building the IC should order the bldg management to …

Answer 3

shut the off the central air system serving the living spaces and public hallways.

Question 4

FF cannot extinguish fires over how many square feet?

Answer 4

5000

Question 5

What is the major firefighting problem in Non-Combustible/Limited Combustible Construction?

Answer 5

the flat, steel deck roof covering hat can ignite during a fire

Question 6

Regarding non-combustible/limited combustible construction, as soon as the fire is darkened down what should a FF do

Answer 6

check the roof covering above the the fluted metal deck for fire extension. As heat may have conducted thru the metal and ignited the combustible roof covering.

Question 7

Regarding non-combustible/limited combustible construction, as soon as the fire is extinguished what should a FF do?

Answer 7

The IC should order a company to the roof to check the the combustible asphalt roof covering

Question 8

What is the major collapse problem in non-Combustible/Limited Combustible Construction?

Answer 8

roof cave in from the use of open web steel bar joist. The collapsing material is the UNprotected open web bar joist.

Question 9

What is the main advantage of the lightweight steel roof support

Answer 9

the non combustibility, the bar joist does not add fuel to the fire.

Question 10

Metal roofs are not designed to support FF’s during a fire, what type of bldg prohibits open bar joist construction?

Answer 10

Hi Rise commercial bldgs since 9/11.

Question 11

What is the major fire problem in Ordinary “Brick & Joist” Construction?

Answer 11

the fire and smoke spread throughout concealed spaces.

Question 12

Regarding Brick and Joist bldgs what two tactics does Dunn suggest?

Answer 12

1. As soon as possible after a fire is extinguished, a FF must be directed to open the ceiling above the fire & nearby wall to examine for fire spread within concealed spaces.2. If fire is discovered in a concealed space, the cockloft space above the top floor must be checked for fire before leaving the scene.

Question 13

What is The major fire problem in Heavy Timber Construction

Answer 13

The large wooden interior timber framework.

Question 14

The major firefighting problem in Wood-Frame Construction is

Answer 14

the combustible outside wooden walls.

Question 15

The major collapse hazard in Wood-Frame Construction is

Answer 15

the combustible bearing walls composed of 2 x 4 inch studs.

Question 16

There are three ways a masonry exterior building wall can collapse:the most common type of masonry wall failure at fires is

Answer 16

90-degree angle, curtain fall, inward-outward 90-degree angle is the most common.