Chapter 3 Building Construction: Firefighting Problems and Structural Hazards

Question 1

Fire resistive construction, the major fire problem (fire spread)

Answer 1

HVAC, the entire fire resistant building may be interconnected by a network of holes concealed spaces and void through which flame and smoke can spread

Question 2

noncombustible/ limited combustible construction

fire spread

Answer 2

the fire problem is the flat combustible asphalt roof deck covering, weight of roof deck should not exceed 12 to 15 pounds per hundred square feet of roof area. check roof after fire to make sure it hasn’t ignited

Question 3

ordinary construction(fire spread)

Answer 3

major fire problem is the spread of fire and smoke through concealed spaces this construction type has many concealed Spaces voids and poke through openings… these concealed spaces contain large amounts of combustible material (wood)

Question 4

cocklofts to be subdivided into smaller areas no more than___ft

Answer 4

3000

Question 5

heavy timber construction (fire spread)

Answer 5

major fire problem is the large wooden interior timber framework, radiant heat can ignite 80 feet away

Question 6

wood frame construction (fire spread)

Answer 6

major fire problem: the wooden outside walls, combustible exterior walls

Question 7

five reasons the fire resistive rating has no bearing on collapse

Answer 7

1. actual fire may be more intense than test fire
2. small-scale sample cannot predict full scale performance
3. bearing wall, column or girder may collapse
4. fire may burn undetected for longer than test period
5. inferior workmanship

Question 8

by resistive construction collapse hazard

Answer 8

best record, collapse danger lies in concrete, sagging floors and spalling

Question 9

noncombustible/ limited combustible construction

collapse hazard

Answer 9

roof cave-in, the collapsing material, and the unprotected steel open bar joist.

Question 10

heavy timber construction, collapse hazard

Answer 10

falling masonry walls, doesn’t happen in early stages of fire…once going its hot and fast burning

Question 11

and wood frame and wood frame construction which walls are the bearing walls

Answer 11

sidewalls, front and back walls are usually nonbearing

Question 12

NFPA standard on building construction

Answer 12

NFPA 220

Question 13

ordinary construction, collapse hazard

Answer 13

parapet wall

Question 14

wood frame construction, collapse hazard

Answer 14

the combustible bearing wall constructed of 2 x 4 wood studs