BC chapter 7 Flashcards
1
Q
Dimensional lumber is available in lengths ?
A
from 4-8 feet in 2- foot increments and standard tensile strength of wood is about 700 psi
2
Q
laminated wood beams
A
may have depths ranging from 3 to 75 inches and lengths up to 100 feet
3
Q
oriented strand board (OSB)
A
uses long ,strand -like wood particles compressed and glued into three to five layers
4
Q
Fire stopping or fire blocking
A
- 2 inch nominal wood
- gypsum board
- cement fiber board
- batts or blankets of mineral wool,glass fiber or other approved materials
5
Q
firestopping locations
A
- within stud walls at the ceiling and floor levels
- at the connection points between vertical stud wall spaces and horizontal spaces
- between stair stringers
- behind fascia and other architectural features
6
Q
typical means of adding or increasing fire resistance through
A
the use of 5/8 gypsum board attached to the studs and ceiling joists
7
Q
Pyrolysis
A
is the thermal decomposition of wood and begins at the temperture somewhere below 392 degrees farenhieght
8
Q
heat of combustion
A
fuel is the total amount of thermal energy that can be released if the fuel is completely burned
