Concrete and Following Statements

1. Which of the following statements regarding fire-retardant treatment of wood is MOST accurate?
A. the fire retardant is intended to occur at temperatures lower than those developed in fires.
B. the fire retardant is intended to occur at temperatures higher than those developed in fires
C. all chemicals used as fire retardants can be used for exterior applications
D. fire retardant treatment of wood increases its strength

2. Most fire-retardant chemicals operate by:
A. accelerating the absorption of moisture toe extinguish flame spread
B. combining chemicals with air to eliminate the air supply
C. accelerating the formation of charring in the wood
D. increasing the formation of volatile gases
3. Wood structures are usually not built taller than __ stories because of economical considerations.
A. 1
B. 3
C. 4
D. 5
4. From a fire fighting standpoint, what is the advantage of the exposed wood framing in heavy-timber and post-and-beam construction?
A. visibility of structural deterioration
B. easier reapplication of fire-proofing materials
C. higher combustion temperatures of exposed surfaces
D. elimination of combustible voids
5. A typical means of achieving a one-hour fire resistance for Type V-A construction is to attach a __ inch gypsum board attached to the studs and ceiling joists.
A. 1/4
B. 1/2
C. 3/8
D. 5/8
6. Which of the following statements regarding impact-resistant gypsum board is MOST accurate?
A. both regular and impact-resistance gypsum board is easily penetrated with hand tools
B. impact-resistant gypsum board is produced with fiberglass mesh
C, impact-resistant gypsum board is normally used in single-dwelling occupancies
D. impact-resistant gypsum board is easily differentiated from regular gypsum board
7. Which of the following is MOST likely to contribute to rapid structural failure in a wood-frame dwelling?
A. gypsum board interior walls
B. concrete basement floor
C. plywood subfloor covered with carpet
D.