Quiz 7
Which of the following statements regarding the significant off the surface-to-mass ration of wood in fire fighting is MOST accurate?
A greater surface area for a given mass of wood permits a more rapid combining of fuel and air for combustion
Which of the following is an identifiable feature of heavy-timber framing?
Internal support columns are not less than 8x8 inches.
Which of the following statements BEST describes balloon-frame construction?
The exterior wall vertical studs are continuous from the foundation to the roof in balloon-frame construction
What is a primary safety limitation of I-joists that are made of engineered wood?
They have the possibility of swift collapse under fire conditions
Which statement about the fire-retardant treatment of wood is MOST accurate?
Treated wood resist ignition and has higher fire endurance
Which of the following statements regarding brick or stone veneered walls in wood-frame buildings is MOST accurate?
Under fire conditions, brick or stone veneer protects the wood frame from external exposures
Which of the following are inherent I =n lightweight and engineered construction and provide paths for the rapid spread of fire through a structure?
Void spaces
After extinguishing a fire on the first floor of a two-story balloon-frame house, the BEST action for crews is to immediately open the walls and check for fire in the:
Basement, second floor, attic
One of the problem firefighters face in wood-frame buildings with exterior brick or stone veneer is:
Difficulty in visually determining wheather the brick or stone work is structural or aesthetic
Which of the following is a disadvantage of engineered wood products?
Engineered wood products can experience quick and unpredicted failure in fire conditions
What do building codes require in order to prevent the rapid spread of fire through concealed spaces within combustible construction?
Firestopping
A typical means of adding or increasing fire resistance of a wood frame building is through the use of 5/8 inch ______ attached to the studs and ceiling joists.
Gypsum board
Which of the following statements regarding the structural endurance of wood under fire conditions is MOST accurate?
Heavy timber display greater structural endurance under fire conditions than light-frame construction.
Wood that is allowed to burn through will gradually lose____ until it can no longer support the applied loads.
Mass and stability
Which of the following products used for sheathing and subflooring consists of three to five layers of long, strand-like wood particles compressed and glued together?
Oriented strand board
Two types of light-wood framing are balloon framing and:
Platform framing
The thermal decomposition of wood that begins at a temperature somewhat below approximately 392F is known as:
Pyrolysis
As wood dries it begins to:
Shrink in size and increase in strength
Engineered wood products have many advantages including:
Strength and cost efficiency
Which of the following has the highest potential for sudden, catastrophic structural failure?
Structures with light and engineered materials
