Wood Construcon Module Quiz- FIRE 4

Wood that is allowed to burn through will gradually lose ____ until it can no longer support the applied loads. A. mass and stability B. heat of combustion C. surface-to-mass ratio D. manufactured components

A. mass and stability

Engineered wood products have many advantages including: A. strength and cost efficiency. B. the ability to transmit heat easily. C. slow and predictable failure in fire conditions. D. being fabricated from a nonrenewable resource.

A. strength and cost efficiency

Solid lumber includes dimensional lumber, boards, and: A. timbers. B. laminated wood. C. sheets of veneer. D. processed lumber.

A.timbers.

Which of the following structures would MOST likely be required to utilize ignition-resistant construction? A. A steel frame structure in the middle of an urban area B. A light wood-frame structure near a rustic wildland area C. A concrete frame structure in a residential neighborhood D. A steel frame structure that is greater than three stories high

B. A light wood-frame structure near a rustic wildland area

Which of the following is a layer of material that is installed outside of the studs to provide structural stability, insulation, and an underlayer for siding? A. Aluminum B. Sheathing C. Building wrap D. Synthetic stucco

B. Sheathing

Which statement about the fire-retardant treatment of wood is MOST accurate? A. Fire-retardant treatment increases wood strength. B. Treated wood resists ignition and has higher fire endurance. C. Surface coating is used primarily to increase the flame spread rating of wood. D. Wood that has received a fire-retardant treatment is classified as fire-resistive.

B. Treated wood resists ignition and has higher fire endurance

Structural insulated panels have: A. a very low R-value. B. a plastic foam core between wood panels. C. low fire resistance when a foam core is used. D. requirements for fabrication that limit its widespread use in building design.

B. a plastic foam core between wood panels.

Which of the following is a wood-like product made from wood fiber and polyvinylchloride (PVC)? Waferboard Glulam beams Structural composite lumber Thermoplastic composite lumber

Thermoplastic composite lumber

In modern construction, heavy-timber trusses are used mainly for their: cost. integrity. strength. appearance.

appearance

One of the problems firefighters face in wood-frame buildings with exterior brick or stone veneer is that veneers are tied to the wood frame wall at intervals of 16 inches (400 mm). difficulty in visually determining whether the brick or stone work is structural or aesthetic. that fire behavior is significantly impacted and thermal insulating values are reduced. under fire conditions the external layer of stone or brick is ineffective in protecting the wood frame from external exposure.

difficulty in visually determining whether the brick or stone work is structural or aesthetic. Correct!

A typical means of adding or increasing fire resistance of a wood frame building is through the use of 5/8 inch (15.5 mm) ____ attached to the studs and ceiling joists plywood metal panel stone veneer gypsum board

gypsum board

Two types of light-wood framing are balloon framing and: box framing. half timbering. platform framing. post and beam framing.

platform framing.

The thermal decomposition of wood that begins at a temperature somewhere below approximately 392°F (200°C) is known as: ignition. pyrolysis. the burning point. the heat of combustion.

pyrolysis

Wood I-beams are frequently used for floor joists and: panels. rafters. framing. bearing walls.

rafters.

Light wood framing uses nominal lumber that is ____ at its smallest dimension. A. one inch (25 mm) B. two inches (50 mm) C. three inches (75 mm) D. four inches (100 mm)

B. two inches (50 mm)

Firestopping is required by building codes in which of the following locations? A. In brick and masonry walls B. Around door frames and window openings C. Within stud walls at the ceiling and floor levels D. Underneath the outermost layer of a fire-retardant coating

C. Within stud walls at the ceiling and floor levels

Which of the following is a disadvantage of engineered wood products? A. Engineered wood products are more costly to manufacture. B. Engineered wood products are typically weaker than solid lumber. C. Engineered wood products retain higher moisture content than solid lumber. D. Engineered wood products can experience quick and unpredictable failure in fire conditions.

D. Engineered wood products can experience quick and unpredictable failure in fire conditions.

What is a disadvantage of using wood in construction? A. Wood is a nonrenewable resource. B. The production of wood is expensive. C. Wood is heavier than most other building materials. D. Weather conditions can affect the size and shape of wood.

D. Weather conditions can affect the size and shape of wood

What do building codes require in order to prevent the rapid spread of fire through concealed spaces within combustible construction? Sheathing Firestopping Polyurethane Thermoplastic

Firestopping

Which of the following statements regarding the structural endurance of wood under fire conditions is MOST accurate? Fire resistance of heavy-timber columns remains untested. The structural integrity of wood members remains the same over time under fire conditions. Heavy timbers display greater structural endurance under fire conditions than light-frame construction. Light-frame construction displays greater structural endurance under fire conditions than heavy timbers.

Heavy timbers display greater structural endurance under fire conditions than light-frame construction

Which of the following has the highest potential for sudden, catastrophic structural failure? Structures with mill construction Structures with post and beam framing Structures with heavy timber construction Structures with light and engineered materials

Structures with light and engineered materials