| 1. |
Today, a wood framed residential building can be typically constructed in one of two ways:
- conventionally framed, constructed from wall panels built in a factory, and assembled on the jobsite, or
- built in a factory and brought to a jobsite and placed on a site-built foundation.
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True |
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False |
| 2. |
In post-and-beam framing, structural columns support horizontalmembers. Post-and-beam framing is typified by the use of |
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large timber members |
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Large steel members |
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Large concrete columns and members |
| 3. |
Traditional balloon framing consists of closely spaced light vertical structural members that extend from the foundation sill to the roof plates. |
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True |
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False |
| 4. |
Platform framing is the modern adaptation of balloon framing, whereby vertical members extend
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from the floor to the ceiling of each story. |
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from the foundation to the ceiling of each story. |
| 5. |
Engineered wood products such as wood trusses, wood I-joists, laminated veneer lumber (LVL), plywood, oriented strand board (OSB), glue- laminated lumber, and parallel strand lumber (PSL). OSB structural panels (pressed wood particles) are rapidly displacing plywood as a favored product for wall, floor, and roof sheathing. Wood I-joists are now used in 54 percent of the total framed floor area in all new homes. |
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True |
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False |
| 6. |
Figure 1.4 shows a typical |
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Cold formed steel framing |
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Ballon frame wood construction |
| 7. |
Most of the U.S. population lives in areas that are covered by legally enforceable building codes that govern the design and construction of buildings, including residential dwellings. Although building codes are legally a governmental police power, most states allow local political jurisdictions to adopt or modify building codes to suit their special needs or, in a few cases, to write their own code. Almost all jurisdictions adopt a family of model codes by legislative action instead of attempting to write their own code. |
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True |
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False |
| 8. |
The role of building codes historically has been to ensure that an acceptable level of safety is maintained during the life of a house to limit life- threatening performance problems. Because the public may not benefit from an excessive degree of safety, code requirements must also maintain a reasonable balance between |
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Affordability |
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Safety |
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Both above |
| 9. |
In a typical two-story home, the load path for gravity loads and wind uplift involves the following structural elements
- Roof sheathing.
- Roof sheathing attachment.
- Roof framing member (rafter or truss).
- Roof-to-wall connection.
- Second-story wall components (top plate, studs, sole plate, headers, wall sheathing, and their interconnections).
- Second-story-wall-to-second-floor connection.
- Second-story-to-first-story-wall connection.
- First-story wall components (same as second story).
- First-story-wall-to-first-story or foundation connection.
- First-story-to-foundation connection.
- Foundation construction.
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True |
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False |
| 10. |
Most factors of safety fall in the range of |
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1.5 to 2.5 for residential design. |
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3 to 4 for residential design |
| 11. |
Safety is a relative measure that must be interpreted in consideration of the many assumptions underlying the treatment of uncertainty in the design process. Any reliable measure of safety must look to |
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past experience and attempt to evaluate historic data in a rational manner to predict the future. |
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A general safety factor of 2 |
| 12. |
Loads are a primary consideration in any building design because they define the nature and magnitude of hazards or external forces that a building must resist to provide reasonable performance (that is, safety and serviceability) throughout the structure’s useful life. The anticipated loads are influenced by a |
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building’s intended use (occupancy and function), |
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configuration (size and shape), |
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and location (climate and site conditions). |
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All of the above |
| 13. |
Wind produces dynamic loads on a structure at highly variable magnitudes. The variation in pressures at different locations on a building is complex to the point that pressures may become too analytically intensive for precise consideration in design. The first step to determine site design wind speed velocity presser in to refer to Fig 3.2 ( refer to ASCE 7-10 for a more detailed map) to select a design wind speed. |
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True |
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False |
| 14. |
A foundation supports and anchors the superstructure of a building and transfers all loads (including those from flood, wind, or seismic events) imposed on it directly to the ground. Foundations distribute the loads to the earth over an adequate area so that loads do not exceed the bearing capacity of the soil and so that lateral movement or settlement is minimized. In cold climates, the bottom of the foundation must be |
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below the frost line to prevent freeze-thaw damage and frost heave of the footing. |
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Waterproofed |
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Pier and beamed. |
| 15. |
In northern U.S. climates, builders and designers mitigate the effects of frost heave by constructing homes with perimeter footings that extend below a locally prescribed frost depth. Which other construction methods are also include for use. |
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Piles or caissons extending below the seasonal frost line. |
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Mat or reinforced structural slab foundations that resist differential |
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heave. |
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Non-frost-susceptible fills and drainage. |
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Adjustable foundation supports. |
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All of the above |
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