Study

Wood as a Construction Material

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  • Because the fibers in round timber are intact, it can be regarded weaker than sawn timber of the same section area. True or False?
    False
  • When building materials are loaded, they are said to be subjected to _________.
    fiber stress
  • It is the easiest structural material to work with.
    Timber
  • When used in beams and columns, this refers to wood’s capacity to resist breakage.
    wood's strength
  • When subjected to fire, timber makes a great structural material. True or False?
    True
  • It is a widely utilized building material in many parts of the world due to its low cost, simplicity of working, appealing appearance, and long life if kept dry and insect-free
    Wood
  • Buildings made of timber materials do not require solid foundations as those made of heavy materials. True or False?
    True
  • Wood affected by this defect loses strength and loses its aesthetic appeal.
    decay
  • What type of wood defect is shown in the picture?
    insect damage
  • It is a wide piece of lumber from 4 to 5 inches thick.
    plank
  • What type of wood defect is shown in the picture?
    brittle heart
  • Softwood refers to wood harvested from deciduous trees, whereas hardwood refers to wood harvested from coniferous trees. True or False?
    False
  • It's a piece of wood that's less than 4 centimeters thick and at least 10 centimeters wide.
    board
  • When loaded, ______ woods resist deflection or bending.
    stiff
  • It is planed lumber having at least one smooth side.
    Surface or dressed lumber
  • Type of fungi which live primarily on the sapwood, but they can penetrate deep into the wood and detract from the appealing aspect of the wood.
    staining fungi
  • Term used when the direction of the fibers is nearly parallel with the side and edges of the board.
    straight grained
  • What type of wood defect is shown in the picture?
    fissures
  • A type of rough lumber with at least one flat surface that is cut tangent to the annual rings running the length of the log
    slab
  • Refers to the breakdown of wood brought on by alternating shrinkage and swelling caused by rain, fast temperature changes, humidity, and sunlight.
    Weathering