Select 4 main reason of using wood for construction.

• ease of use

• relatively low cost

• durability

  (if properly designed)

• eco friendly

• availbility

Select 2 correct statement about CONIFERS

• slow growth

• easy to cut

• high dense

• less dense

Select 2 correct classification of softwood

• density - low

• color - darker

• color - lighter

• annual ring - indistinct

Select 2 correct classification of hardwood

• weight - lighter

• growth - slower

• annual rings - distinct

• density - high

What is the function of SAPWOOD (choose 2 answer)

• as a pipeline to transport sap

• provides structural strength for the tree

• as a storehouse for starches

• the location of all wood growth

What is the function of CAMBIUM?

• as a pipeline to transport sap

• provides structural strength for the tree

• as a storehouse for starches

• the location of all wood growth

What is the function of HEARTWOOD?

• growth layer for bark

• as a storehouse for starches

• provides structural strength for the tree

• growth ring direction

What if the effect of TANGENTIAL DIRECTION? (chose 2 answers)

• water easy to absorb

• strongest

• weakest

• most shrinkages

What if the effect of LONGITUDINAL DIRECTION? (chose 2 answers)

• least shrinkage

• strongest

• weakest

• most shrinkages

What is pith of tree?

• high dense area

• located at central core of the tree

• act as skin of tree

• solid structure