TIMBER AS A STRUCTURAL MATERIALS

Given are the moisture content level for GREEN timber, EXCEPT:

• 21%

• 19%

• 20%

• 22%

Choose the right answer for three (3) subsystems of a timber:

• Softwood, Hardwood and Sapwood

• Trunk, Leaves and Roots

• Trunk, Crown and Roots

• Trunk, Inner Bark and Outer Bark

The age of a tree may be determined by counting its......?

• Growth Roots

• Growth Bark

• Growth Sapwood

• Growth ring

There are four (4) classifications of defects on timber that you have learnt. Hence, the defect shown on timber in the figure is classified as:

• Natural defects

• Chemical defects

• Conversion defects

• Seasoning defects

ETP improve wood  properties because  they are more reliable. Define ETP.

• EXCHANGED TIMBER PRODUCT

• ENGINEERED TIMBER PRODUCT

• EXPORT TIMBER PRODUCT

• ECONOMIC TIMBER PRODUCT

"For special purposes, particularly when the strength/ weight ratio of the timber is to be maximum, for example in towers for transmission lines."

Based on this statement, define the grade of timber to be used.

• Select

• Standard

• Simple

• Common