Lumber can be Air-Dried or Kiln-DriedGroup of answer choicesTrueFalse

Wood distortion (cupping, twisting, etc.) is mainly the result of improper kiln drying.Group of answer choicesTrueFalse

Wood that has been cut from the tree to produced dressed boards and timber is called:Group of answer choicesPlain-sawedTimberLumberQuarter-sawed

Moisture content of wood directly affects the size and dimensional stability of wood.Group of answer choicesTrueFalse

Quarter sawn lumber is characterized by relatively straight, vertical grain.Group of answer choicesTrueFalse

Mahogany, Iroko, Obeche and African walnut trees are examples ofQuestion 6Answera.Camwoodb.Plywoodc.Softwoodd.Hardwood