Name five methods for seasoning wood.
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- (a) Name five methods for seasoning wood.
(b) Briefly outline the Bethel full-cell process of timber preservation.
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- Question 6 True or false: Moisture content of wood influences wood density only up to FSP. Select one: O True O False10.6 The moisture content of wood test was performed according to ASTM D4442 procedure and produced the following data: Weight of specimen in the green condition = 317.5 g Weight of oven-dry specimen Calculate the moisture content of the given wood. 203.9 g %3DProblem: In ASTM D198 where it determines the flexure properties of wood such as modulus of rupture, modulus of elasticity, and failure conditions, determine the types of failure shown in each wood. Question 15 Use the editor to format your answer
- a) Describe two (2) types of timber product and its usage b) Seasoning is very important to achieve good quality timber. i) Define timber seasoning. ii) Describe the method of seasoning carried out in timber. iii) Explain two (2) types of defects caused by insufficient seasoning.What are the two main classes of wood? What is the main use of each class?State the names of two tree species of each class.The cross-sectional dimensions of a 4-ft-long wood member at 30 percent moisture content is 1.5 x 7.5 in. and its weight is 11 lb. At oven-dry condition, its dimensions and weight are 1.35 x 6.8 in. and 10.2 lb., respectively. What is its specific gravity at 30 percent moisture content?
- List the three grading methods that are used for wood.What are the main advantages of engineered wood products over natural-tim-ber members?Question 13 Which one of the following statements regarding durability is FALSE? O a. Use class 5 includes the most challenging service condition for wood. O b. Biological deterioration includes attack by bacteria, fungi, insects, or moulds. O c. Natural durability class 1 has the lowest durability. Od. The highest risk for wood decay is in wet and warm conditions.