QUESTION 7 Machine stress grading involves: O a. Initial sorting of timber using visual stress grading. O b. Visual chec

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Question 7 Machine Stress Grading Involves O A Initial Sorting Of Timber Using Visual Stress Grading O B Visual Chec 1 (54.59 KiB) Viewed 39 times

QUESTION 7 Machine stress grading involves: O a. Initial sorting of timber using visual stress grading. O b. Visual checking after grading to ensure grade compliance. O c. The application of load as a percentage of target strength to determine grade. d. Bending about the minor axis to determine the maximum modulus of elasticity for grading. QUESTION 8 Which of the following statements is false? O a. Free water is lost first followed by bound water during the seasoning process. O b. Fibre saturation point occurs when free water and a small percentage of bound water has been removed during the seasoning process. O c. Equilibrium moisture content can occur in timber at moisture contents around 15% O d. Growing trees have moisture content greater than 110%. QUESTION 9 Which of the following statements is NOT related to Kiln Seasoning? O a. Surface cells are damaged during the seasoning process. O b. Drying energy is used for rapid drying of timber. c. Fans and baffles are not required in the process. Od. Heated air and steam are introduced to charged kiln.