Question

Which of the following affect the selection of a value for allowable tension parallel to grain, before modification due to duration of loading?
I Wood Species
II Size of Member
III Single or multiple member use
IV Grade of lumber
V Duration of loading.
A. I, II, and IV
B. I, III, and IV
C. II, IV, and V
D. All of the above

Answer 1

• The values of allowable tension parallel to grain are different for different wood species and type.
• The Size and section properties also affect the values of allowable tension parallel to the grain.
• Using multiple members glued to each other can definitely change the value of tension.
• Grade of lumber is the quality of the lumber so , high grade has better properties than low grade ones.

So, the answer is D) All of the above

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