Situation - Wooden log is used to bridge a 2.5-m gap. The bridge will support a concentrated load of 26-kN . The allowable bending and shearing stresses of wood are 6.7 MPa and 1.3 MPa, respectively....

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Situation - Wooden log is used to bridge a 2.5-m gap. The bridge<br>will support a concentrated load of 26-kN . The allowable<br>bending and shearing stresses of wood are 6.7 MPa and 1.3<br>MPa, respectively. Neglect the weight of the log.<br>12. Determine the minimum log diameter (mm) based on shear.<br>А. 180<br>С. 190<br>D. 210<br>В. 200<br>13. Determine the minimum log diameter (mm) based on<br>bending.<br>A. 310<br>В. 290<br>C. 300<br>D. 280<br>14. If a rectangular log is used with width of 150 mm, select the<br>minimum depth to support the given load.<br>A. 290<br>В. 350<br>С. 300<br>D. 330<br>

Extracted text: Situation - Wooden log is used to bridge a 2.5-m gap. The bridge will support a concentrated load of 26-kN . The allowable bending and shearing stresses of wood are 6.7 MPa and 1.3 MPa, respectively. Neglect the weight of the log. 12. Determine the minimum log diameter (mm) based on shear. А. 180 С. 190 D. 210 В. 200 13. Determine the minimum log diameter (mm) based on bending. A. 310 В. 290 C. 300 D. 280 14. If a rectangular log is used with width of 150 mm, select the minimum depth to support the given load. A. 290 В. 350 С. 300 D. 330

Jun 11, 2022

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Situation - Wooden log is used to bridge a 2.5-m gap. The bridge will support a concentrated load of 26-kN . The allowable bending and shearing stresses of wood are 6.7 MPa and 1.3 MPa, respectively....

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