The beam shown below is made of air-dried Douglas fir (E = 1900 ksi) with an allow- able flexural stress of 2000 psi, an allowable shearing stress of 85 psi, and an allowable deflection of 0.8 in. Select the lightest standard structural timber that can be used to support the load shown in the figure. 12 ft 8000 lb B 12 ft

The beam shown below is made of air-dried Douglas fir (E = 1900 ksi) with an allow- able flexural stress of 2000 psi, an allowable shearing stress of 85 psi, and an allowable deflection of 0.8 in. Select the lightest standard structural timber that can be used to support the load shown in the figure. 12 ft 8000 lb B 12 ft

Elements Of Electromagnetics

7th Edition

ISBN:9780190698614

Author:Sadiku, Matthew N. O.

Publisher:Sadiku, Matthew N. O.

ChapterMA: Math Assessment

Section: Chapter Questions

Problem 1.1MA

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Question

The beam shown below is made of air-dried Douglas fir (E = 1900 ksi) with an allow-
able flexural stress of 2000 psi, an allowable shearing stress of 85 psi, and an allowable
deflection of 0.8 in. Select the lightest standard structural timber that can be used to
support the load shown in the figure.
12 ft
8000 lb
B
12 ft
C

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