Pick up the incorrect statement from the following:
A. The gross section of the web of rolled I-beams is the depth of the beam multiplied by the web thickness
B. The gross section of the web of channels is the depth of the web multiplied by its thickness
C. The gross section of the web of plate girders is the depth of the web plate multiplied by its thickness
D. None of these
Answer: Option D
Solution (By Examveda Team)
All the given statements are correct definitions related to the gross sectional area of webs in different structural members.Option A: The gross section of the web of rolled I-beams is accurately calculated as the depth of the beam multiplied by the web thickness.
Option B: For channel sections, the gross area of the web is indeed obtained by multiplying the depth of the web by its thickness.
Option C: In the case of plate girders, the gross section of the web is correctly given by the product of the web plate depth and its thickness.
Since none of the given statements are incorrect, the correct answer is Option D: None of these.

Correct option (D)