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Question
For a beam or triangular cross section as in the given figure, the distance from the neutral axis (NA) of the beam to the layer of maximum shear stress is:
A.
h / 6 downward
B.
h / 8 upward
C.
h/8 downward
D.

h/6 upward

Answer ( Option D)

h/6 upward

Solution

For a triangular cross-section, the shear stress distribution is parabolic, with:

· Zero shear stress at the apex.

· Maximum shear stress atfrom the base(or  from the centroid).

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