Question

204. A beam strongest in flexural is one
which has
(a) maximum bending stress
(b) maximum area of cross-section
(c) maximum section modulus
(d) maximum moment of inertia​

Answer 1

Answer:

a

Explanation:

maxium bending stress

Answer 2

Option C is correct

Maximum section module

Explanation :

• It is known as the second moment of area ratio and the separation between the neutral axis and the extreme fibre. It serves as a gauge for the strength of a particular member. The section modulus is used to compute the stress in the beam's outermost portion. S makes a reference to it.
• In this case, the terms "moment of inertia" (I) and "distance from neutral axis to top or bottom of fibre" (y) are used.
• "Section modulus" is measured in in.3 (mm3).
• The beam's cross sectional form is the only factor that influences section modulus. Shapes for cross sections include rectangular, square, circular, I and T, composite sections, etc.
• The "section modulus" for symmetric sections is same for sections above and below the fiber's centroid.
• Due to the varying distances between the centroid and the top and bottom of the material, an asymmetric section has two values for top and bottom of the fibre; the maximum "section modulus" is S m axe and the minimum section modulus is S min.

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