In a ring beam subjected to uniformly distributed load
i) shear force at mid span is zero
ii) shear force at mid span is maximum
iii) torsion at mid span is zero
iv) torsion at mid span is maximum
The correct answer is

Solution (By Examveda Team)

To understand the correct answer, let's analyze each statement: i) Shear force at mid span is zero
In a ring beam subjected to a uniformly distributed load, the ring beam is typically supported at its ends (near the supports). Due to the symmetry and equilibrium of forces, the shear force at the mid-span (middle portion between supports) is often zero. ii) Shear force at mid span is maximum
This statement is generally incorrect for a ring beam under uniformly distributed load. The maximum shear force usually occurs near the supports, not at the mid-span. iii) Torsion at mid span is zero
Torsion (or twisting) in a ring beam subjected to a uniformly distributed load is typically not zero at the mid-span. It can vary depending on the loading conditions and the configuration of the beam. iv) Torsion at mid span is maximum
In a ring beam, the maximum torsion often occurs at the mid-span, where the beam is subjected to maximum bending moments and shear forces due to the distributed load acting over the entire span. Conclusion:
Based on the typical behavior of a ring beam subjected to uniformly distributed load:

Shear force at mid span is zero (i) is correct.
Torsion at mid span is maximum (iv) is correct.

Therefore, Option B: (i) and (iv) is the correct answer.