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Q: An arch subjected to pure compression due to a UDL shall be a :
  • A. Three hinged circular arch.
  • B. Three hinged elliptical arch.
  • C. Parabolic arch
  • D. Fixed arch
Correct Answer: Option C - An arch subjected to pure compression due to a UDL shall be a parabolic arch. Arch is structure that is fitted to cover the top of the doors, windows etc. Arch is arranged in such a way that the entire load comes over the arch. Parabolic arches are used when the compression force on the arch is due to the distributed load.
C. An arch subjected to pure compression due to a UDL shall be a parabolic arch. Arch is structure that is fitted to cover the top of the doors, windows etc. Arch is arranged in such a way that the entire load comes over the arch. Parabolic arches are used when the compression force on the arch is due to the distributed load.

Explanations:

An arch subjected to pure compression due to a UDL shall be a parabolic arch. Arch is structure that is fitted to cover the top of the doors, windows etc. Arch is arranged in such a way that the entire load comes over the arch. Parabolic arches are used when the compression force on the arch is due to the distributed load.