Question

The fixed arch is most often used in reinforced concrete bridge and tunnel construction, where the spans are short.

(a) False

(b) True

I have been asked this question at a job interview.

Question is taken from Jack Arched and Flat Terraced Roof in section Different Type Roofs, R.C.C of Civil Engineering Drawing

Answer 1

The correct answer is (a) False

The explanation is: Because it is subject to additional internal stress caused by thermal expansion and contraction, this type of arch is considered to be statically indeterminate.