A long column fails by
ACrushing
BTension
CShearing
DBuckling
Answer:
D. Buckling
Read Explanation:
Columns fail by either crushing or buckling. Short columns fail by crushing due to direct compressive stress. Long columns fail by buckling due to lateral deflection of the bar. Intermediate columns fail by combined buckling and crushing. Euler theory is applicable only for long columns and Rankine theory considers combining crushing and buckling mode of failure.