The deformation of a bar under its own weight = Wl^2 / 2E.
whereas Deformation under direct load = Wl^2 / E.
therefore The deformation of a bar under its own weight is half (1/2) the deformation if the same body is subjected to a direct load equal to the weight of the body.
14) The deformation of a bar under its own weight is____the deformation, if the same body is subjected to a direct load equal to weight of the body
Answer is:
half
Explanation:
Related Strength of Materials MCQ with Answers
Answer is:
one-third
Explanation:
Elongation of bar = (wl^2/2E).
Elongation of conical bar = (wl^2/6E).
Conical bar/Prismatic Bar.
= (wl^2/6E) / (wl^2/2E),
=1/3.
Answer is:
measure linear strain
Explanation:
A strain gauge rosette is a term for an arrangement of two or more strain gauges that are positioned closely to measure strains along different directions of the component under evaluation.
Strain rosetters are used to measure linear strain.
Answer is:
more than
Explanation:
The ultimate tensile stress for mild steel is more than the ultimate compressive stress.
Answer is:
smaller end
Explanation:
The maximum stress produced in a bar of tapering section is at smaller end.
As we know , stress inversely proportional to the area . So where the area is minimum stress is maximum, so answer is smaller end.
