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.
15) The elongation of a conical bar under its own weight is____that of prismatic bar of the same length.
Answer is:
one-third
Explanation:
Related Strength of Materials MCQ with Answers
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.
Answer is:
their modulus of elasticity's
Explanation:
Modular ratio of the two materials is the ratio of their modulus of elasticity's.
E1/E2=modular ratio.