Question

A tapered rod of non uniform cross-sectional area is fitted between two rigid supports. The rod is
heated at the middle, then choose the incorrect options.​

Answer 1

Answer:

(A)Force of compression in the rod will not be maximum at mid-section because it is of non-uniform area of cross section.

(B)Compressive stress in the rod will be maximum at right end.(Correct)

(C)Transverse Strain is induced in the rod and it bends in the from of an arc due to heating on one side, resulting in compression in the lower side and tension on the upper.

Answer 2

Answer:

Force of compression will be same everywhere. But compressive stress more at narrow end.

and elastic strain is not zero and elastic strain is compensated by thermal strain so net strain is zero