If percentage reduction in area of a certain specimen made of material 'A' under

CuriousTab

CuriousTab

Home Aptitude

Discussion

Home ‣ Mechanical Engineering ‣ Strength of Materials Comments

Question
If percentage reduction in area of a certain specimen made of material 'A' under tensile test is 60% and the percentage reduction in area of a specimen with same dimensions made of material 'B' is 40%, then
Options
A. the material A is more ductile than material B
B. the material B is more ductile than material A
C. the ductility of material A and B is equal
D. the material A is brittle and material B is ductile

Correct Answer

the material A is more ductile than material B

Strength of Materials problems

Search Results

1. The given figure shows the Mohr's circle of stress for two unequal and like principal stresses (?_x and ?_y) acting at a body across two mutually perpendicular planes. The normal stress on an oblique section making an angle ? with the minor principle plane is given by
Options
A. OC
B. OP
C. OQ
D. PQ

2. The strain energy stored in a spring, when subjected to maximum load, without suffering permanent distortion, is known as
Options
A. impact energy
B. proof resilience
C. proof stress
D. modulus of resilience

8. When a thin cylindrical shell is subjected to an internal pressure, there will be
Options
A. a decrease in diameter and length of the shell
B. an increase in diameter and decrease in length of the shell
C. a decrease in diameter and increase in length of the shell
D. an increase in diameter and length of the shell

9. The rectangular beam 'A' has length l, width b and depth d. Another beam 'B' has the same length and width but depth is double that of 'A'. The elastic strength of beam B will be __________ as compared to beam A.
Options
A. same
B. double
C. four times
D. six times

Comments

More in Mechanical Engineering: