Top 1000+ Solved Strength of Materials MCQ Questions Answer
Q. The radius of wire stretched by a load is doubled, then its Modulus of elasticity will be..
a. doubled
b. halved
c. becomes 4 times
d. unaffected
Q. The factor of safety depends on i)Magnitude of external forceii) Properties of materialiii) Dimension of the componentiv) All of the above
a. i) and ii)
b. ii) and iii)
c. i) , ii) and iii)
d. iv
Q. In a tensile test of specimen,the ratio of maximum load to the original cross sectional area of test piece is called
a. yield stress
b. ultimate stress
c. safe stress
d. breaking stress
Q. In a body, thermal stress is one which arises because of the existence of
a. latent heat
b. temperature gradient
c. total heat
d. specific heat
Q. A localized compressive stress at the area of contact between the two surfaces is called as
a. tensile stress
b. bending stress
c. bearing stress
d. shear stress
Q. The ratio between change in volume to original volume of body is called………… strain.
a. tensile
b. compressive
c. shear
d. volumetric
Q. There is always a limiting value of load up to which the strain totally disappears on the removal of load; the stress corresponding to this load is called…………
a. elastic limit
b. unit stress
c. yield stress
d. none of the above
Q. Robert Hooke discovered experimentally that within elastic limit
a. stress = strain
b. stress x strain = constant
c. stress/strain = constant
d. none of the above
Q. When a tensile or compressive force (P) acts on a body, the change in its length is given by
a. pl/ae
b. ae/pl
c. pe/al
d. pa/le
Q. Modulus of elasticity is defined as the ratio of
a. shear stress to shear strain
b. linear stress to linear strain
c. linear strain to lateral strain
d. lateral strain to linear strain
Q. The ratio of linear strain to lateral strain is known as
a. modulus of elasticity
b. modulus of rigidity
c. poisson's ratio
d. none of above
Q. The ratio of lateral strain to linear strain is known as
a. modulus of elasticity
b. modulus of rigidity
c. poisson's ratio
d. elastic limit
Q. The relation between E (modulus of elasticity) and C (modulus of rigidity) is given by
a. e = c (1+µ)
b. e =2 c (1+µ)
c. e = c (1+2µ)
d. e =2 c (1+2µ)