Top 1000+ Solved Strength of Materials MCQ Questions Answer
Q. The Poisson's ratio for steel varies from
a. 0.23 to 0.27
b. 0.25 to 0.33
c. 0.31 to 0.34
d. 0.32 to 0.42
Q. A steel bar of 5 mm is heated from 15?C to 40?C and it is free to expand. The bar will induce
a. no stress
b. shear stress
c. tensile stress
d. compressive stress
Q. Which of the following statement is correct?
a. The energy stored in a body, when strained within elastic limit is known as strain energy.
b. The maximum strain energy which can be stored in a body is termed as proof resilience.
c. The proof resilience per unit volume of a material is known as modulus of resilience.
d. all of the above
Q. When a load on the free end of a cantilever beam is increased, failure will occur
a. at the free end
b. at the fixed end
c. in the middle of the beam
d. at a distance 21 / 3 from free end
Q. In a beam subjected to pure bending, the intensity of stress in any fibre is
a. equal to
b. less than
c. more than
d. directly proportional to
Q. The assumption made in Euler's column theory is that
a. the failure of column occurs due to buckling alone
b. the length of column is very large as compared to its cross-sectional dimensions
c. the column material obeys Hooke's law
d. all of the above
Q. Strain rosetters are used tc
a. measure shear strain
b. measure linear strain
c. measure volumetric strain
d. relieve strain
Q. In a simple bending theory, one of the assumption is that the plane sections before bending remain plane after bending. This assumption means that.
a. stress is uniform throughout the beam
b. strain is uniform throughout the beam
c. stress is proportional to the distance from the neutral axis
d. strain is proportional to the distance from the neutral axis
Q. The assumption, generally, made in the theory of simple bending is that
a. the beam material is perfectly homogenous and isotropic
b. the beam material is stressed within its elastic limit
c. the plane sections before bending remain plane after bending
d. all of the above
Q. A closely coiled helical spring is of mean diameter (D) and spring wire diameter (d). The spring index is the ratio of
a. 1 / d
b. 1 / D
c. D / d
d. d / D