Top 1000+ Solved Strength of Materials MCQ Questions Answer
Q. A steel strip is welded to a copper strip of the same dimensions along the length. The coefficient of thermal expansion for copper is greater than that for steel. If temperature is increased, ___ .
a. copper has tensile stress
b. steel has tensile stress
c. both have tensile stress
d. none of the above
Q. While punching a hole in a metal sheet using a punch, stress is developed in the metal sheet.
a. normal compressive
b. normal tensile
c. shear
d. lateral
Q. While punching a hole in a metal sheet using a punch, stress is developed in the Punch.
a. normal compressive
b. normal tensile
c. shear
d. lateral
Q. Poisson’s ratio for rubber is……that for steel.
a. larger than
b. equal to
c. smaller than
d. any of the above
Q. For a certain material, E = 3K . The value of Poisson's ratio for the material will be__ _.
a. 0
b. 0.25
c. 0.5
d. 0.75
Q. Modulus of rigidity is defined as the ratio of
a. longitudinal stress to longitudinal strain
b. shear stress to shear strain
c. stress to strain
d. stress to volumetric strain
Q. Limit of proportionality depends upon
a. area of cross-section
b. type of loading
c. type of material
d. all of the above
Q. In a thin cylindrical shell, the ratio of longitudinal stress to hoop stress is
a. 0.5
b. 1
c. 2
d. 4
Q. If all the dimensions of a prismatic bar are doubled, then the maximum stress produced in itunder its own weight will
a. decrease
b. remain unchanged
c. increase to two times
d. increase to four times
Q. The relationship between Young's, modulus of elasticity E, bulk modulus K and Poisson'sratio u is given by
a. E = 2K(l-2u.)
b. E = 3K(l + u)
c. E = 3K(l-2u)
d. E = 2K(l + u)
Q. The elongation of a conical bar under its own weight is equal to
a. that of a prismatic bar of same length
b. one half that of a prismatic bar of same length
c. one third that of a prismatic bar of same length
d. one fourth that of a prismatic bar of same length