Top 1000+ Solved Strength of Materials MCQ Questions Answer
Q. The elongation of a conical bar under its own weight is equal to
a. that of a prismatic bar of the same length
b. one third that of a prismatic bar of the same length
c. One fourth that of a prismatic bar of the same length
d. one sixth that of a prismatic bar of the same length
e. None of the above
Q. A propped cantilever is indeterminate externally to
a. the second degree
b. the third degree
c. the fourth degree
d. None of the above
e. None of the above
Q. Secondary stresses may be set up in a frame due to any of the following reasons EXCEPT
a. rigidity of the members
b. ecentricity of connections
c. self-weight of the members
d. members not being straight
e. None of the above
Q. Which of the following is dimensionless?
a. Coefficient of linear expansion
b. Thermal stress
c. Strain
d. Bulk modulus
e. Shear stress
Q. Diamond riveting is generally used for
a. Butt joints
b. Lap joints
c. Revised joints for dissimilar materials
d. Riveted joints for materials of different thickness
e. None of the above
Q. When a number of loads rest upon a beam, dflection at any point is equal to the sum of the deflections at the point due to each of the loads taken separately. This statement is known as
a. Rankine's theorem
b. Mohr's hypothesis
c. Maxwell's theorem
d. Castigliano's theorem
e. None of the above
Q. The rate of change of bending moment is equal to
a. Shear force
b. Deflection
c. Slope
d. Poisson's ratio x deflection
e. None of the above
Q. Shear stress on principal planes is
a. maximum
b. minimum
c. zero
d. None of the above
e. None of the above
Q. Two steel shaft each of length L and outside diameter D are subjected to uniform torsion. The first shaft is solid while the second one is hollow with inside diameter D/2. The ratio of the strain energies that these two shafts can absorb without exceeding a maximum allowable shear stress, would be
a. 16?15
b. 3?4
c. 8?7
d. 16?15
e. 7?8
Q. A feinforced concrete beam is considered as made of
a. Composite material
b. Homogeneous material
c. Clad material
d. Hetrogeneous material
e. Isotropic material
Q. The shear stress required to cause plastic deformation of solid metals is known as
a. Flow stress
b. Proof stress
c. Rupture stress
d. Ultimate stress
e. None of the above
Q. Continuous beams are
a. Stronger and much stiffer than simple beams
b. Weaker and less stiffer than simple beams
c. Subjected to excessive shear strain
d. Withstanding double the maximum bending moment on simple beams
e. None of the above
Q. The method of increasing fatigue resistance by over-stressing the metal by successively increasing loading is known as
a. Coaxing
b. Relaxing
c. Compounding
d. Bauschinger effect
e. None of the above
Q. A continuous beam is one which is
a. Infinitely long
b. Supported at two points only
c. Supported at more than two supports
d. Fixed at the ends and simply supported at intermediate point
e. None of the above