Top 1000+ Solved Strength of Materials MCQ Questions Answer
Q. The theory of failure considered appropriate for ductile materials is
a. Rankines theory
b. Beltrami's theory
c. St. Venant theory
d. Von Mises theory.
e. None of the above
Q. A bronze specimen has modulus of elasticity 1.2 x 105 N/mm2 and modulus of rigidity 4.7 x 104 N/mm2. The Poisson's ratio of the material will be
a. 0.196
b. 0.276
c. 0.45
d. 0.471
e. None of the above
Q. The intensity of wind pressure is taken as
a. directly proportinal to wind velocity
b. universely proportional to wind velocity
c. directly proportional to square of wind velocity
d. inversely proportional to square of wind velocity
e. None of the above
Q. Which of the following statement is incorrect?
a. At a hinge in a beam there is no bending moment but there is shear force
b. In case of inclined loads horizontal components cause thrust in the beam
c. Bending moment is maximum at a point where shear force is zero or where it changes deflection from positive to negative or vice versa
d. The point where shear force is zero is known as the point of contraflexure
e. None of the above
Q. A tower subjected to load W has self-weight 2W. It is to be designed for constant compressive stress at all sections. The cross-section of the tower should have
a. Tapering section
b. Circular section
c. Parabolic section
d. Hyperbolic section
e. None of the above
Q. The Young's modulus of elasticity of a material is twice its modulus of rigidity. The Poisson's ratio for the material will be
a. Zero
b. 0.5
c. 1
d. None of the above
e. None of the above
Q. Web crippling occurs due to
a. column action of the web
b. failure of web under concentrated load
c. excessive bending moment
d. secondary stresses
e. None of the above
Q. The light gauge steel structural members are usually
a. hot rolled
b. cold rolled
c. casted
d. riveted
e. None of the above
Q. Static loading of a specimen
a. Is done in steps
b. Is done by continuously increasing the work load
c. Is done by applying load in a short period during specified intervals
d. Is done by applying the load slowly enough so that all parts of the specimen are in equilibrium at any instant
e. None of the above
Q. A beam fixed at both ends with a central load W in the middle will have zero bending moment as
a. One place
b. No where
c. Three places
d. Four places
e. Two places
Q. A body is subjected to two normal stresses of 200 kN/m2 (tensile) and 100 kN/m2 (compressive) acting mutually perpendicular to each other. The maximum sher stress is equal to
a. 50 kN/m2
b. 100 kN/m2
c. 150 kN/m2
d. 300 kN/m2
e. None of the above
Q. In case of non-dilatent materials, the maximum value of Poisson's ratio is
a. 0.5
b. 0.25
c. 0.33
d. 0.47
e. 0.6
Q. A self-supporting steel chimney transmits the lateral forces to the foundation by
a. fixed beam action
b. proposed beam action
c. cantilever action
d. simply supported beam action
e. None of the above
Q. The phenomenon under which the strain of a material varies under constant stress is known as
a. Buchinger's effect
b. Hysteresis
c. Visco-elasticity
d. Creep
e. Strain hardening