Top 1000+ Solved Strength of Materials MCQ Questions Answer
Q. The shear stress at the outermost fibres of a circular shaft under torsion is
a. zero
b. minimum
c. maximum
d. infinity
Q. Which of the following statement is correct?
a. The size of hole drilled in riveting plates is less than the actual size of rivet.
b. The centre to centre distance between two consecutive rivets in a row is called margin.
c. Rivets are generally specified by its shank diameter
d. Tearing of plates can be avoided by taking the pitch of rivets equal to 1.5 times the diameter of rivet hole.
Q. A bolt is made to pass through a tube and both of them are tightly fitted with the help of washers and nuts. If the nut is tightened, then
a. bolt and tube are under tension
b. bolt and tube are under compression
c. bolt is under compression and tube is under tension
d. bolt is under tension and tube is under compression
Q. When a bar is subjected to a change of temperature and its deformation is prevented, the stress induced in the bar is
a. tensile stress
b. compressive stress
c. shear stress
d. thermal stress
Q. When a bar of length l, width b and thickness t is subjected to a pull of P, its
a. length, width and thickness increases
b. length, width and thickness decreases
c. length increases, width and thickness decreases
d. length decreases, width and thickness increases
Q. A beam of uniform strength has
a. same cross-section throughout the beam
b. same bending stress at every section
c. same bending moment at every section
d. same shear stress at every section
Q. Which of the following statement is wrong?
a. In the theory of simple bending, the assumption is that the plane sections before bending remains plane after bending.
b. In a beam subjected to bending moment, the strain is directly proportional to the distance from te neutral axis.
c. At the neutral axis of a beam, the bending stress is maximum
d. The bending stress in a beam is inversely proportional to the section modulus
Q. Which of the following statement is correct?
a. A continuous beam has only two supports at the ends
b. A uniformly distributed load spreads uniformly over the whole length of a beam.
c. The bending moment is maximum where whear force is maximum.
d. The maximum bending moment of a simply supported beam of length l with a central point load W is W l/8.