Top 1000+ Solved Strength of Materials MCQ Questions Answer
Q. If a prismatic member with area of cross-section A is subjected to a tensile load P, then the maximum shear stress and its inclination with the direction of load respectively are
a. P/A and 45°
b. P/2Aand45°
c. P/2A and 60°
d. P/A and 30°
Q. The sum of normal stresses is
a. constant
b. variable
c. dependent on the planes
d. none of the above
Q. The radius of Mohr's circle for two equal unlike principal stresses of magnitude p is
a. p
b. p/2
c. zero
d. none of the above
Q. The state of pure shear stress is produced by
a. tension in one direction and equal compression in perpendicular direction
b. equal tension in two directions at right angles
c. equal compression in two directions at right angles
d. none of the above
Q. According to Rankine's hypothesis, the criterion of failure of a brittle material is
a. maximum principal stress
b. maximum shear stress
c. maximum strain energy
d. maximum shear strain energy
Q. Maximum bending moment in a beam occurs where
a. deflection is zero
b. shear force is maximum
c. shear force is minimum
d. shear force changes sign
Q. Rate of change of bending moment is equal to
a. shear force
b. deflection
c. slope
d. rate of loading
Q. The diagram showing the variation of axial load along the span is called
a. shear force diagram
b. bending moment diagram
c. thrust diagram
d. influence line diagram
Q. The difference in ordinate of the shear curve between any two sections is equal to the area under
a. load curve between these two sections
b. shear curve between these two sections
c. bending moment curve between these two sections
d. load curve between these two sections plus concentrated loads applied between the sections
Q. The variation of the bending moment in the portion of a beam carrying linearly varying load is
a. linear
b. parabolic
c. cubic
d. constant
Q. The maximum bending moment due to a moving load on a fixed ended beam occurs
a. at a support
b. always at the midspan
c. under the load only
d. none of the above
Q. A cantilever beam AB of length 1 carries a concentrated load W at its midspan C. If the freeend B is supported on a rigid prop, then there is a point of contraflexure
a. between A and C
b. between C and B
c. one between A and C and other between C and B
d. nowhere in the beam