Top 1000+ Solved Strength of Materials MCQ Questions Answer
Q. The shear force of a cantilever beam of length / carrying a uniformly distributed load of w per unit length is
a. zero
b. wl / 4
c. wl / 2
d. wl
Q. The shear force at the ends of a simply supported beam carrying a uniformly distributed load of w per unit length is
a. zero at its both ends
b. wl at one end and - wl at the other end
c. wl / 2 at one end and - wl / 2 at the other end
d. wl2 / 2 at one end and - wl2 / 2 at the other end
Q. The shear force diagram for a cantilever beam of length l and carrying a gradually varying load from zero at free end and w per unit length at the fixed end is a
a. horizontal straight line
b. vertical straight line
c. inclined line
d. parabolic curve
Q. The Rankine's formula holds good for
a. short columns
b. long columns
c. both short and long columns
d. weak columns
Q. The extremeties of any diameter on Mohr's circle represent
a. principal stresses
b. normal stresses on planes at 45?
c. shear stresses on planes at 45?
d. normal and shear stresses on a plane
Q. The Poisson's ratio for cast iron varies from
a. 0.23 to 0.27
b. 0.25 to 0.33
c. 0.31 to 0.34
d. 0.32 to 0.42
Q. The centre to centre distance, between two consecutive rivets in a row, is called
a. margin
b. pitch
c. back pitch
d. diagonal pitch
Q. The load at which the column just buckles, is known as
a. buckling load
b. critical load
c. crippling load
d. any one of these
Q. In a watch, the spring is used to store strain energy. This energy is released
a. to stop the watch
b. to run the watch
c. to change the time
d. all of these
Q. The product of the tangential force acting on the shaft and its distance from the axis of the shaft (i.e. radius of shaft) is known as
a. bending moment
b. twisting moment
c. torsional rigidity
d. flexural rigidity
Q. The shear force diagram for a simply supported beam carrying a uniformly distributed load of w per unit length, consists of
a. one right angled triangle
b. two right angled triangles
c. one equilateral triangle
d. two equilateral triangles
Q. The columns whose slenderness ratio is less than 80, are known as
a. short column
b. long column
c. weak column
d. medium column