Top 150+ Solved Structural Mechanics MCQ Questions Answer
Q. A sudden jump anywhere on the Bending moment diagram of a beam iscaused by
a. Couple acting at that point
b. Couple acting at some other point
c. Concentrated load at the point
d. Uniformly distributed load or Uniformly varying load on the beam
Q. The diagram shown below, depicts bending diagram for
a. cantilever beam with uniformly distributed load
b. cantilever beam with uniformly distributed load only on half side of the beam
c. simply supported beam with varying distributed load
d. simply supported beam with uniformly distributed load
Q. A 10 m long cantilever beam is fixed at point B. What is the bending moment at point B, if 5 m span of AC carries uniform distributed load of 10 kN/m
a. 125 kN/m
b. 200 kN/m
c. 375 kN/m
d. 500 kN/m
Q. What is the maximum shear force acting on the beam shown below.
a. 125 N
b. 200 N
c. 4000 N
d. 8000 N
Q. At a point in a simply supported or overhanging beam where Shear force changes sign and Bending moment is
a. Maximum
b. Zero
c. Either increasing or decreasing
d. Infinity
Q. The beam having one end free and one end fixed is called as
a. Cantilever beam
b. Continuous beam
c. Overhang beam
d. Simply supported beam
Q. Uniformly varying load between two sections in shear force diagram isrepresented by
a. cubic curve
b. inclined line
c. horizontal line
d. parabolic curve
Q. In bending moment diagram, if no load acts between two sections, then it isrepresented by
a. horizontal line
b. inclined line
c. vertical line
d. all of the above
Q. What is the maximum bending moment acting on simply supported beamshown below?
a. 2000 Nm
b. 3000 Nm
c. 4000 Nm
d. 6000 Nm
Q. A beam is said to be of uniform strength, if
a. B.M. is same throughout the beam
b. Shear stress is the same through the beam
c. Deflection is the same throughout the beam
d. Bending stress is the same at every section along its longitudinal axis
Q. What is the product of sectional modulus and allowable bending stress called as?
a. Moment of inertia
b. Moment of rigidity
c. Moment of resistance
d. Radius of gyration
Q. A uniformly distributed load of 20 kN/m acts on a simply supported beam of rectangular cross section of width 20 mm and depth 60 mm. What is the maximum bending stress acting on the beam of 5m?
a. 5030 Mpa
b. 5208 Mpa
c. 6600 Mpa
d. Insufficient data
Q. Neutral axis of a beam always coincides with
a. Axis passing through bottom of beam
b. Axis passing through height h/2 from bottom
c. Axis passing through height h/3 from bottom
d. Axis passing through centroid
Q. Net force acting on the cross section of beam in bending is
a. Tensile
b. Compressive
c. Zero
d. None
Q. Net force acting on the cross section of beam in bending is
a. Tensile
b. Compressive
c. Shear
d. None