Top 1000+ Solved Strength of Materials MCQ Questions Answer
Q. The slenderness ratio of a column is zero when
a. its length is exactly equal to radius of gyration
b. its length is half the radius of gyration
c. total load carried is less than half the dead weight
d. its length is supported on all sides throughout its full length
e. None of the above
Q. The ratio of shear modulus to the modulus of elasticity when Poisson's ratio is 0.25 will be
a. 0.4
b. 4
c. 1.4
d. 2
e. 3
Q. The theory of failure suitable for brittle materials is
a. distortion energy theory
b. maximum strain energy theory
c. maximum shear stress theory
d. maximum principal stress theory
e. None of the above
Q. The moment of inertia of an area is always least with respect to
a. Bottom most axis
b. Radius of gyration
c. Central axis
d. Vertical axis
e. None of the above
Q. In case of eccentrically loaded struts
a. Hollow section is preferred
b. Solid section is preferred
c. Composite section is preferred
d. Reinforced section is preferred
e. Any of the above sections mauy be used
Q. The relation between the bending moment and the moment of resistance e.g. M=fZ applies
a. Only to beams of circular cross-section
b. Only to beams of rectangular cross-section
c. When the beams are strained beyond the elastic limit
d. When the beams are not strained beyond the elastic limit
e. None of the above
Q. A boiler shell 100 cm diameter and plate thickness 12 mm is subjected to an internal pressure of 1.2 N/m2. The hoop stress will be
a. 45 N/m2
b. 135 N/m2
c. 180 N/m2
d. 50 N/m2
e. 155.5 N/m2
Q. Unsymmetrical bending is said to occur when
a. The bending moment diagram is unsymmetrical
b. The shear centre does not coincide with neutral axis
c. The beam is subjected to loads that do not lie in a plane containing a principal axis
d. The beam is subjected to thrust in addition to bending moment
e. The beam cross-section is unsymmetrical
Q. The column with highest equivalent length has
a. Both ends fixed
b. Both ends hinged and pin jointed
c. One end fixed other end hinged
d. None of the above
e. Measurement of longitudinal strains
Q. Rivets are generally specified by
a. Diameter of head
b. Overall length
c. Shape
d. Shank diameter
e. Thickness of plates to be joined
Q. Brass could not be used to reinforce concrete because
a. its densily is too large
b. its density is too low
c. it is too expensive
d. its coefficient of thermal expansion is not right
e. None of the above
Q. In a simply supported beam of span 3 mts., a point load of 60 kN acts at a distance of 1 mt. from left support, the shear force at 1 mt. from rt. Support is
a. Moment shear relation
b. 40 kN
c. 60 kN
d. 20 kN
e. 80 kN
Q. The assumptions generally made in the theory of pure bending is
a. The transverse section of the beam suffers permanent distortion
b. The value of the Young's modulus is the same for the beam material in tension as well as in compression
c. The beam is rectangular in section
d. The material of the beam is non-homogeneous
e. The elastic limit is well exceeded