The ratio of hoop stress to longitudinal stress for thin spherical shells is
A.2
C.0
E.There is no such ratio for spherical shells
Category: Strength Of Materials Mcqs
The plastic moment of a beam can be 50 percent more than the maximum elastic moment in case the cross-section of the beam is
A.Elliptical
B.Circular
C.Rectangular
D.I-section
E.Semi-circular
The ratio of maximum shear stress to average shear stress in case of a circular beam transmitting power is equal to
A.3?4
B.4?5
C.5?4
D.4?3
E.2?5
In case of a beam subjected to pure bending
A.the stress intensity in any fibre is uniform
B.the nature of stress in any fibre is identical
C.the stress intensity in any fibre is proportional to the distance of the fibre from the neutral axis
D.the stress intensity in any fibre is proportional to the distance of the fibre from the load carrying end
The assumptions generally made in the theory of pure bending is
A.The value of the Young’s modulus is the same for the beam material in tension as well as in compression
B.The elastic limit is well exceeded
C.The material of the beam is non-homogeneous
D.The transverse section of the beam suffers permanent distortion
E.The beam is rectangular in section
In case of thin cylindrical shell with hemispherical ends
A.The thickness of cylindrical is more than that of spherical ends
B.The thickness of cylinderical shell is less than that of spherical ends
C.The thickness of cylindrical is same as that of spherical ends
D.The thickness of cylindrical shell is double of the thickness of spherical shell
E.None of the above
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
A cylindrical section having no joint is known as
A.Perfect section
B.Jointless section
C.Seamless section
D.Strong section
E.Stress free section
