Related Questions

The longitudinal stress induced in a thin walled cylinderical vessel under internal pressure is
A $$\frac{{{\text{pd}}}}{{2{\text{t}}}}$$
B $$\frac{{{\text{pd}}}}{{4{\text{t}}}}$$
C $$\frac{{{\text{pd}}}}{{\text{t}}}$$
D $$\frac{{{\text{pd}}}}{{8{\text{t}}}}$$
Hoop (circumferential) stress induced in a thin walled 'Horton Sphere' used for the storage of liquid ammonia under pressure is
A $$\frac{{{\text{pD}}}}{{2{\text{t}}}}$$
B $$\frac{{{\text{pD}}}}{{4{\text{t}}}}$$
C $$\frac{{{\text{pD}}}}{{3{\text{t}}}}$$
D $$\frac{{{\text{pD}}}}{{6{\text{t}}}}$$
The circumferential (hoop) stress in a thin walled cylinderical vessel under internal pressure is
A $$\frac{{{\text{pd}}}}{{2{\text{t}}}}$$
B $$\frac{{{\text{pd}}}}{{4{\text{t}}}}$$
C $$\frac{{{\text{pd}}}}{{\text{t}}}$$
D $$\frac{{{\text{pd}}}}{{3{\text{t}}}}$$
Circumferential (hoop) stress in a thin cylindrical vessel under internal pressure is __________ the longitudinal stress.
A Half
B Equal to
C Twice
D Eight times
The design stress, which is more than the damaging stress, is the least unit stress that will render a member unfit for service before the end of its normal life. The design stress factor or factor of safety indicates the margin between design stress and the __________ stress.
A Working
B Damaging
C Allowable
D None of these
The stress induced in a body, when suddenly loaded, is _________ the stress induced when the same load is applied gradually.
A Equal to
B One-half
C Twice
D Four times
In a thin cylindrical shell subjected to an internal pressure p, the ratio of longitudinal stress to the hoop stress is
A $$\frac{1}{2}$$
B $$\frac{3}{4}$$
C 1
D 1.5
In a thin cylindrical shell, the hoop stress is __________ stress.
A Radial
B Circumferential tensile
C Compressive
D Longitudinal
When a cylindrical vessel, containing some liquid, is rotated about its vertical axis, the liquid surface is depressed down at the axis of its rotation and rises up near the walls of the vessel on all sides. This type of flow is known as
A Steady flow
B Turbulent flow
C Vortex flow
D Uniform flow
A plate with an elliptical hole in the centre, with semi-major axis (a) perpendicular to the direction of loading and semi-minor axis (b) along the direction of loading, is subjected to a pull P. The maximum stress induced at the edge of the hole is equal to (where $$\sigma $$ = Stress for a plate with no hole i.e. nominal stress)
A $$\sigma \left( {1 + \frac{{\text{b}}}{{2{\text{a}}}}} \right)$$
B $$\sigma \left( {1 + \frac{{2{\text{a}}}}{{\text{b}}}} \right)$$
C $$\sigma \left( {1 + \frac{{\text{b}}}{{3{\text{a}}}}} \right)$$
D $$\sigma \left( {1 + \frac{{3{\text{a}}}}{{\text{b}}}} \right)$$

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