Related Questions

The maximum value of hoop compression in a dome is given by (where, w = load per unit area of surface of dome R = radius of curvature d = thickness of dome)
A wR / 4d
B wR/2d
C wR/d
D 2wR/d
In a spherical dome subjected to concentrated load at crown or uniformly distributed load, the meridional force is always
A Zero
B Tensile
C Compressive
D Tensile or compressive
How many liters of a 90% of concentrated acid needs to be mixed with a 75% Solution of concentrated acid to get a 30 liter Solution of 78% concentrated acid?
A 8
B 6
C 7
D 9
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
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
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 the axis of load lies in the plane of rivet group, then the most heavily loaded rivet will be the one which (where, Fa is the load shared by each rivet due to axial load and Fm is the shearing load due to moment in any rivet.)
A Is at the maximum distance from CG of the rivet group
B Is at the minimum distance from CG of the rivet group
C Gives the maximum angle between the two forces Fa and Fm
D Gives the minimum angle between the two forces Fa and Fm
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 hoop stress in a riveted cylindrical shell of diameter (d), thickness (t) and subjected to an internal pressure (p) is (where $$\eta $$ = Efficiency of the riveted joint)
A $$\frac{{{\text{pd}}}}{{{\text{t}}\eta }}$$
B $$\frac{{{\text{pd}}}}{{2{\text{t}}\eta }}$$
C $$\frac{{{\text{pd}}}}{{4{\text{t}}\eta }}$$
D $$\frac{{{\text{pd}}}}{{8{\text{t}}\eta }}$$

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