Related Questions

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
A thin cylindrical shell of diameter (d) length ($$l$$) and thickness (t) is subjected to an internal pressure (p). The longitudinal stress in the shell is
A $$\frac{{{\text{pd}}}}{{\text{t}}}$$
B $$\frac{{{\text{pd}}}}{{2{\text{t}}}}$$
C $$\frac{{{\text{pd}}}}{{4{\text{t}}}}$$
D $$\frac{{{\text{pd}}}}{{6{\text{t}}}}$$
The ratio of circumferential stress to longitudinal stress in a thin cylinder subjected to an internal pressure is
A $$\frac{1}{2}$$
B 1
C 2
D 4
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
The longitudinal stress is __________ of the circumferential stress.
A One-half
B Two-third
C Three-fourth
D Double
In a shell and tube heat exchanger, putting a longitudinal baffle across the shell, forces the shell side fluid to pass __________ through the heat exchanger.
A Once
B Twice
C Thrice
D Four times
The longitudinal stress in a riveted cylindrical shell of diameter (d), thickness (t) and subjected to an internal pressure (p) is
A $$\frac{{{\text{pd}}}}{{{\text{t}}\eta }}$$
B $$\frac{{{\text{pd}}}}{{2{\text{t}}\eta }}$$
C $$\frac{{{\text{pd}}}}{{4{\text{t}}\eta }}$$
D $$\frac{{{\text{pd}}}}{{8{\text{t}}\eta }}$$
A thin cylindrical shell of diameter (d), length ($$l$$) and thickness (t) is subjected to an internal pressure (p). The ratio of longitudinal strain to hoop strain is
A $$\frac{{{\text{m}} - 2}}{{2{\text{m}} - 1}}$$
B $$\frac{{2{\text{m}} - 1}}{{{\text{m}} - 2}}$$
C $$\frac{{{\text{m}} - 2}}{{2{\text{m}} + 1}}$$
D $$\frac{{2{\text{m}} + 1}}{{{\text{m}} - 2}}$$
In a thick cylindrical shell subjected to an internal pressure (p), the maximum radial stress at the inner surface of the shell is
A Zero
B p (tensile)
C -p (compressive)
D 2p (tensile)
The maximum tangential stress in a thick cylindrical shell is always _________ the internal pressure acting on the shell.
A Equal to
B Less than
C Greater than
D None of these

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