Related Questions

A pressure vessel is said to be a thick shell, if the ratio of wall thickness to its diameter is
A Equal to $$\frac{1}{{10}}$$
B Less than $$\frac{1}{{10}}$$
C Greater than $$\frac{1}{{10}}$$
D None of these
A thin spherical shell of internal diameter d is subjected to an internal pressure p. If $${\sigma _{\text{t}}}$$ is the tensile stress for the shell material, then thickness of shell is equal to
A $$\frac{{{\text{pd}}}}{{{\sigma _{\text{t}}}}}$$
B $$\frac{{{\text{pd}}}}{{2{\sigma _{\text{t}}}}}$$
C $$\frac{{{\text{pd}}}}{{3{\sigma _{\text{t}}}}}$$
D $$\frac{{{\text{pd}}}}{{4{\sigma _{\text{t}}}}}$$
In case of a shell and tube heat exchanger, the minimum shell thickness for carbon steel (inclusive of corrosion allowance) depends on shell diameter and is in the range of __________ mm.
A 3-5
B 5-11
C 8-15
D 12-18
In case of a 'thin' pressure vessel, the ratio of its diameter to wall thickness is
A [

A.

B. > 10

B > 20
C 30
A pressure vessel is said to be a thick shell, when
A It is made of thick sheets
B The internal pressure is very high
C The ratio of wall thickness of the vessel to its diameter is less than $$\frac{1}{{10}}$$
D The ratio of wall thickness of the vessel to its diameter is greater than $$\frac{1}{{10}}$$
A thin cylindrical shell of diameter (d), length ($$l$$) and thickness (t) is subjected to an internal pressure (p). The hoop 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 $$\frac{{{\text{pd}}}}{{6{\text{t}}}}$$
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 $$\frac{{{\text{pd}}}}{{6{\text{t}}}}$$
A thin spherical shell of diameter (d) and thickness (t) is subjected to an internal pressure (p). The stress in the shell material is
A $$\frac{{{\text{pd}}}}{{\text{t}}}$$
B $$\frac{{{\text{pd}}}}{{2{\text{t}}}}$$
C $$\frac{{{\text{pd}}}}{{4{\text{t}}}}$$
D $$\frac{{{\text{pd}}}}{{8{\text{t}}}}$$
A thin spherical shell of internal diameter d is subjected to an internal pressure p. If V is the storage capacity of shell, then its diameter will be
A $${\left( {\frac{{6{\text{V}}}}{\pi }} \right)^{\frac{1}{2}}}$$
B $${\left( {\frac{{6{\text{V}}}}{\pi }} \right)^{\frac{1}{3}}}$$
C $${\left( {\frac{{6{\text{V}}}}{\pi }} \right)^2}$$
D $${\left( {\frac{{6{\text{V}}}}{\pi }} \right)^3}$$
For a cylindrical shell, (subject to the thickness of uppermost course being more than the minimum for diaofthe tank in question), the thickness of the courses of shell
A Decreases upwards
B Increases upwards
C Remains same throughout
D May decrease or increase upwards depending upon whether vacuum or positive pressure would be maintained inside the shell

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