Related Questions

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
ক $${\left( {\frac{{6{\text{V}}}}{\pi }} \right)^{\frac{1}{2}}}$$
খ $${\left( {\frac{{6{\text{V}}}}{\pi }} \right)^{\frac{1}{3}}}$$
গ $${\left( {\frac{{6{\text{V}}}}{\pi }} \right)^2}$$
ঘ $${\left( {\frac{{6{\text{V}}}}{\pi }} \right)^3}$$
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
ক $$\frac{{{\text{pd}}}}{{{\sigma _{\text{t}}}}}$$
খ $$\frac{{{\text{pd}}}}{{2{\sigma _{\text{t}}}}}$$
গ $$\frac{{{\text{pd}}}}{{3{\sigma _{\text{t}}}}}$$
ঘ $$\frac{{{\text{pd}}}}{{4{\sigma _{\text{t}}}}}$$
M.I. of a thin ring (external diameter D, internal diameter d) about an axis perpendicular to the plane of the ring, is
ক $$\frac{\pi }{{64}}\left( {{{\text{D}}^4} + {{\text{d}}^4}} \right)$$
খ $$\frac{\pi }{{32}}\left( {{{\text{D}}^4} - {{\text{d}}^4}} \right)$$
গ $$\frac{\pi }{{32}}\left( {{{\text{D}}^4} + {{\text{d}}^4}} \right)$$
ঘ $$\frac{\pi }{{32}}\left( {{{\text{D}}^4} \times {{\text{d}}^4}} \right)$$
For unequal width of butt straps, the thicknesses of butt straps are
ক 0.75 t for narrow strap on the inside and 0.625 t for wide strap on the outside
খ 0.75 t for wide strap on the inside and 0.625 t for narrow strap on the outside
গ 0.75 t for both the straps on the inside and outside
ঘ 0.625 t for both the straps on the inside and outside
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
ক $$\frac{{{\text{pd}}}}{{\text{t}}}$$
খ $$\frac{{{\text{pd}}}}{{2{\text{t}}}}$$
গ $$\frac{{{\text{pd}}}}{{4{\text{t}}}}$$
ঘ $$\frac{{{\text{pd}}}}{{6{\text{t}}}}$$
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
ক $$\frac{{{\text{pd}}}}{{\text{t}}}$$
খ $$\frac{{{\text{pd}}}}{{2{\text{t}}}}$$
গ $$\frac{{{\text{pd}}}}{{4{\text{t}}}}$$
ঘ $$\frac{{{\text{pd}}}}{{6{\text{t}}}}$$
A thin spherical shell of diameter (d) and thickness (t) is subjected to an internal pressure (p). The stress in the shell material is
ক $$\frac{{{\text{pd}}}}{{\text{t}}}$$
খ $$\frac{{{\text{pd}}}}{{2{\text{t}}}}$$
গ $$\frac{{{\text{pd}}}}{{4{\text{t}}}}$$
ঘ $$\frac{{{\text{pd}}}}{{8{\text{t}}}}$$
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
ক $$\frac{{{\text{m}} - 2}}{{2{\text{m}} - 1}}$$
খ $$\frac{{2{\text{m}} - 1}}{{{\text{m}} - 2}}$$
গ $$\frac{{{\text{m}} - 2}}{{2{\text{m}} + 1}}$$
ঘ $$\frac{{2{\text{m}} + 1}}{{{\text{m}} - 2}}$$
A rotary internal combustion engine has __________ cylinders.
ক four
খ five
গ six
ঘ seven
If Bashar can run around a ground four times in 20 minutes and Rahim can run around the same ground three times in 12 minutes, who can run around that ground more times in an hour, and how many times more can he run around ?
ক Bashar, three times more
খ Rahim , three times more
গ They both go around 12 times
ঘ Bashar, eight times more

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