

MCQOPTIONS
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1. |
The compatibility equation in terms of stress components in polar coordinates are given by ____________ |
A. | (( frac{ ^2}{ r^2} + frac{1}{r} frac{ }{ r}+ frac{1}{r^2} frac{ ^2}{ ^2} )( _r+ _ )=0 ) |
B. | (( frac{ ^2}{ r^2} + frac{1}{r} frac{ }{ r}+ frac{1}{r^2} frac{ ^2}{ ^2} )( _ )=0 ) |
C. | (( frac{ ^2}{ r^2} + frac{1}{r} frac{ }{ r}+ frac{1}{r^2} frac{ ^2}{ ^2} )( _r )=0 ) |
D. | (( frac{ ^2}{ r^2} + frac{1}{r} frac{ }{ r}+ frac{1}{r^2} frac{ ^2}{ ^2} )( _r+ _ )=1 ) |
Answer» B. (( frac{ ^2}{ r^2} + frac{1}{r} frac{ }{ r}+ frac{1}{r^2} frac{ ^2}{ ^2} )( _ )=0 ) | |