(10marks) (b) A concrete cylinder of diameter \( 150 \mathrm{~mm} \) and length \( 300 \mathrm{~mm} \) when subjected to an axial compressive load of \( 240 \mathrm{KN} \) resulted in an increase of diameter by \( 0.127 \mathrm{~mm} \) and a decrease in length of \( 0.28 \mathrm{~mm} \). Compute the value of poisons ratio \( (\mu=1 / \mathrm{m}) \) and modulus of elasticity \( \mathrm{E} \). (10marks)