CIV $350$: Assignment #$2$

You are going to test three beam samples in the lab for flexural strength $[1].$

Case a$)$ You have four testing machines having capacity of $1)50kN,2,3)50\mathrm{.}5$ kN $4)55\mathrm{.}5$ kN $.$ The nominal strength of the beam is $48$ kN $.$ Which scale you are going to select? Mention the reason behind your choice.

Case b$)$ You have three extensometers $($to measure deflection$)$ having precision of $1)0\mathrm{.}001$ mm $2)0\mathrm{.}005$ mm $3$