What error results on a $30-m$ sight with a level if the rod reading is $3\mathrm{.}256$ m but the top of the $4-m$

rod is $0\mathrm{.}4$ m out of plumb? $(10pts$

A differential leveling loop began and closed on BM Pine $($orthometric height $900\mathrm{.}34$ ft $).$

The plus sight and minus sight distances were kept approximately equal. Readings $($in feet$)$

listed in the order taken are:

$6\mathrm{.}12(+S)$ on BM Pine

$6\mathrm{.}45(-S)$ on TP$1$

$5\mathrm{.}82(+S)$ on TP$1$

$4\mathrm{.}67(-S)$ on BM Oak

$3\mathrm{.}56(+S)$ on BM Oak

$5\mathrm{.}46(-S)$ on TP$2$

$4\mathrm{.}85(+S)$ on TP$2$

$4\mathrm{.}62(-S)$ on BM Pine

Prepare and adjust the notes. $(10$ points$)$

A differential leveling loop started and closed on BM Maple $($orthometric height $1105\mathrm{.}76$

ft $).$ The plus sight and minus sight distances were kept approximately equal. Readings $($in

feet$)$ listed in the order taken are:

$5\mathrm{.}02(+S)$ on BM Maple

$4\mathrm{.}78(-S)$ on TP$1$

$9\mathrm{.}12(+S)$ on TP$1$

$6\mathrm{.}70(-S)$ on TP$2$

$6\mathrm{.}38(+S)$ on TP$2$

$4\mathrm{.}80(-S)$ on BM Cedar

$4\mathrm{.}13(+S)$ on BM Cedar

$8\mathrm{.}95(-S)$ on TP$3$

$8\mathrm{.}19(+S)$ on TP$3$

$7\mathrm{.}45(-S)$ on BM Maple

Prepare and adjust the notes. $(15$ points$)$