SITUATION $(74-76)$: For the given truss shown,

Find the maximum ordinate of the influence diagram to obtain maximum stress for member FG$.$

a$.-0\mathrm{.}80$

b$.0\mathrm{.}80$

c$.0\mathrm{.}75$

d$.-0\mathrm{.}75$

Determine the length of the beam where the uniform load could produce a max. stress for member

FG$.$

a$.16m$

b$.14m$

c$.12m$

d$.10m$

What distance from the left support where a concentrated load could produce a maximum stress

for member FG$.$

a$.8m$

b$.4m$

c$.12m$

d$.16m$